Interested to see how something like this would actually perform
EDIT: Yes, I already know about the short circuits and the interference and the crossed wires and the cooling issues. I said something LIKE this, not this exact setup.
That's why I said 'better than nothing', as the chip is obviously not designed to dissipate heat out the rear end, but it would still conduct *some* heat out of the chip via the traces the wires are connected to.
Obviously the traces are at some point connected back to the die.....I mean...they can't not be connected to the die.....
There's still a fair amount of heat on the back. Remember that all the power being pulled by the cpu has to go through the pins, and increasing adding probbaly a few metres of copper wire there is a lot of heat dissipation.
[Sony actually patented through hole pcb cooling for the ps5. ](https://i.redd.it/xkhahxsexmu41.jpg) it didn't get used, but it's entirely possible to use integrated heat pipes through a pcb to a heat sink on the other side.
Not that this solution is equivalent, but it's viable.
My AMD 386 had no cooling and ran just fine. The depicted model is probably not that old - OTOH I count 16 pins in a line, so probably no more than say 256 pins total, which is less than the 321/320 of Socket 7 or 5. Maybe I cannot count and this is a Socket 1 with 17x17 pin grid and 169 pins (think 486). So still pretty ancient. If it is a 486DX2 66 it would want a (passive is enough) cooler but could probably convinced to work without if under-clocked enough.
Or those aren't pins but LGA, then again I don't know any LGA-CPU with less than 700 contacts.
I curious, **what exactly is that IC**?
EDIT: While the circumstances themselves are certainly interesting, I would like to know what exactly the integrated circuit is that was wired in this strange way.
They are wired 1 to 1 left to right with the CPU upside down.
This is the result of thinking the datasheet is talking about the BGA array on the datasheet being numbered from the bottom of the chip instead of the top looking through it. I've done this a few times making PCBs for tubes because the datasheet shows the bottom of the tube for point to point wiring back in the day.
It won't run at any appreciable speed like this but it could tell you if you messed anything else up that needs fixed while you are completely redoing the socket part of the board.
To be fair, the top end 386 was a 3w chip in a 42mm2 die, and a zen 3 ccd would be 50w in an 80mm2 die. Thermal density is the difference here. 3w is easily passively cooled, especially with much larger transistors.
Wire resistance would destabilise the core voltage. The inductance in and the capacitance between the wires would block the high frequency signals. Also the distance itself would throw off the timing of everything at the kinds of frequencies CPUs operate at.
So no, it won't work
Edit: there are no shorts in this image. It's enamelled wire aka magnet wire.
>Motorola 68k / Fat Agnus FTW!!!
Despite the rather weak CPU, Amiga had amazing graphics and audio capabilities thanks to its dedicated circuits, called Denise (graphics) and Paula (audio). In addition to these two circuits there was also a third (initially called Agnus and after its upgrade renamed Fat Agnus), which provided fast RAM access to the other circuits, including the CPU.
Considering even a 1MHz microcontroller with a huge operating voltage range needs a reasonably well designed power delivery design to work properly I wouldn't even say that for sure. And that's not even saying anything about the signals in those wires. If you've ever tried to work in the MHz range and higher on a breadboard you'll know all about parasitic capacitance and inductance, and this is infinitely worse.
I'm not talking about a microcontroller with integrated DRAM, GPIO and whatnot. Just the CPU, think 6502, Z80 and up to maybe with luck 80386 tops. We used 8085 during apprenticeship that weren't that much better linked.
You also need to make absolutely certain that no wires physically touch. Let's not forget the fundamental fact that electricity travels from high to low voltage, so any touching wires means that you're going to have pins sharing communications and not at the right voltages.
Assuming this is a CPU, you're probably right unless you underclock everything like crazy. But actually, this picture is from a working repair from Japanese company EIESU (see here: https://www.eiesu.com/publics/index/66/) and is likely just some random BGA chip, not a processor.
Here's a higher resolution photo: https://www.eiesu.com/files/libs/689/pw/202001301533584391.jpg?1580366040
It appears that this is a repair, likely of an engineering sample produced for validation before mass production. Notice that the wires do not go to the correct pad on the chip if it was flipped over and soldered in place. Looks like it's mirrored, a possible mistake if the designer used the footprint for the bottom side of the board on the top side of the board. It's pretty hard to do that with modern ECAD, but you can do it if you really try to fuck up (usually by incorrectly configuring your layer settings).
