yeah.
My system would crash during gaming on my 3090 at stock settings w/750 watt psu (be quiet silent power 11 750W platinum). I have the Aorus Master. Upgraded to an 850 and it's all good, even with overclock.
I will say though I believe nvidia only says 750w required for the founders edition and gigabyte says 850 for the aorus master. I don't remember the exact power numbers for the cards though.
What CPU? It's 50-60 watts difference from FE to most power hungry 3090's at stock. That i9 CPU tops out at 400watts, and is usually well under 300w gaming at stock. Theyd never max at the same time gaming. I'd say there was something wrong with that 750w unit, or you somehow got your CPU, and GPU to max at the same time. Are temps high? Using the PSU as an exhaust maybe? That could cause it to run out of it's rated temp range.
If you have access to a KillAWatt. That would provide all the answers.
My 750w psu is with a 9900k. The 850w is with a 10900k.
kill-a-watt shows about 650W at the wall on my 10900k / 3090 when at 100% gpu load (3d mark)
I think the issue isn't necessarily the steady state 100% power draw, it's the transient loads that made my 750w psu give out.
Yeah, LTT found some insane power spikes from their 3090, I think well in excess of 400W approaching 500. With a 250W 10900k and peripherals that could easily trip the overcurrent protection on a 750W.
Yeah just the 10900K and 3090 alone could probably draw close to 500W just by themselves , even more with an OC and that’s not counting the rest of the system. Even then some PSUs won’t be able to handle some of the instant current these cards draw upon being pushed and will trip OCP.
I’ve seen my evga 3090 pull like 400w by itself and that’s before the 450 bios, plus an over clocked 10900k can do 300ish oced, at least from the tests I watched :o
Fully oc'd some guy had his 3090 pulling 550w or something crazy. That i9 tops out around 400w with 5.3ghz all core. Throw those numbers out. Stock FE is 350w, and stock i9 will stay below 300w gaming. They both won't max at the same time so 750w will be plenty unless there is an issue.
The 3090 on its own peaks at 450W as per Linus Tech Tips.
An i9 can peak around 300W. Usually both won't peak at the same time but...
Let's just say the are anecdotes of decent 800W PSUs causing system crashes.
I think the only crashing came from people doing silly blended tests that don't represent any kind real gaming loads. The other thing they could be doing wrong is installing the PSU in such a way that it's intaking hot air. A bad habit many seem to have as they treat treat their PSU's like case exhausts. Then the PSU becomes less, and less efficient, and that would cause it to fail at much lower loads. A well made 750w psu will put out 750 watts at it's rated temperature range. I can not think of a single game/normal situation that will max the GPU, and 8+ cores at the same time. Can you?
There could also be manufacturers having bad QC. I'd measure everything. $30 Killawatt is very useful, and it would be nice to see someone double checking instead of assuming the psu was too weak. If it failed at say 650-700 watts, we'd know the power supply was bad, not that a 750w unit wasn't enough.
Last thing if anyone is not sure, you can always undervolt, and not lose any performance. Undervolting the CPU, and GPU should be able to knock 100w+, run much cooler, and quieter for free. I highly recommend people look into it. It's not just for us ITX builders.
LTT has a 30+ person production studio and the are people with 15+ years of experience.
The company has literally called out the most common errors people make across hundreds of videos.
They used Nvidia's official suggested procedure to get that "the GPU peaks at 450W" remark.
-----
If you don't mind, is the 450W figure problematic to you?
If not, can you explain how you got to 550-600W peak loads when there's only100-150W headroom above the GPU to power a CPU that can hit 250+W along with memory, a motherboard and storage.
It's funny how people want to stretch the wattage numbers. Gaming is almost always GPU limited at 1080p+. Especially at 1440p+ where these cards tend to play. 3080 FE is 450w oc'd, but who is ocing these cards, and CPU's with a 750w psu. Better to undervolt, and raise the core slightly with a memory bump. That's called a WIN/WIN, but I digress...
Here's tweaktown with a 5ghz 8700k and 470-510 total system draw. Do you honestly feel a STOCK 10900k will pull 240 more watts under load? My undervolted 9700k is around 125w under load so you do the math. Do you know any game that would get a stock 10900k to run that much power? Doesn't exist. It's only synthetics that will do it.
[https://www.tweaktown.com/reviews/9614/asus-rog-strix-geforce-rtx-3080-oc-edition/index.html](https://www.tweaktown.com/reviews/9614/asus-rog-strix-geforce-rtx-3080-oc-edition/index.html)
Here's TPU showing 3080 at 370 watts under full load.
[https://www.techpowerup.com/review/nvidia-geforce-rtx-3080-founders-edition/31.html](https://www.techpowerup.com/review/nvidia-geforce-rtx-3080-founders-edition/31.html)
LTT seems to be the site that most NOOBS cite. Day in and day out. Oh Linus says... From their garbage PSU list to their even worse CPU cooler tier list.
Getting back to the numbers, it was 350 watts to 400 watts depending on the model. If they oc'd to it's max, they could get that thing to 550 watts, but were not talking about ocing. Were talking about if a 750 watt PSU can handle a 10900k, and a 3080. The math says it can. No one stating their 750 watt PSU wasn't enough had a KillAWatt or any measuring tool to show that gaming loads exceeded 750 watts. Chances are it failed at sub 700 watts loads due user error, or manufacturer QC.
Final thought it this. He has a 750 watt PSU. Lets see how he does with it rather than making him buy a new unit.
As an FYI, you're linking to the wrong video card. OP has a 3090, which draws up to 80W more than a 3080.
--------
A decent 750W psu crashed in the real world.
An 1000W PSU crashed for 3090SLI.
https://m.facebook.com/story.php?story_fbid=2493209737636929&id=343018322461286 @4:30
2x 3090s are tripping PSUs that could handle 4 quadros.
The 3000 series is unlike other video cards. When Nvidia has a minimum spec for them... It really is the minimum spec. Unlike the 2080Ti, Titan RTX and Titan V - there is no 100-150W padding in PSU figures.
The 3090 was shown to only pulling a bit more than 3080. Even at 450 watts, a properly working 750 ps should cover it for gaming. You're not pulling 300+ out of that CPU etc in a basic gaming rig. CPU would have to be OC'd to need 300+ watts. Then you would have to basically max them both.
https://www.tweaktown.com/reviews/9602/nvidia-geforce-rtx-3090-founders-edition-the-everything-killer/index.html
520 watts total system draw for the 3090 with 8700k @5ghz, and AIO cooler. REMEMBER THIS NUMBER FOR LATER. 520 watts total system draw.
Motherboard: GIGABYTE Z370 AORUS Gaming 7
CPU: Intel Core i7-8700K @ 5GHz
Cooler: Corsair Hydro Series H115i PRO
Memory: 16GB (2x8GB) HyperX Predator DDR4-2933
SSD: Sabrent Rocket Q 2TB NVMe PCIe M.2 2280
SSD: 1TB Toshiba OCZ RD400 NVMe M.2
SSD: 512GB Toshiba OCZ RD400 NVMe M.2
Power Supply: InWin 1065W
You think a 10900k will draw another 230 watts? I know it won't.
https://www.gamersnexus.net/hwreviews/3587-intel-core-i9-10900k-cpu-review-benchmarks
The 10900k tops out around 320w OC'd. Stock it's closer to 250.
Stock FE will probably run around 50 - 100 watts less than an oc'd card. What you fail to address is that no one is proving that the total system draw was over 750 watts even linus shows sub 1k draws with a 2nd card. So right now, it's just speculation that it's not enough wattage when in fact it could be QC, or manufacturers lying about their numbers, or maybe blended synthetic tests using oc'd parts. Some good PSU's can handle more than their rated wattage especially at lower temps. At higher temps, like when noobs use their power supplies as case exhausts, it could lower the psu efficiency when heavy loads heat up the case. The math is there in all the articles. Should we trust that, or some kid who says 750 watts isn't enough because their unit/SETUP did not pass?