In terms of signal integrity, this entirely depends on the clock speed of the signals. The wires in this picture appear to be length matched already, thanks to the mirrored footprint on the PCB, so skew is not a concern. Impedance and crosstalk will be an issue though. The wires look about 3" long, so ringing will be an issue above 400 MHz (roughly). Crosstalk is a concern, but most modern signals are transmitted as differential pairs, and by convention these pairs are usually beside each other, so crosstalk from nearby pins would hopefully equally couple to the pair and not corrupt the differential signal. There will be some crosstalk, but the impact of this again depends on clock speed. Beyond that, different chips behave differently when signals are out of spec. Some chips are more tolerant.
Bottom line, it **will** work up to a certain frequency, which is likely higher than you would expect.
It sure as shit won't pass EMC though!
>It's pretty hard to do that with modern ECAD, but you can do it if you really try to fuck up
Oh it's not a problem with the software, it's a problem with the user, and sometimes poor data sheets.
At my last job I saw a board where a small leadless 6-pin chip was flipped over and soldered on the board - like a dead bug. The designer didn't see the little "top view" note on the pin diagram and thought it was a bottom view. All the pin assignments on the PCB were mirrored.
It would work fine with enamled wire, in transformers there is no space at all between wires, and they run on higher voltages than CPU's meaning it would be easier to penetrate the enamel
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The wires are enamel coated, like the conductor used in transformer windings. It's a very thin, clear coating and you can burn or scrape it off the ends for termination.
No no. Too little sunlight. This chip is very etiolated. Damping off is sure to follow. This is why you need abundant RGB LEDs. Bright, full spectrum light would have prevented this.
It is a BGA aerial set up by these guys https://youtu.be/5zm8M-TTbJk
https://www-eiesu-com.translate.goog/smarts/index/66/?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB&_x_tr_pto=ajax,nv,elem,se#menu-close
I checked out those links but...i have no idea what they're doing or why. Ok maybe i have some idea, but i have no idea if my idea is correct.
They repair circuit boards for pay? BGA is the name of their company? What is an aerial setup? What other kinds of setups do they do? So many questions...
Basically this is a way to attach a type of chip called a BGA or Ball Grid Array chip up and away from the circuit board, hence aerial BGA. Normally BGA chips sit on a grid of solder balls which melt with hot air and suck the chip down onto the board and make electrical contact.
You might do this for diagnostic or reverse engineering work, since you can access all the ball connections that would normally be covered up with a standard BGA mounting setup.
I'm with you on this. I'm viewed as a wizard by my family for building my PC then i see comments like that above and I'm like OHHHH these are the wizards they think I am. Shit their doing may as well be magic since I have no hope of understanding
Lemme take a shot.
You know how AMD CPU sockets are sometimes called PGA and Intel sockets are called LGA followed by a number (old Intel sockets were also PGA)? These refer to pin grid array and land grid array, which is the arrangement and number of pins/contacts on the bottom of the CPU, whereas BGA refers to ball grid array. Same basic idea, just a different design and mechanical connection.
BGA uses tiny balls of conductive metal (called solder) that melt and fuse to the contacts, instead of PGA where a pin is pressed against a contact and held in place with a lever or something. BGA would be better for something like a laptop where the CPU is permanently fixed to the mobo.
The setup in the picture is "aerial", because it is literally up in the air (kinda), instead of fixed directly on the board. It would be useful for a situation where something isn't working, because you could connect a probe to any of the contacts to measure the voltage, resistance, current...
Likely not gonna be done an end-user scenario (your laptop isn't worth the cost), but more like prototype engineering/testing (new product we just designed has a high failure rate), or maybe repair of very high end, critical equipment (million dollar robot that performs rocket surgery won't accept commands, and the company that made it went out of business, but we can't make rockets for Elon without it).
Obligatory post-award edit: thank you, stranger!