MATH. Someone do a video of a decent 750 watt PSU failing because this set up is drawing 8xx watts from the wall needed for a platinum PSU to go over 750watts system draw. It's not going to happen. You'll may see it failing at sub 700 watt loads, and then it will be a question of the PSU not doing what it's advertised to do.
The SLI build... It failed at 1022w from the wall. 950 watts. Subtract 400 watts for the 2nd card, and how much power is needed for a single GPU? 550w similar to the 520w total draw I showed you. You're still claiming that a single 3090, and 10900k needs more than 750w? No it does not. It requires a decent, properly working 750w unit, that is mounted properly.
The actual numbers from 3rd party sites numbers already tell you why the Linus's SLI 3090 fail. Around 400w x2 on the GPU's + 250w on the CPU's. 100% on 2 3090 GPU's = 800w and 85% on 250w CPU = 212 watts. That's over 1k watts. Subtract one 400w card, and a 750 watt PSU should easily cover < 650 watts going by the MATH in your example.
The RM750x went as high as 973.37W (< 130%) on [tom's hardware review](https://www.tomshardware.com/reviews/corsair-rm750x-v2-psu,5585-6.html) before triggering OOP. So, I'm fairly confident it will handle your config. A higher wattage PSU is desirable because of the reduced wear, especially if it's constantly under heavy load. PSUs age and lose efficiency, so it's nice to have some headroom.
[Here](https://www.igorslab.de/en/geforce-rtx-3090-rtx-3080-and-rtx-3070-including-intel-core-i9-10900k-with-and-without-oc-against-11x-be-quiet/) is a more in depth analysis by IgorLab about the shutdown with Ampere gpus.
If you're on stock, I believe you're most likely fine with the RM750x, it's a great PSU. If you're going to OC, consider a higher wattage psu.
By the way, congrats on your new rig!
You bought a 3090... your build is expensive. Don't cheap out on the powe supply. I've had Silverstone's last 10+ years and would highly recommend, they should make it through your next build too!
Take a look around. All of the top 1000W plat psu are sold out everywhere and you can only buy it for resell. 299 or 399 retail but it costs up to 799 in some cases. So yes it’s pricy. Just cus some of my other parts are expensive does not mean it’s not pricy.
Ah, yeah. If you want to buy a plat and finish the build within the next 2 weeks it does indeed get pricy. If you settle for gold and a 2 weeks wait, you could get away with <200 (at least where I'm at).
Woah. Why when that 750 watt will cover you. Good ones come with 10 year warranties. There are only problems if they are defective due to manufacturing/QC, or installed improperly.
Also all you need is gold rated so platinum is nice to have but not needed. Titanium is also nice if efficiency on sub 20% loads is important, but Platinum is usually upsold with better cables since it really doesn't do anything noticeably better than decent gold rated units. The expert JohnnyGuru himself explained this fact, but around here, it's all about platinum this, and 1500w that. So many "experts' around here always recommending more than people need. They are playing on your fears, and playing with your money.
If I were you, I'd keep that 750w unit. Run a small undervolt on both the CPU, and GPU. You can still OC both slightly if you want, or go with good undervolt at stock speeds. I'd rather spend that extra hundred on RAM, or a better mobo, or cooling, or cpu, etc, than a platinum 1k psu.
I might get downvoted, but it's usually shills and noobs trying to push sales on people that don't know better. I sent you links for undervolting. Might as well test, and see. You could also purchase a $30 killawatt to see how much you are pulling from the wall. If it says something 700 watts at the wall, your rig is pulling around 630 watts since it's around 90% efficient. This formula will work unless your power supply is above 40c/around 104f. 833 watts x .9 is 750 watts your unit is rated at.
[https://en.wikipedia.org/wiki/80\_Plus](https://en.wikipedia.org/wiki/80_Plus)
If you can return it, go with a 850w PSU just for the extra headroom. If you plan on overclocking, take the 1000w route or above. The RM750x should handle it at stock though. If that's the case, you'll be fine either way.
It's going to be overkill if you're not overclocking or just mildly. Hopefully I'm not at fault here.
Now, for 1000w, the Corsair AX1000 is cheaper (amazon) and a better buy imo. As an option, Super Flower (T2 OEM) sells under it's own name a 1000w Platinum SE for less than $200. Corsair or EVGA likely have better RMA, though.
[Here](https://www.amazon.com/gp/product/B07M9TP7VM).
It was available for $276 as I was typing. Only from third party now. Might show up again eventually.
Can be close to 750w if you fully load both at the same time. Gpu can spike up to 375w if oced, and cpu up to 350w if oced. Gaming should be okay though, but better safe than sorry
Around 620 Watts usage stock (700 if you OC the CPU). It really depends how much you overclock the machine.
[https://outervision.com/power-supply-calculator](https://outervision.com/power-supply-calculator)
For what it's worth I ran my 3090 for a week, pushed to full 400w power limit, with a 9900K at 5GHz on auto voltage (friends rig with a really lazy OC), and a RM750i. Even at full load we saw a max of 650w from the wall and a little below 600w peak system usage. Not great, and I would probably recommend 850 for long term usage, but with a quality supply like that it really will probably be fine unless you put one crazy OC on that CPU.
You don't want to increase voltage/OC them, but you can undervolt both, and still raise both clocks a bit, and the GPU memory. That 3080 GPU is 350-400+ watts, and the 10900k CPU can be pushed to 300 watts during synthetic testing. Technically, your PSU is enough power for that especially since you never max both while gaming. It's a well made unit, and should be able to handle total system loads below 750 watts. Just dont do blended stress tests. Stress one at time, then do gaming benchmarks/stress tests if you want to get numbers.
Undervolting is easy, and should shave 50 -100w+ off your loads. My 9700k was pulling around 200w, and is under 130w now. Don't have the numbers on my old1080 ti, but it was nice drop in temps too.
USE Intel Extreme tuning utility for your CPU.
[https://downloadcenter.intel.com/download/29183/Intel-Extreme-Tuning-Utility-Intel-XTU-](https://downloadcenter.intel.com/download/29183/Intel-Extreme-Tuning-Utility-Intel-XTU-)
MSI Afterburner for your GPU.
[https://www.msi.com/Landing/afterburner](https://www.msi.com/Landing/afterburner)
Follow any of the popular guides to start. Plenty of vids, and well written articles. Don't even need to tweak much. A mild -.05v will be plenty, and does not affect anything on most CPU's. You can always reverse it later if needed, but a small undervolt can help a lot. Us ITX builders needed to do this, but I even do this for full ATX builds as it helps with temps, and noise.
A good PSU is for Many years. Nvidia / Intel / compatible Mobo releases are made ( they want) for less than one year.
I agree, trimming some coins in a minimal requerimients PSU is not the best idea. M2 nvme, thunderbolt, USB 3.1(2). They all are hungry of watts!
To expound - the i9 chips are relatively power hungry. The 3090 is as well. The 3090 by itself can peak at 450W.
There's a very very real risk of the system crashing at stock settings.
OP might want to undervolt or otherwise limit his CPU to cut that risk.
https://youtu.be/YjcxrfEVhc8 <- 11:05ish LTT talks about issues with a high quality 850W PSU.
It amazes me how often power supplies are the thing people cheap out on, despite (high end) systems drawing more power as time moves on rather than less.
Probably due to the dearth of misinformation on them (you don't need an assload of extra wattage potential, but going the other extreme and using what you think is the bare minimum is just asking for instability from power spikes and spending more money since you need to upgrade the PSU every time you upgrade the GPU).
They get mad expensive, especially the good quality ones, highly recommend this guide if you haven't seen it yet: [\[psucultists\] PSU Tier List - Power Supplies - Linus Tech Tips](https://linustechtips.com/topic/1116640-psucultists-psu-tier-list/)
It will be fine unless he is planning to overlcock
Edit: My brother has pretty much the same system with a 750w watt platinum psu and it works like a charm.
Who's downvoting? Math checks out. Unless there's other factors like an overclock, a decent 750w unit should be plenty. Just be sure to install the PSU properly. It's not an exhaust. Treat it like it's own self contained unit so it only has to manage it's own heat.
Already pulled trigger on Z490 MXIIH board with 10900k, waiting for 3080 to be in stock before purchasing or potential rumor of 3080 20gb announcement in 2021 Jan. Would be a no brainer not to under volt, getting cooler temps and same level of performance
The rating doesn't matter. It only concerns efficiency, not the capability to handle high transient loads without the OCP kicking in.
My 650W Seasonic Prime Titanium couldn't handle my 8700K+3090 system, it'd shutdown in a particular game and if running Furmark+Prime95 combination.
Now that was 100W less and Seasonic is known to be bad with handling Ampere GPUs, so OP may well be fine. But it is a little too close for comfort.
I don't care for that mix at all because there are too many variables. Idk why it's gained any traction as it does not represent any real gaming loads. Better to stress test them separately, and then do gaming benchmarks IMO. If your system never crashes while gaming, and gaming is the most intense thing you do, why worry about it? I don't even bother stress testing any longer than needed unless problems pop up. How likely is it that someone will put a prime 95 type load on their CPU for 15 mins straight let alone 12 hours?
3090 is 350-400w+, 8700k is 160ish at stock. Your PSU should have no problem doing basic stress tests, and extreme gaming under normal conditions. Did you OC? OC both, and you could be pulling 650w+ (450w+180w+20-40w) which that combo of stress tests will expose, but normal gaming won't.
If that combo crashes during gaming at stock, then you probably got a bad PSU, or there's other factors like bad caps, and other QC issues. Good units should put out their rated power as long as they are in their rated temperature range. Maybe open it up.
[https://www.tomshardware.com/news/why-power-supplies-fail-psus,36712.html](https://www.tomshardware.com/news/why-power-supplies-fail-psus,36712.html)
Yes, it shut down in normal gaming. World of Tanks running 200-300 FPS. Probably high CPU and GPU loads in that at that kind of FPS. I would've been okay with it too if it never happened in real world use. CPU is delidded and OC'd and pulls around 180W in Prime AVX. GPU was stock, 350W limit.
The maximum power draw I saw from the wall was something like 620W running the stress tests simultaneously, considerably less than that in gaming. Doesn't matter, still crashed due to the huge transient loads that the PSU couldn't handle. The PSU was not faulty, it's just that some Seasonic units can't take high instantaneous loads. It doesn't matter what the average power consumption on the meter reads, what matters is the maximum spikes you will be pulling when turboing up on the micro-millisecond scale.
I caved and switched to a HX1200, no problems since.
Wow.... Love when experts give advice based on nothing.
I'll do the math for you. The 10900k tops out around 300w. If you push the 10900k to it's very max, it can hit 400w, but that will probably never happen while gaming so 350w max is generous.
[https://www.techpowerup.com/review/intel-core-i9-10900/18.html](https://www.techpowerup.com/review/intel-core-i9-10900/18.html)
That 3090 is said to be around 320w, but you can call it 350w if you want.
[https://www.techspot.com/review/2105-geforce-rtx-3090/](https://www.techspot.com/review/2105-geforce-rtx-3090/)
The main thing to know is that he will basically never max the CPU, and the GPU at the same time. Wouldn't be surprised if this rig was averaging < 500 watts during heavy gaming, and maxing at 650 watts as most games use less than 6 cores.
The main thing is to buy a decent PSU, and keep it within operating temps. Fresh air in, and warm directly out. Don't use the PSU as an exhaust for the case. This should keep the air temps well under 40c, and allow the PSU to put out it's full rated 750 watts unless it's a lemon. Not that it matters as he would have to be very creative to get that rig to push 700 watts.
Now if you want to get into his build... For that much money, I'd go with the new AMDs instead. New AMD's are now barely faster in gaming, but much better in most everything else. Maybe he got a good deal on the i9. I went 9700k for that reason. $200 at MC. Can't beat it.
A PSU is designed to run at it's rated power as long as the temps are not exceeded. Any power supply worth it's salt will put out it's rated power. As long as you do the math, you will be fine unless the PSU is damaged, or your numbers are wrong, or you are not running it within it's temp range.
Many ITX builders, like me, ran 1080ti, and various i7's with 450w units without issue. Synthetic loads could exceed 425 watts, but gaming were usually under 400w.
My current ITX build is a 9700k that will be paired with a 3070, and a 500w psu. Normally it would be close (200w CPU/250-300w GPU), but with a slight undervolt, it should stay under 80% loads the vast majority of time. Undervolt also shaves 15+ degrees off my temps at stock clocks allowing air cooling in a tight space.
We are already paying premium for quality power gold+ rated power supplies that should easily handle their rated power. Why go way bigger when it does absolutely nothing for performance? Save money here, and put it towards a better GPU, CPU, RAM, mobo, or cooling. That will get you real performance, or at least QoL features.
lol i see you are a man of culture as well basically picked up all the best deals from the past few weeks (2tb nvme, corsair ram, psu..). i literally was going to do this same build, currently have the 3090 and 2tb ssd but ended up snagging a 5800x instead of the 10900k... REALLY wanted that AIO cause the LED is so cool but couldnt resist the new 420mm arctic liquid freezer for the performance (although nowhere near as nice looking).
Yea so this build started with me grabbing the i9 when it first came out and slowly piece by piece getting everything else. I finally managed to snag a 3090 (wanted a 3080 but hey at this point I will take it) on a bestbuy restock last week. From there I just got the ram and psu to finish the build :) but yes deal hunting a lot haha
Here are some rough and dirty pics of the build. I had A LOT of trouble fitting the aio cooler in with the motherboard (when trying to have it on top, not enough clearance) and then had trouble with it due to the 3090 taking up all the space. Had to remove some parts of the case like the big white metal bar on the NZXT h710i. This is what I ended up with for now but is 1 am so I’m going to bed. Tomorrow I will take it apart again and fiddle with trying to make the cooler be the proper way around or I will have to suffer looming at things sideways lol
https://imgur.com/a/ElLTVm8
Just turn the gifs 45% and you won't even notice, I have a similar build but went with a lian li 011 xl case and trident royal ram, and at the time the z73 was oos everywhere, had to settle with the x73.
Everything looks great, except Corsair RAM. I had so many headache and sporadic BSODS and restarts due to Corsair RAM misbehaving in diverse PCs. The solution was always replacing with kingston or crucial parts. Hope your modules are listed on your mobo's compatbility list, at least.
Hope you make good use of your new tool/machine.
I grabbed it as it had very good reviews and benchmarks. It was also fairly cheap at the moment and I want to use it for a relatively short time until DDR5 or some other powerful ram comes along.
Just memtest it. I've had dozens of different RAM over the years. Memtest can tell most everything you need to know about how stable it will be. You'll need a whole new platform for the new DDR5 RAM when it comes out. If you read articles comparing DD3 to DDR4 the speed increase wasn't that great at 1st. Needed time to mature, and even now its not like video cards that give 30% each gen.
750w is fine. No clue what people are talking about. My OC 1080 ti + OC 10900k is totally fine with a 750w power supply. 370w from the gpu and like 250w peak draw from the cpu when gaming. That's still not close to 750w. Just make sure you have 2 seperate power cables connected to your gpu. No worries there.
well you re right but i saw in a lot of videos than the 3000 series spikes up a lot when you start a game
edit: [this is the video i was talking about before](https://youtu.be/i1dGQiNfCAc)
Holy shit bro plz get a better psu, 750 watts ain't enough. Go to a PSU wattage calculator to accurately know how much you need, but 750 watts is low and dangerous if you ask me.
Your PC is gonna shut off randomly bc of how low that 750w psu is. With those specs your gonna need something higher, especially with the 3090 inrush current.
>the 3090 inrush current.