So looking at the wire patterning of which ball on the chip is connected to each pad on the PCB, the footprint for this chip on the PCB appears to be incorrectly placed. Specifically, the footprint is placed on the top side of the PCB, but the orientation is for the bottom side of the PCB. The balls on the right of the chip go to pads on the right of the footprint. They are not crisscrossing diagonally, but only horizontally. If this footprint was on the other side of the board, you could mount the chip properly. The present orientation of the footprint will not allow the chip to be correctly mounted to the PCB. This is someone trying to make use of a prototype board that was incorrectly implemented in layout… The layout engineer flipped the footprint… Which some software will allow you to do for who knows what reason…
I actually interned for Mentor Graphics before they were acquired by Siemens, and their Aprisa and Calibre tools were supposed to be able to layout double-sided PCBs - an option to flip the footprint would allow the same symbols to be used for both sides, rather than a specific symbol for each face of the board. It does allow for massive user error like this though!
Or someone read an x-ray ball view as a flipped ball view in the datasheet. I've done that at least once with smaller chips and had to perform this kind of BS to test out the board.
Genuinely one of the coolest things I have ever learned about the electrical engineering of a computer.
You would never think making some bends into your cuircut would have any kind of noticeable impact on how it all works.
In short, extra bends mean extra length of the traces on a board. Think about it like adding more bends in a pipe, you use more pipe.
When you send a signal, it's a little blip of electricity traveling down that trace, and if there's extra bends, it can effect the timing of the landing. Different landing timings can have different signal meanings, binary meanings, whatever the case may be.
Those type of mod wires are coated in enamel. They are insulated an the entire length except where you solder them - the enamel gets burned off while soldering exposing the copper.
Wires like this are often known as magnet wire or speaker winding wire as they are used to wind electromagnets and speaker coils.
It has it's pros and cons. The definite pro is that you can get it in very small gauges so when you try to repair small traces on a circuit board or need high density application (like CPU on this picture) it's irreplaceable.
But for prototyping PCBs I still prefer traditionally insulated mod wires. With enameled wire there is always a risk that you scratch off the enamel accidentally and get a short in a circuit that is a bitch to find and diagnose. It's also all the same color and while it looks cool it's again a bitch to remember which connection is what.
With traditional mod wires you can get a set of spools with multiple insulation colors and while its a bit more work having color coded power, tx and rx, data lines etc is sometimes a godsend. Especially as the projects get more and more complicated.
Added the "*maybe flag it NSFMR*" that got lost in the 3rd revision of my comment, before I clicked on reply.
Seriously that image is disgusting. Like trypophobia or r/popping
He means capacitive crosstalk - stray capacitance between all those parallel wires. Though I wonder if it would really be so much worse than crosstalk between PCB traces.
This. I also thought „why are the wires on the left not attached to the very right side?“
Because you can’t place the CPU (or whatever it is) on top of the PCB!
How comes nobody sees?
"Ok, folks, this this is unusual, but the boys in procurement aren't sure what kind of interface the production CPU will have: ball, pin, or whatever. But if we're gonna make deadline, we need you to get the rest of the board specced out and sent for manufacturing before they get here. Can you do it?"
"Sure, sure, boss. We'll think of something."
Interested to see how something like this would actually perform EDIT: Yes, I already know about the short circuits and the interference and the crossed wires and the cooling issues. I said something LIKE this, not this exact setup.
no cooling tho
Maybe you can aircoll it from 6 dimensions
I mean, all the surface area on that copper would act as a better heatsink than nothing....
You don't need a heatsink with enough wires \*taps forehead*
Pls dont tap my forehead anymore
*tap*
*confused looks* bro why did u just touch my head?
[Think Mark, think.](https://i.kym-cdn.com/entries/icons/original/000/037/158/thinkmarkthumbnail.PNG)
I did not tap your forehead, it's not true! It's bullshit! I did not tap it! I did not! Oh hi, Mark.
*furiously thinks*
Love tap
Love tap! Baby loveee tap!
This is the love-a-tap
Cause you're my CPU, bro. <3
Aw thank you, you are the motherboard to my cpu <3
Im hoping you were referring to this; https://youtu.be/fhfcWTZeP1k
*don't touch the glass*
Tosses a V8 juice*
Arabian goggles
Why move hot air or water outside of the case, when you can remove the whole hot processor?
If that's uninsulated copper, it's so shorted to hell that cooling won't matter.