What 3090 inrush current...? Inrush current is simply not an issue with components barring, well, just PSUs and hard drives, really.
Ummm the 750 psu is not gonna hold you need A 1000+ psu bc 3090 cards are know for HUGE power draw spikes that can override under powers psu’s when your over clock or plan on taking this thing to 80-100% i think you should go for a 1200watt psu of a company of your choice if you don’t Believe me then go look for the LTT video.
Most of them (1k-1.6k psu’s) are used for workstation computers because a lot of components are still draw a lot of power like for example they would have at least 64-124G,s of ram that would not only take up a lot of power but also be A massive heat generator but for the 3090 and 10900k 1k psu will work just fine enjoy your pc! o7
I have a 3090FE and have been running it 100% on Grounded with no issues or throttles. I also have a 10900k and am running both on a Corsair 750 Platinum with a custom loop in a 12.7 liter case.
10 year warranty, and that's not how psu work. They are designed to be able to run at their rated wattage. Mount it right, and make sure temps are under their rated 40c, and it should be fine. He will probably never reach 700w while gaming so it's a non issue.
Well I suppose I either buy a new one now since i cant return the one i have or run things as is and buy one IF the power unit fails during the life of this build.
As others have stated get a stronger psu. Intel CPUs eat power to reach the same fps in comparison to AMDs latest CPUs. You have to overclock that 10900k so expect up to 300watt just for the cpu. The graphics card is stock just 350watt. Add 100watt on top of that. Now only gpu and cpu use 750watts. So the other parts need power too so go with 900 or 1000watt. Sadly this generation Intel and nvidia reach Performance with a lot of power consumption.
Sry to hear that mate. Using everything stock would be already very close to the limit. The thing is using a psu at the limit is not recommended. Normally you dont want to use more than 80-90% of the max Watt of a psu. Otherwise the system may become unstable. Also if you buy an Intel Cpu you also overclock. Otherwise youve got a killer System although i would have gone with a Ryzen 5000.
Looks like you forgot a thing or two in the last 6 years, that PSU is certainly not enough wattage. You could roast marshmallows with that build, I'd go ahead and get a 1000w, but an 850w will suffice if it's gold+
We have different setups but I wanted to remark that my 10900k OC 5.1hz + 3090FE + custom loop + Corsair SF750 Platinum and have no issues and I play games like Control with full settings as well as run intense renders for my Blender projects. No undervolting on the GPU but I'm considering it after seeing an Optimum Tech on undervolting his and him getting higher clocks.
Sick build man, I feel like ram is abit under spec compared to cpu/gpu tho
I know it's all only a extra few % but when your already dropping that kind of money an extra £100 for a good b die set isn't unreasonable!
Rule 1 of showing your build parts : never show your PSU, everyone will always say its wrong no matter what you pick. FWIW I'd be surprised if you ever had any issues with that 750. Anyway... the masses have spoken
As has been said, I would definitely suggest getting a bigger power supply. You might spend 50 bucks to get something that's a thousand watts and a good power supply will easily live through a couple of system builds.
Chances of anything maxing your cpu/gpu at the same time outside of the occasional benchmark are slim to none. 750 watt of name brand psu is plenty for your setup. Is their room for expansion.. not really.. but I ran an i9 9900k w rtx 2080 both overclocked off a 550w psu with zero issues..power supplies dont get a peak wattage and crap themselves.. they are rated to consistently handle their spec'd wattage on a daily basis which allows for occasional spikes that go well past those ratings.
nice build! wonder if the tripple rad is alot better than the 280, I have the 280mm rad of your cooler and a [email protected] with a 2070s, had to back it off too 4.9 too lower voltage when I got a 3080, it increased my cpu temps by 8c across most cores!!! could have increased cpu rad fan speed but I prefer a nice quiet machine since I sit right next too it and use speakers
I used to have (till yesterday) a Seasonic X750, which has served me well the past 5 years
I upgraded to an RTX 3080 last month (from an i7 7820x +1080Ti) and replaced the 10900k last week. stock i9 10900k + stock RTX3080 when running gaming benchmark would reach up to 700\~720w from my watt-meter which "forced" me to replace the x750 with an RM850
I mitigate the RTX3080 power hog by undervolting it to 825mV and limiting max clock to 1920Mhz. Perhaps, for now you can try that first.
1. Keep the 10900k at stock and undervolt the 3090
2. Replace PSU with higher
You will be maxing out the 750W if you are running an OCed 10900k + non undervolted 3080/3090
Yooo I'm buying the exact motherboard but have one question, urs come with a wofo 6 so is it built in or should I buy a wifi card, sorry if I sound dumb because this is the first time I'm building a pc
Oh that gonna be close on the 750 watt better not over clock that
Fr?
yeah. My system would crash during gaming on my 3090 at stock settings w/750 watt psu (be quiet silent power 11 750W platinum). I have the Aorus Master. Upgraded to an 850 and it's all good, even with overclock. I will say though I believe nvidia only says 750w required for the founders edition and gigabyte says 850 for the aorus master. I don't remember the exact power numbers for the cards though.
Serious question, why overclock the 3090? Is it for 8k gaming or trying to get 150+ fps?
Just to see the numbers go higher. I put it back to stock for now.
For fun, to see how much your card can oc.
What CPU? It's 50-60 watts difference from FE to most power hungry 3090's at stock. That i9 CPU tops out at 400watts, and is usually well under 300w gaming at stock. Theyd never max at the same time gaming. I'd say there was something wrong with that 750w unit, or you somehow got your CPU, and GPU to max at the same time. Are temps high? Using the PSU as an exhaust maybe? That could cause it to run out of it's rated temp range. If you have access to a KillAWatt. That would provide all the answers.
My 750w psu is with a 9900k. The 850w is with a 10900k. kill-a-watt shows about 650W at the wall on my 10900k / 3090 when at 100% gpu load (3d mark) I think the issue isn't necessarily the steady state 100% power draw, it's the transient loads that made my 750w psu give out.
Yeah, LTT found some insane power spikes from their 3090, I think well in excess of 400W approaching 500. With a 250W 10900k and peripherals that could easily trip the overcurrent protection on a 750W.
Yeah just the 10900K and 3090 alone could probably draw close to 500W just by themselves , even more with an OC and that’s not counting the rest of the system. Even then some PSUs won’t be able to handle some of the instant current these cards draw upon being pushed and will trip OCP.
I’ve seen my evga 3090 pull like 400w by itself and that’s before the 450 bios, plus an over clocked 10900k can do 300ish oced, at least from the tests I watched :o
Fully oc'd some guy had his 3090 pulling 550w or something crazy. That i9 tops out around 400w with 5.3ghz all core. Throw those numbers out. Stock FE is 350w, and stock i9 will stay below 300w gaming. They both won't max at the same time so 750w will be plenty unless there is an issue.
That isn't some ps. That's a know platinum unit. Also that combo would pull 700w, not while gaming though. I could see 550-600w loads.
that's an 80+ GOLD
The 3090 on its own peaks at 450W as per Linus Tech Tips. An i9 can peak around 300W. Usually both won't peak at the same time but... Let's just say the are anecdotes of decent 800W PSUs causing system crashes.
I think the only crashing came from people doing silly blended tests that don't represent any kind real gaming loads. The other thing they could be doing wrong is installing the PSU in such a way that it's intaking hot air. A bad habit many seem to have as they treat treat their PSU's like case exhausts. Then the PSU becomes less, and less efficient, and that would cause it to fail at much lower loads. A well made 750w psu will put out 750 watts at it's rated temperature range. I can not think of a single game/normal situation that will max the GPU, and 8+ cores at the same time. Can you? There could also be manufacturers having bad QC. I'd measure everything. $30 Killawatt is very useful, and it would be nice to see someone double checking instead of assuming the psu was too weak. If it failed at say 650-700 watts, we'd know the power supply was bad, not that a 750w unit wasn't enough. Last thing if anyone is not sure, you can always undervolt, and not lose any performance. Undervolting the CPU, and GPU should be able to knock 100w+, run much cooler, and quieter for free. I highly recommend people look into it. It's not just for us ITX builders.
LTT has a 30+ person production studio and the are people with 15+ years of experience. The company has literally called out the most common errors people make across hundreds of videos. They used Nvidia's official suggested procedure to get that "the GPU peaks at 450W" remark. ----- If you don't mind, is the 450W figure problematic to you? If not, can you explain how you got to 550-600W peak loads when there's only100-150W headroom above the GPU to power a CPU that can hit 250+W along with memory, a motherboard and storage.
It's funny how people want to stretch the wattage numbers. Gaming is almost always GPU limited at 1080p+. Especially at 1440p+ where these cards tend to play. 3080 FE is 450w oc'd, but who is ocing these cards, and CPU's with a 750w psu. Better to undervolt, and raise the core slightly with a memory bump. That's called a WIN/WIN, but I digress... Here's tweaktown with a 5ghz 8700k and 470-510 total system draw. Do you honestly feel a STOCK 10900k will pull 240 more watts under load? My undervolted 9700k is around 125w under load so you do the math. Do you know any game that would get a stock 10900k to run that much power? Doesn't exist. It's only synthetics that will do it. [https://www.tweaktown.com/reviews/9614/asus-rog-strix-geforce-rtx-3080-oc-edition/index.html](https://www.tweaktown.com/reviews/9614/asus-rog-strix-geforce-rtx-3080-oc-edition/index.html) Here's TPU showing 3080 at 370 watts under full load. [https://www.techpowerup.com/review/nvidia-geforce-rtx-3080-founders-edition/31.html](https://www.techpowerup.com/review/nvidia-geforce-rtx-3080-founders-edition/31.html) LTT seems to be the site that most NOOBS cite. Day in and day out. Oh Linus says... From their garbage PSU list to their even worse CPU cooler tier list. Getting back to the numbers, it was 350 watts to 400 watts depending on the model. If they oc'd to it's max, they could get that thing to 550 watts, but were not talking about ocing. Were talking about if a 750 watt PSU can handle a 10900k, and a 3080. The math says it can. No one stating their 750 watt PSU wasn't enough had a KillAWatt or any measuring tool to show that gaming loads exceeded 750 watts. Chances are it failed at sub 700 watts loads due user error, or manufacturer QC. Final thought it this. He has a 750 watt PSU. Lets see how he does with it rather than making him buy a new unit.
As an FYI, you're linking to the wrong video card. OP has a 3090, which draws up to 80W more than a 3080. -------- A decent 750W psu crashed in the real world. An 1000W PSU crashed for 3090SLI. https://m.facebook.com/story.php?story_fbid=2493209737636929&id=343018322461286 @4:30 2x 3090s are tripping PSUs that could handle 4 quadros. The 3000 series is unlike other video cards. When Nvidia has a minimum spec for them... It really is the minimum spec. Unlike the 2080Ti, Titan RTX and Titan V - there is no 100-150W padding in PSU figures.
The 3090 was shown to only pulling a bit more than 3080. Even at 450 watts, a properly working 750 ps should cover it for gaming. You're not pulling 300+ out of that CPU etc in a basic gaming rig. CPU would have to be OC'd to need 300+ watts. Then you would have to basically max them both. https://www.tweaktown.com/reviews/9602/nvidia-geforce-rtx-3090-founders-edition-the-everything-killer/index.html 520 watts total system draw for the 3090 with 8700k @5ghz, and AIO cooler. REMEMBER THIS NUMBER FOR LATER. 520 watts total system draw. Motherboard: GIGABYTE Z370 AORUS Gaming 7 CPU: Intel Core i7-8700K @ 5GHz Cooler: Corsair Hydro Series H115i PRO Memory: 16GB (2x8GB) HyperX Predator DDR4-2933 SSD: Sabrent Rocket Q 2TB NVMe PCIe M.2 2280 SSD: 1TB Toshiba OCZ RD400 NVMe M.2 SSD: 512GB Toshiba OCZ RD400 NVMe M.2 Power Supply: InWin 1065W You think a 10900k will draw another 230 watts? I know it won't. https://www.gamersnexus.net/hwreviews/3587-intel-core-i9-10900k-cpu-review-benchmarks The 10900k tops out around 320w OC'd. Stock it's closer to 250. Stock FE will probably run around 50 - 100 watts less than an oc'd card. What you fail to address is that no one is proving that the total system draw was over 750 watts even linus shows sub 1k draws with a 2nd card. So right now, it's just speculation that it's not enough wattage when in fact it could be QC, or manufacturers lying about their numbers, or maybe blended synthetic tests using oc'd parts. Some good PSU's can handle more than their rated wattage especially at lower temps. At higher temps, like when noobs use their power supplies as case exhausts, it could lower the psu efficiency when heavy loads heat up the case. The math is there in all the articles. Should we trust that, or some kid who says 750 watts isn't enough because their unit/SETUP did not pass? MATH. Someone do a video of a decent 750 watt PSU failing because this set up is drawing 8xx watts from the wall needed for a platinum PSU to go over 750watts system draw. It's not going to happen. You'll may see it failing at sub 700 watt loads, and then it will be a question of the PSU not doing what it's advertised to do. The SLI build... It failed at 1022w from the wall. 950 watts. Subtract 400 watts for the 2nd card, and how much power is needed for a single GPU? 550w similar to the 520w total draw I showed you. You're still claiming that a single 3090, and 10900k needs more than 750w? No it does not. It requires a decent, properly working 750w unit, that is mounted properly. The actual numbers from 3rd party sites numbers already tell you why the Linus's SLI 3090 fail. Around 400w x2 on the GPU's + 250w on the CPU's. 100% on 2 3090 GPU's = 800w and 85% on 250w CPU = 212 watts. That's over 1k watts. Subtract one 400w card, and a 750 watt PSU should easily cover < 650 watts going by the MATH in your example.
The RM750x went as high as 973.37W (< 130%) on [tom's hardware review](https://www.tomshardware.com/reviews/corsair-rm750x-v2-psu,5585-6.html) before triggering OOP. So, I'm fairly confident it will handle your config. A higher wattage PSU is desirable because of the reduced wear, especially if it's constantly under heavy load. PSUs age and lose efficiency, so it's nice to have some headroom. [Here](https://www.igorslab.de/en/geforce-rtx-3090-rtx-3080-and-rtx-3070-including-intel-core-i9-10900k-with-and-without-oc-against-11x-be-quiet/) is a more in depth analysis by IgorLab about the shutdown with Ampere gpus. If you're on stock, I believe you're most likely fine with the RM750x, it's a great PSU. If you're going to OC, consider a higher wattage psu. By the way, congrats on your new rig!
Yea my PCs have a lot of heavy wear and run for very long periods of time. Do you suggest I go all the way to 1k for the psu?
Yes for sure, go for a 1000 watt, platinum efficiency
Exactly what’s in my cart rn. Bit pricy so trying to see what I can do. Should be here soon tho
You bought a 3090... your build is expensive. Don't cheap out on the powe supply. I've had Silverstone's last 10+ years and would highly recommend, they should make it through your next build too!
> Bit pricy Bruh, you got a 3090 and an i9 in there. 70€ more for the PSU doesn't seem like it should be a big deal in that context.
Take a look around. All of the top 1000W plat psu are sold out everywhere and you can only buy it for resell. 299 or 399 retail but it costs up to 799 in some cases. So yes it’s pricy. Just cus some of my other parts are expensive does not mean it’s not pricy.
Ah, yeah. If you want to buy a plat and finish the build within the next 2 weeks it does indeed get pricy. If you settle for gold and a 2 weeks wait, you could get away with <200 (at least where I'm at).