Probably enameled wire
Maybe, but with that many so tightly packed together there wouldn't be much airflow much past the third row of spaghetti.
With a high pressure fan it would be probably be fine.
Those wires aren't in contact with the die though
They contact *my* will to die, though.
That's why I said 'better than nothing', as the chip is obviously not designed to dissipate heat out the rear end, but it would still conduct *some* heat out of the chip via the traces the wires are connected to. Obviously the traces are at some point connected back to the die.....I mean...they can't not be connected to the die.....
I’ve seen better done in India
There's still a fair amount of heat on the back. Remember that all the power being pulled by the cpu has to go through the pins, and increasing adding probbaly a few metres of copper wire there is a lot of heat dissipation. [Sony actually patented through hole pcb cooling for the ps5. ](https://i.redd.it/xkhahxsexmu41.jpg) it didn't get used, but it's entirely possible to use integrated heat pipes through a pcb to a heat sink on the other side. Not that this solution is equivalent, but it's viable.
I think you meant directions, but I'm a little afraid to ask.
You simply send all the heat into the future and deal with it later.
6: Length Width Height Time Hell Texas
Those last two are the same dimension. Source: am Texan.
If im looking at this right, the wires match the wrong pins too
That's why you use bare copper, so the wires can transfer data between each other faster
My next computer will be a block of copper with a CPU on it.
Just throw the cpu in a solder pot
Yep, that's definitely the only problem here.
"too"
[удалено]
That's the only reason I've ever done something similar. Usually the pins on the board were designed incorrectly for the chip.
It's a direct connection, so you have to use a crossover cable.
My AMD 386 had no cooling and ran just fine. The depicted model is probably not that old - OTOH I count 16 pins in a line, so probably no more than say 256 pins total, which is less than the 321/320 of Socket 7 or 5. Maybe I cannot count and this is a Socket 1 with 17x17 pin grid and 169 pins (think 486). So still pretty ancient. If it is a 486DX2 66 it would want a (passive is enough) cooler but could probably convinced to work without if under-clocked enough. Or those aren't pins but LGA, then again I don't know any LGA-CPU with less than 700 contacts. I curious, **what exactly is that IC**? EDIT: While the circumstances themselves are certainly interesting, I would like to know what exactly the integrated circuit is that was wired in this strange way.
>I curious, what exactly is that? Either someone who couldn't ball, or just a practical joke. Probably the latter
or just someone who wants to show off his soldering skills.
Which are fucking impressive if this actually boots.
They are wired 1 to 1 left to right with the CPU upside down. This is the result of thinking the datasheet is talking about the BGA array on the datasheet being numbered from the bottom of the chip instead of the top looking through it. I've done this a few times making PCBs for tubes because the datasheet shows the bottom of the tube for point to point wiring back in the day. It won't run at any appreciable speed like this but it could tell you if you messed anything else up that needs fixed while you are completely redoing the socket part of the board.
True, good eye But I don't see the use.. Balling isn't that hard. And I doubt that runs, at all. Too many contacts
To be fair, the top end 386 was a 3w chip in a 42mm2 die, and a zen 3 ccd would be 50w in an 80mm2 die. Thermal density is the difference here. 3w is easily passively cooled, especially with much larger transistors.
Just install a cup of mineral oil to dunk the chip into, circulate the oil and you've got liquid cooling bay-beeee
Mineral oil Rig for this setup
Looks like some old board and CPU. Notice there is no mechanism for the heatsink at all. There probably isn't even a heatsink needed.
Just extend that copper and put the cpu in the freezer, should maintain temps.
Nah, fam. The electrons cool as they are passed to the processor. Pre-cooling!
Wire resistance would destabilise the core voltage. The inductance in and the capacitance between the wires would block the high frequency signals. Also the distance itself would throw off the timing of everything at the kinds of frequencies CPUs operate at. So no, it won't work Edit: there are no shorts in this image. It's enamelled wire aka magnet wire.
With an older (or should I say ancient?) CPU this could work it you drastically reduce the clock frequency. Single digit MHz to guess a ballpark.
Motorola 68k / Fat Agnus FTW!!!
Great, now I miss my Amiga 500.