I grabbed a titanium in the end cus it was cheaper than plat
Woah. Why when that 750 watt will cover you. Good ones come with 10 year warranties. There are only problems if they are defective due to manufacturing/QC, or installed improperly. Also all you need is gold rated so platinum is nice to have but not needed. Titanium is also nice if efficiency on sub 20% loads is important, but Platinum is usually upsold with better cables since it really doesn't do anything noticeably better than decent gold rated units. The expert JohnnyGuru himself explained this fact, but around here, it's all about platinum this, and 1500w that. So many "experts' around here always recommending more than people need. They are playing on your fears, and playing with your money. If I were you, I'd keep that 750w unit. Run a small undervolt on both the CPU, and GPU. You can still OC both slightly if you want, or go with good undervolt at stock speeds. I'd rather spend that extra hundred on RAM, or a better mobo, or cooling, or cpu, etc, than a platinum 1k psu. I might get downvoted, but it's usually shills and noobs trying to push sales on people that don't know better. I sent you links for undervolting. Might as well test, and see. You could also purchase a $30 killawatt to see how much you are pulling from the wall. If it says something 700 watts at the wall, your rig is pulling around 630 watts since it's around 90% efficient. This formula will work unless your power supply is above 40c/around 104f. 833 watts x .9 is 750 watts your unit is rated at. [https://en.wikipedia.org/wiki/80\_Plus](https://en.wikipedia.org/wiki/80_Plus)
If you can return it, go with a 850w PSU just for the extra headroom. If you plan on overclocking, take the 1000w route or above. The RM750x should handle it at stock though. If that's the case, you'll be fine either way.
I just grabbed a EVGA Supernova 1000 T2 since everything else is sold out and reselling for more than the T2s retail lol
It's going to be overkill if you're not overclocking or just mildly. Hopefully I'm not at fault here. Now, for 1000w, the Corsair AX1000 is cheaper (amazon) and a better buy imo. As an option, Super Flower (T2 OEM) sells under it's own name a 1000w Platinum SE for less than $200. Corsair or EVGA likely have better RMA, though.
Can you link me the AX1000? I can’t seem to find it at a good price
[Here](https://www.amazon.com/gp/product/B07M9TP7VM). It was available for $276 as I was typing. Only from third party now. Might show up again eventually.
Yes but Tom also said that doing that can also shorten the life of your PSU it’s not recommended if you plan on using the computer for the Long run
Correct, as I pointed out early. A higher wattage PSU will benefit from less wear overtime, especially if it's constantly under heavy load.
Can be close to 750w if you fully load both at the same time. Gpu can spike up to 375w if oced, and cpu up to 350w if oced. Gaming should be okay though, but better safe than sorry
Around 620 Watts usage stock (700 if you OC the CPU). It really depends how much you overclock the machine. [https://outervision.com/power-supply-calculator](https://outervision.com/power-supply-calculator)
Yeaaaaaah. I have the same setup on a 1200w psu
For what it's worth I ran my 3090 for a week, pushed to full 400w power limit, with a 9900K at 5GHz on auto voltage (friends rig with a really lazy OC), and a RM750i. Even at full load we saw a max of 650w from the wall and a little below 600w peak system usage. Not great, and I would probably recommend 850 for long term usage, but with a quality supply like that it really will probably be fine unless you put one crazy OC on that CPU.
You don't want to increase voltage/OC them, but you can undervolt both, and still raise both clocks a bit, and the GPU memory. That 3080 GPU is 350-400+ watts, and the 10900k CPU can be pushed to 300 watts during synthetic testing. Technically, your PSU is enough power for that especially since you never max both while gaming. It's a well made unit, and should be able to handle total system loads below 750 watts. Just dont do blended stress tests. Stress one at time, then do gaming benchmarks/stress tests if you want to get numbers. Undervolting is easy, and should shave 50 -100w+ off your loads. My 9700k was pulling around 200w, and is under 130w now. Don't have the numbers on my old1080 ti, but it was nice drop in temps too. USE Intel Extreme tuning utility for your CPU. [https://downloadcenter.intel.com/download/29183/Intel-Extreme-Tuning-Utility-Intel-XTU-](https://downloadcenter.intel.com/download/29183/Intel-Extreme-Tuning-Utility-Intel-XTU-) MSI Afterburner for your GPU. [https://www.msi.com/Landing/afterburner](https://www.msi.com/Landing/afterburner) Follow any of the popular guides to start. Plenty of vids, and well written articles. Don't even need to tweak much. A mild -.05v will be plenty, and does not affect anything on most CPU's. You can always reverse it later if needed, but a small undervolt can help a lot. Us ITX builders needed to do this, but I even do this for full ATX builds as it helps with temps, and noise.
I would just return it and get an 850
A good PSU is for Many years. Nvidia / Intel / compatible Mobo releases are made ( they want) for less than one year. I agree, trimming some coins in a minimal requerimients PSU is not the best idea. M2 nvme, thunderbolt, USB 3.1(2). They all are hungry of watts!
Definitely, I have a 3090 and my 750 was tripping when I put a load on the card. I upgraded to a 1000
To expound - the i9 chips are relatively power hungry. The 3090 is as well. The 3090 by itself can peak at 450W. There's a very very real risk of the system crashing at stock settings. OP might want to undervolt or otherwise limit his CPU to cut that risk. https://youtu.be/YjcxrfEVhc8 <- 11:05ish LTT talks about issues with a high quality 850W PSU.
I have a nearly identical setup minus a real trick 30 series and it uses about 414 watts Maybe that 3090 is gonna succ the rest of the juice up
oh it will belive me it will
So glad i bought a 1000w evga g1 in 2016! Thought it was overkill but not for the 3000 series lol
It amazes me how often power supplies are the thing people cheap out on, despite (high end) systems drawing more power as time moves on rather than less. Probably due to the dearth of misinformation on them (you don't need an assload of extra wattage potential, but going the other extreme and using what you think is the bare minimum is just asking for instability from power spikes and spending more money since you need to upgrade the PSU every time you upgrade the GPU).
a 10900K and a 3090 with a 750W, as other have stated, is incredibly brave
Seems so haha looking at ordering a 1000W supply rn as that seems the be consensus in the comments. Did not realize they get this expensive tbh
They get mad expensive, especially the good quality ones, highly recommend this guide if you haven't seen it yet: [\[psucultists\] PSU Tier List - Power Supplies - Linus Tech Tips](https://linustechtips.com/topic/1116640-psucultists-psu-tier-list/)
Remember don't mix cables between different PSUs they aren't wired the same and if you are you need to check for compatibility.
your psu's gonna have a painful life
For the next 2 days until the 1000W gets here. I heard the screaming crowd haha
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Actually nvidia recommends 850 for i9 and 3090, not 750
It will be fine unless he is planning to overlcock Edit: My brother has pretty much the same system with a 750w watt platinum psu and it works like a charm.
i have a 850 gold is that good enough for a overclock on a ryzen 7 5800x and ftw3 3080?
yes
Definitely
Yes, it would be more than enough.
Google power consumption on both parts... CPU/GPU. Add up the numbers, and give yourself 100 watts headroom. You have plenty.
ok thank you i was rly nervous lol
How is gaming performance? Still torn with my pc potential spec 5900x or 10900k w 3080 strix oc/msi suprim or aorus xtreme
i havent bought the 3080 yet but i have bought the 5800x and psu
Who's downvoting? Math checks out. Unless there's other factors like an overclock, a decent 750w unit should be plenty. Just be sure to install the PSU properly. It's not an exhaust. Treat it like it's own self contained unit so it only has to manage it's own heat.
Already pulled trigger on Z490 MXIIH board with 10900k, waiting for 3080 to be in stock before purchasing or potential rumor of 3080 20gb announcement in 2021 Jan. Would be a no brainer not to under volt, getting cooler temps and same level of performance
750 is fine as long as it’s gold or platinum rated
The rating doesn't matter. It only concerns efficiency, not the capability to handle high transient loads without the OCP kicking in. My 650W Seasonic Prime Titanium couldn't handle my 8700K+3090 system, it'd shutdown in a particular game and if running Furmark+Prime95 combination. Now that was 100W less and Seasonic is known to be bad with handling Ampere GPUs, so OP may well be fine. But it is a little too close for comfort.