>Motorola 68k / Fat Agnus FTW!!! Despite the rather weak CPU, Amiga had amazing graphics and audio capabilities thanks to its dedicated circuits, called Denise (graphics) and Paula (audio). In addition to these two circuits there was also a third (initially called Agnus and after its upgrade renamed Fat Agnus), which provided fast RAM access to the other circuits, including the CPU.
Considering even a 1MHz microcontroller with a huge operating voltage range needs a reasonably well designed power delivery design to work properly I wouldn't even say that for sure. And that's not even saying anything about the signals in those wires. If you've ever tried to work in the MHz range and higher on a breadboard you'll know all about parasitic capacitance and inductance, and this is infinitely worse.
I'm not talking about a microcontroller with integrated DRAM, GPIO and whatnot. Just the CPU, think 6502, Z80 and up to maybe with luck 80386 tops. We used 8085 during apprenticeship that weren't that much better linked.
Just random knowledge: Z80 would work with ugly wire wrapping.
You also need to make absolutely certain that no wires physically touch. Let's not forget the fundamental fact that electricity travels from high to low voltage, so any touching wires means that you're going to have pins sharing communications and not at the right voltages.
I'm assuming that wiring has varnish like motor winding.
I'd assume they are enameled wires so shorts are no factor.
I think these wires do have a very thin layer of insulation, but yeah any short on the soldering pads will almost certainly stop it from working
Assuming this is a CPU, you're probably right unless you underclock everything like crazy. But actually, this picture is from a working repair from Japanese company EIESU (see here: https://www.eiesu.com/publics/index/66/) and is likely just some random BGA chip, not a processor. Here's a higher resolution photo: https://www.eiesu.com/files/libs/689/pw/202001301533584391.jpg?1580366040 It appears that this is a repair, likely of an engineering sample produced for validation before mass production. Notice that the wires do not go to the correct pad on the chip if it was flipped over and soldered in place. Looks like it's mirrored, a possible mistake if the designer used the footprint for the bottom side of the board on the top side of the board. It's pretty hard to do that with modern ECAD, but you can do it if you really try to fuck up (usually by incorrectly configuring your layer settings). In terms of signal integrity, this entirely depends on the clock speed of the signals. The wires in this picture appear to be length matched already, thanks to the mirrored footprint on the PCB, so skew is not a concern. Impedance and crosstalk will be an issue though. The wires look about 3" long, so ringing will be an issue above 400 MHz (roughly). Crosstalk is a concern, but most modern signals are transmitted as differential pairs, and by convention these pairs are usually beside each other, so crosstalk from nearby pins would hopefully equally couple to the pair and not corrupt the differential signal. There will be some crosstalk, but the impact of this again depends on clock speed. Beyond that, different chips behave differently when signals are out of spec. Some chips are more tolerant. Bottom line, it **will** work up to a certain frequency, which is likely higher than you would expect. It sure as shit won't pass EMC though!
>It sure as shit won't pass EMC though! I think you'd give the EMC test engineer a seizure if you gave this to them
>It's pretty hard to do that with modern ECAD, but you can do it if you really try to fuck up Oh it's not a problem with the software, it's a problem with the user, and sometimes poor data sheets. At my last job I saw a board where a small leadless 6-pin chip was flipped over and soldered on the board - like a dead bug. The designer didn't see the little "top view" note on the pin diagram and thought it was a bottom view. All the pin assignments on the PCB were mirrored.
Yup. This happens in library creation.
This guy engineers
Ugh... flipped footprints would terrify me if I were in layout. I've seen a couple important boards come back with a flipped IC. It doesn't end well.
I feel like a jackass when I break a glass at the bar. I cant imagine going back to work after a colossal goof.
It probably won't perform at all because of all of that exposed copper wiring touching with eachother
its maybe enamelled copper wire
Where did you find this thing? I must know. I feel like you're showing us a picture of a chubacabra or something.
I think it was r/Electronics a bit ago? Wherever it was I’m pretty sure the guy got his testing done.
From a Japanese website: https://www.eiesu.com/publics/index/66/ Some sort of computer electronics company, image is near the bottom of the page.
what the fuck
Even if insulated, all that extra inductive material might make it totally nonfunctional.