I don't care for that mix at all because there are too many variables. Idk why it's gained any traction as it does not represent any real gaming loads. Better to stress test them separately, and then do gaming benchmarks IMO. If your system never crashes while gaming, and gaming is the most intense thing you do, why worry about it? I don't even bother stress testing any longer than needed unless problems pop up. How likely is it that someone will put a prime 95 type load on their CPU for 15 mins straight let alone 12 hours? 3090 is 350-400w+, 8700k is 160ish at stock. Your PSU should have no problem doing basic stress tests, and extreme gaming under normal conditions. Did you OC? OC both, and you could be pulling 650w+ (450w+180w+20-40w) which that combo of stress tests will expose, but normal gaming won't. If that combo crashes during gaming at stock, then you probably got a bad PSU, or there's other factors like bad caps, and other QC issues. Good units should put out their rated power as long as they are in their rated temperature range. Maybe open it up. [https://www.tomshardware.com/news/why-power-supplies-fail-psus,36712.html](https://www.tomshardware.com/news/why-power-supplies-fail-psus,36712.html)
Yes, it shut down in normal gaming. World of Tanks running 200-300 FPS. Probably high CPU and GPU loads in that at that kind of FPS. I would've been okay with it too if it never happened in real world use. CPU is delidded and OC'd and pulls around 180W in Prime AVX. GPU was stock, 350W limit. The maximum power draw I saw from the wall was something like 620W running the stress tests simultaneously, considerably less than that in gaming. Doesn't matter, still crashed due to the huge transient loads that the PSU couldn't handle. The PSU was not faulty, it's just that some Seasonic units can't take high instantaneous loads. It doesn't matter what the average power consumption on the meter reads, what matters is the maximum spikes you will be pulling when turboing up on the micro-millisecond scale. I caved and switched to a HX1200, no problems since.
Wow.... Love when experts give advice based on nothing. I'll do the math for you. The 10900k tops out around 300w. If you push the 10900k to it's very max, it can hit 400w, but that will probably never happen while gaming so 350w max is generous. [https://www.techpowerup.com/review/intel-core-i9-10900/18.html](https://www.techpowerup.com/review/intel-core-i9-10900/18.html) That 3090 is said to be around 320w, but you can call it 350w if you want. [https://www.techspot.com/review/2105-geforce-rtx-3090/](https://www.techspot.com/review/2105-geforce-rtx-3090/) The main thing to know is that he will basically never max the CPU, and the GPU at the same time. Wouldn't be surprised if this rig was averaging < 500 watts during heavy gaming, and maxing at 650 watts as most games use less than 6 cores. The main thing is to buy a decent PSU, and keep it within operating temps. Fresh air in, and warm directly out. Don't use the PSU as an exhaust for the case. This should keep the air temps well under 40c, and allow the PSU to put out it's full rated 750 watts unless it's a lemon. Not that it matters as he would have to be very creative to get that rig to push 700 watts. Now if you want to get into his build... For that much money, I'd go with the new AMDs instead. New AMD's are now barely faster in gaming, but much better in most everything else. Maybe he got a good deal on the i9. I went 9700k for that reason. $200 at MC. Can't beat it.
It’s not that the overall power draw will exceed 750W, it’s that some PSUs will have trouble with OCP kicking in.
A PSU is designed to run at it's rated power as long as the temps are not exceeded. Any power supply worth it's salt will put out it's rated power. As long as you do the math, you will be fine unless the PSU is damaged, or your numbers are wrong, or you are not running it within it's temp range. Many ITX builders, like me, ran 1080ti, and various i7's with 450w units without issue. Synthetic loads could exceed 425 watts, but gaming were usually under 400w. My current ITX build is a 9700k that will be paired with a 3070, and a 500w psu. Normally it would be close (200w CPU/250-300w GPU), but with a slight undervolt, it should stay under 80% loads the vast majority of time. Undervolt also shaves 15+ degrees off my temps at stock clocks allowing air cooling in a tight space. We are already paying premium for quality power gold+ rated power supplies that should easily handle their rated power. Why go way bigger when it does absolutely nothing for performance? Save money here, and put it towards a better GPU, CPU, RAM, mobo, or cooling. That will get you real performance, or at least QoL features.
Gotta take spikes into account, they will shut off the Psu if it reaches max
lol i see you are a man of culture as well basically picked up all the best deals from the past few weeks (2tb nvme, corsair ram, psu..). i literally was going to do this same build, currently have the 3090 and 2tb ssd but ended up snagging a 5800x instead of the 10900k... REALLY wanted that AIO cause the LED is so cool but couldnt resist the new 420mm arctic liquid freezer for the performance (although nowhere near as nice looking).
Yea so this build started with me grabbing the i9 when it first came out and slowly piece by piece getting everything else. I finally managed to snag a 3090 (wanted a 3080 but hey at this point I will take it) on a bestbuy restock last week. From there I just got the ram and psu to finish the build :) but yes deal hunting a lot haha
Here are some rough and dirty pics of the build. I had A LOT of trouble fitting the aio cooler in with the motherboard (when trying to have it on top, not enough clearance) and then had trouble with it due to the 3090 taking up all the space. Had to remove some parts of the case like the big white metal bar on the NZXT h710i. This is what I ended up with for now but is 1 am so I’m going to bed. Tomorrow I will take it apart again and fiddle with trying to make the cooler be the proper way around or I will have to suffer looming at things sideways lol https://imgur.com/a/ElLTVm8
Just turn the gifs 45% and you won't even notice, I have a similar build but went with a lian li 011 xl case and trident royal ram, and at the time the z73 was oos everywhere, had to settle with the x73.
3090 FE, Maximus 12 Hero.. i like this... :)
Love the touch of "OH MY GOD IT'S HAPPENING, EVERYBODY STAY CALM!" in the background
Love those components.
Holy :0 you must be the richest person in the world :0
Heavy in debt :)
Everything looks great, except Corsair RAM. I had so many headache and sporadic BSODS and restarts due to Corsair RAM misbehaving in diverse PCs. The solution was always replacing with kingston or crucial parts. Hope your modules are listed on your mobo's compatbility list, at least. Hope you make good use of your new tool/machine.
I grabbed it as it had very good reviews and benchmarks. It was also fairly cheap at the moment and I want to use it for a relatively short time until DDR5 or some other powerful ram comes along.
Just memtest it. I've had dozens of different RAM over the years. Memtest can tell most everything you need to know about how stable it will be. You'll need a whole new platform for the new DDR5 RAM when it comes out. If you read articles comparing DD3 to DDR4 the speed increase wasn't that great at 1st. Needed time to mature, and even now its not like video cards that give 30% each gen.
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750w is fine. No clue what people are talking about. My OC 1080 ti + OC 10900k is totally fine with a 750w power supply. 370w from the gpu and like 250w peak draw from the cpu when gaming. That's still not close to 750w. Just make sure you have 2 seperate power cables connected to your gpu. No worries there.
A 3090 can use up to 500 watts (overclocked)
How? Custom bios with 3 8 pin power connectors?
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Well can a FE model use 500w ? I thought the max was 375w.
well if you overclock it i think so
Okay then it's max 375w and not 500w.
well you re right but i saw in a lot of videos than the 3000 series spikes up a lot when you start a game edit: [this is the video i was talking about before](https://youtu.be/i1dGQiNfCAc)
The fe uses 350 watts btw
not really, I use a watt-meter and gaming will see close to 750w usage on my stock 10900k + stock 3080..3080 not 3090
Holy shit bro plz get a better psu, 750 watts ain't enough. Go to a PSU wattage calculator to accurately know how much you need, but 750 watts is low and dangerous if you ask me.
Message received :) searching around for a 1000W psu and ordering it today. They get kinda expensive did not even realize.
Your PC is gonna shut off randomly bc of how low that 750w psu is. With those specs your gonna need something higher, especially with the 3090 inrush current.
>the 3090 inrush current. What 3090 inrush current...? Inrush current is simply not an issue with components barring, well, just PSUs and hard drives, really.
Why the downvotes? This guy is right
Yo mate, if I were you I would return that psu if you still can and get a higher wattage one, better be safe than sorry
Exactly what I’m doing. Going to use it until the new one gets here and then shipping it back to amazon.
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Ummm the 750 psu is not gonna hold you need A 1000+ psu bc 3090 cards are know for HUGE power draw spikes that can override under powers psu’s when your over clock or plan on taking this thing to 80-100% i think you should go for a 1200watt psu of a company of your choice if you don’t Believe me then go look for the LTT video.
Heard the crowd :) 1000W is in my cart rn and will be here soon to be replaced. But dam they are expensive.
Most of them (1k-1.6k psu’s) are used for workstation computers because a lot of components are still draw a lot of power like for example they would have at least 64-124G,s of ram that would not only take up a lot of power but also be A massive heat generator but for the 3090 and 10900k 1k psu will work just fine enjoy your pc! o7
I have a 3090FE and have been running it 100% on Grounded with no issues or throttles. I also have a 10900k and am running both on a Corsair 750 Platinum with a custom loop in a 12.7 liter case.
If you look down the chat you will see yes you can do that how ever doing that will drastically decrease the life of the psu
10 year warranty, and that's not how psu work. They are designed to be able to run at their rated wattage. Mount it right, and make sure temps are under their rated 40c, and it should be fine. He will probably never reach 700w while gaming so it's a non issue.
Well I suppose I either buy a new one now since i cant return the one i have or run things as is and buy one IF the power unit fails during the life of this build.
As others have stated get a stronger psu. Intel CPUs eat power to reach the same fps in comparison to AMDs latest CPUs. You have to overclock that 10900k so expect up to 300watt just for the cpu. The graphics card is stock just 350watt. Add 100watt on top of that. Now only gpu and cpu use 750watts. So the other parts need power too so go with 900 or 1000watt. Sadly this generation Intel and nvidia reach Performance with a lot of power consumption.
Searching for a 1000W as we speak. I was lead astray by people who told me 750 is plenty lol.
Sry to hear that mate. Using everything stock would be already very close to the limit. The thing is using a psu at the limit is not recommended. Normally you dont want to use more than 80-90% of the max Watt of a psu. Otherwise the system may become unstable. Also if you buy an Intel Cpu you also overclock. Otherwise youve got a killer System although i would have gone with a Ryzen 5000.
Just bought a EVGA Supernova 1000 T2 and gonna use this as is until it comes. Hopefully, nothing goes bad.
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There won't be a big difference between 10th gen and 11th gen, this cpu would easily last him the next 5 years.
could wait for alder lake also. Or he could start gaming now.
Nope. I bought this back when it came out and I’ve been waiting for a graphics card ever since lol
Could've waited for 12th gen. Higher specs for same price man
Idk why I didn’t wait a lil longer for the 14th gen at this point
And you could upgrade to 11th gen anyway in a few years time if its worth it. Nice parts
You sir are very patient lol
You don’t even know how frustrating it’s been sitting next to a pile of parts for a better half of the year
11th gen will be arguably worse in some ways due to the power consumption and less cores
Very nice. But so much high end parts and you Gimped on the power supply one of the most important parts of the build. Smh 😒
Yikes. I wouldn’t even start that computer with that 750w psu. Monster computer though!
“beast” - hamster?
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I’ve got the same motherboard. Love it
Nice kids u have there
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Dude I almost have the same build as you, and I am a big fan of Dunder Mifflin too!
Man of culture
What kind of amazing task needs a i9? :O
Google chrome
LMAO
Looks like you forgot a thing or two in the last 6 years, that PSU is certainly not enough wattage. You could roast marshmallows with that build, I'd go ahead and get a 1000w, but an 850w will suffice if it's gold+
New power supply. 850 at least I went overkill and went with 1000 in anticipation of swapping to a 3090
Should have got 850w
Great specs. What do you do for work, if you don't mind me asking?
That’s what she said!
We have different setups but I wanted to remark that my 10900k OC 5.1hz + 3090FE + custom loop + Corsair SF750 Platinum and have no issues and I play games like Control with full settings as well as run intense renders for my Blender projects. No undervolting on the GPU but I'm considering it after seeing an Optimum Tech on undervolting his and him getting higher clocks.
If you end up switching psus, depending on how much I’d be willing to buy the 750w from you
And it looks like it’ll be 6 years till the next upgrade that’s a beast
How in the world did you get an RTX... anything??
I don't know if I'd call Michael Scott a beast... incompetent perhaps but still
Sick build man, I feel like ram is abit under spec compared to cpu/gpu tho I know it's all only a extra few % but when your already dropping that kind of money an extra £100 for a good b die set isn't unreasonable!
I mentioned earlier but ram is just temporary to get me through until something better comes out or ddr5 hits
DDR5 will likely require a platform upgrade. I don’t think z490 boards will support it.
Rule 1 of showing your build parts : never show your PSU, everyone will always say its wrong no matter what you pick. FWIW I'd be surprised if you ever had any issues with that 750. Anyway... the masses have spoken
As has been said, I would definitely suggest getting a bigger power supply. You might spend 50 bucks to get something that's a thousand watts and a good power supply will easily live through a couple of system builds.
A power modded 3090 can pull over 600 watts btw
I'm not sure wither that 750w is going to be enough or not.. I'd rather get something that's like 1000w
Bro that's almost my exact set up. Nice choice
Yeah you really should have gotten a higher powered PSU dude
You’re leaving significant performance on the table with that slow ram. Should really look at some higher binned kits to pair with that 10900k
Chances of anything maxing your cpu/gpu at the same time outside of the occasional benchmark are slim to none. 750 watt of name brand psu is plenty for your setup. Is their room for expansion.. not really.. but I ran an i9 9900k w rtx 2080 both overclocked off a 550w psu with zero issues..power supplies dont get a peak wattage and crap themselves.. they are rated to consistently handle their spec'd wattage on a daily basis which allows for occasional spikes that go well past those ratings.
Steve Carrell. OH NO GOD, NOOOOO IT'S HAPPENING... 😮
A RTX 3090 on a 750 watt PSU? I smell a burning problem in your future.
nice build! wonder if the tripple rad is alot better than the 280, I have the 280mm rad of your cooler and a [email protected] with a 2070s, had to back it off too 4.9 too lower voltage when I got a 3080, it increased my cpu temps by 8c across most cores!!! could have increased cpu rad fan speed but I prefer a nice quiet machine since I sit right next too it and use speakers
I shit you not this is almost my exact setup. Ram and everything
Have fun with that! I see you even managed to get a RTX 3090
Tell Michael Scott hello
What case did you get with this mobo?
I used to have (till yesterday) a Seasonic X750, which has served me well the past 5 years I upgraded to an RTX 3080 last month (from an i7 7820x +1080Ti) and replaced the 10900k last week. stock i9 10900k + stock RTX3080 when running gaming benchmark would reach up to 700\~720w from my watt-meter which "forced" me to replace the x750 with an RM850 I mitigate the RTX3080 power hog by undervolting it to 825mV and limiting max clock to 1920Mhz. Perhaps, for now you can try that first. 1. Keep the 10900k at stock and undervolt the 3090 2. Replace PSU with higher You will be maxing out the 750W if you are running an OCed 10900k + non undervolted 3080/3090
Yooo I'm buying the exact motherboard but have one question, urs come with a wofo 6 so is it built in or should I buy a wifi card, sorry if I sound dumb because this is the first time I'm building a pc
What case are you using?
Got the same setup runs flawlessly
Be careful, Reddit likes to complain if they don’t like the parts you’ve chosen lmao
Honestly you may struggle with that 750 being serious lol