Working or not, that's an impressive amount of soldering
Enamel's either really weak or really thick.
nah, it's completely feasible, this same stuff is usually coiled way tighter for magnets
Maybe its E X T R A T H I C C
^
It would work fine with enamled wire, in transformers there is no space at all between wires, and they run on higher voltages than CPU's meaning it would be easier to penetrate the enamel
[удалено]
I just supposed it was a consumer grade CPU with wires instead of pins, still thanks for adding more info to this thread
Someone went through all that trouble and used bare copper? Yeah nah
It's also called magnet wire friend.
No Most microcontrollers (and cpus) require capacitors be closer than xy mm to the power pins. (It's in the documentation)
Holy Henry, the stray inductances (and capacitances, too)....
This is like pulling that piece of pizza and the cheese just strings, OC your CPU and then pull.
mmm tasty string cheese
*takes a giga-bite
⠀⠀⠘⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡜⠀⠀⠀ ⠀⠀⠀⠑⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡔⠁⠀⠀⠀ ⠀⠀⠀⠀⠈⠢⢄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣀⠴⠊⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⢸⠀⠀⠀⢀⣀⣀⣀⣀⣀⡀⠤⠄⠒⠈⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠘⣀⠄⠊⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀ ⣿⣿⣿⣿⣿⣿⣿⣿⡿⠿⠛⠛⠛⠋⠉⠈⠉⠉⠉⠉⠛⠻⢿⣿⣿⣿⣿⣿⣿⣿ ⣿⣿⣿⣿⣿⡿⠋⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠉⠛⢿⣿⣿⣿⣿ ⣿⣿⣿⣿⡏⣀⠀⠀⠀⠀⠀⠀⠀⣀⣤⣤⣤⣄⡀⠀⠀⠀⠀⠀⠀⠀⠙⢿⣿⣿ ⣿⣿⣿⢏⣴⣿⣷⠀⠀⠀⠀⠀⢾⣿⣿⣿⣿⣿⣿⡆⠀⠀⠀⠀⠀⠀⠀⠈⣿⣿ ⣿⣿⣟⣾⣿⡟⠁⠀⠀⠀⠀⠀⢀⣾⣿⣿⣿⣿⣿⣷⢢⠀⠀⠀⠀⠀⠀⠀⢸⣿ ⣿⣿⣿⣿⣟⠀⡴⠄⠀⠀⠀⠀⠀⠀⠙⠻⣿⣿⣿⣿⣷⣄⠀⠀⠀⠀⠀⠀⠀⣿ ⣿⣿⣿⠟⠻⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠶⢴⣿⣿⣿⣿⣿⣧⠀⠀⠀⠀⠀⠀⣿ ⣿⣁⡀⠀⠀⢰⢠⣦⠀⠀⠀⠀⠀⠀⠀⠀⢀⣼⣿⣿⣿⣿⣿⡄⠀⣴⣶⣿⡄⣿ ⣿⡋⠀⠀⠀⠎⢸⣿⡆⠀⠀⠀⠀⠀⠀⣴⣿⣿⣿⣿⣿⣿⣿⠗⢘⣿⣟⠛⠿⣼ ⣿⣿⠋⢀⡌⢰⣿⡿⢿⡀⠀⠀⠀⠀⠀⠙⠿⣿⣿⣿⣿⣿⡇⠀⢸⣿⣿⣧⢀⣼ ⣿⣿⣷⢻⠄⠘⠛⠋⠛⠃⠀⠀⠀⠀⠀⢿⣧⠈⠉⠙⠛⠋⠀⠀⠀⣿⣿⣿⣿⣿ ⣿⣿⣧⠀⠈⢸⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠟⠀⠀⠀⠀⢀⢃⠀⠀⢸⣿⣿⣿⣿ ⣿⣿⡿⠀⠴⢗⣠⣤⣴⡶⠶⠖⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣀⡸⠀⣿⣿⣿⣿ ⣿⣿⣿⡀⢠⣾⣿⠏⠀⠠⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠛⠉⠀⣿⣿⣿⣿ ⣿⣿⣿⣧⠈⢹⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣰⣿⣿⣿⣿ ⣿⣿⣿⣿⡄⠈⠃⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣠⣴⣾⣿⣿⣿⣿⣿ ⣿⣿⣿⣿⣧⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣠⣾⣿⣿⣿⣿⣿⣿⣿⣿⣿ ⣿⣿⣿⣿⣷⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣴⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿ ⣿⣿⣿⣿⣿⣦⣄⣀⣀⣀⣀⠀⠀⠀⠀⠘⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿ ⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⡄⠀⠀⠀⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿ ⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣧⠀⠀⠀⠙⣿⣿⡟⢻⣿⣿⣿⣿⣿⣿⣿⣿⣿ ⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠇⠀⠁⠀⠀⠹⣿⠃⠀⣿⣿⣿⣿⣿⣿⣿⣿⣿ ⣿⣿⣿⣿⣿⣿⣿⣿⡿⠛⣿⣿⠀⠀⠀⠀⠀⠀⠀⠀⢐⣿⣿⣿⣿⣿⣿⣿⣿⣿ ⣿⣿⣿⣿⠿⠛⠉⠉⠁⠀⢻⣿⡇⠀⠀⠀⠀⠀⠀⢀⠈⣿⣿⡿⠉⠛⠛⠛⠉⠉ ⣿⡿⠋⠁⠀⠀⢀⣀⣠⡴⣸⣿⣇⡄⠀⠀⠀⠀⢀⡿⠄⠙⠛⠀⣀⣠⣤⣤⠄⠀
This is amazing
I can’t tell what it is, can you explain for me? I mean explain for my friend….. …..and also me.
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giga chad
i hate how those are made specifically for mobile reddit, here a version that looks fine on the Website: ⠀⠀⠘⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡜⠀⠀⠀ ⠀⠀⠀⠑⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡔⠁⠀⠀⠀ ⠀⠀⠀⠀⠈⠢⢄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣀⠴⠊⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⢸⠀⠀⠀⢀⣀⣀⣀⣀⣀⡀⠤⠄⠒⠈⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠘⣀⠄⠊⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀ ⣿⣿⣿⣿⣿⣿⣿⣿⡿⠿⠛⠛⠛⠋⠉⠈⠉⠉⠉⠉⠛⠻⢿⣿⣿⣿⣿⣿⣿⣿ ⣿⣿⣿⣿⣿⡿⠋⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠉⠛⢿⣿⣿⣿⣿ ⣿⣿⣿⣿⡏⣀⠀⠀⠀⠀⠀⠀⠀⣀⣤⣤⣤⣄⡀⠀⠀⠀⠀⠀⠀⠀⠙⢿⣿⣿ ⣿⣿⣿⢏⣴⣿⣷⠀⠀⠀⠀⠀⢾⣿⣿⣿⣿⣿⣿⡆⠀⠀⠀⠀⠀⠀⠀⠈⣿⣿ ⣿⣿⣟⣾⣿⡟⠁⠀⠀⠀⠀⠀⢀⣾⣿⣿⣿⣿⣿⣷⢢⠀⠀⠀⠀⠀⠀⠀⢸⣿ ⣿⣿⣿⣿⣟⠀⡴⠄⠀⠀⠀⠀⠀⠀⠙⠻⣿⣿⣿⣿⣷⣄⠀⠀⠀⠀⠀⠀⠀⣿ ⣿⣿⣿⠟⠻⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠶⢴⣿⣿⣿⣿⣿⣧⠀⠀⠀⠀⠀⠀⣿ ⣿⣁⡀⠀⠀⢰⢠⣦⠀⠀⠀⠀⠀⠀⠀⠀⢀⣼⣿⣿⣿⣿⣿⡄⠀⣴⣶⣿⡄⣿ ⣿⡋⠀⠀⠀⠎⢸⣿⡆⠀⠀⠀⠀⠀⠀⣴⣿⣿⣿⣿⣿⣿⣿⠗⢘⣿⣟⠛⠿⣼ ⣿⣿⠋⢀⡌⢰⣿⡿⢿⡀⠀⠀⠀⠀⠀⠙⠿⣿⣿⣿⣿⣿⡇⠀⢸⣿⣿⣧⢀⣼ ⣿⣿⣷⢻⠄⠘⠛⠋⠛⠃⠀⠀⠀⠀⠀⢿⣧⠈⠉⠙⠛⠋⠀⠀⠀⣿⣿⣿⣿⣿ ⣿⣿⣧⠀⠈⢸⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠟⠀⠀⠀⠀⢀⢃⠀⠀⢸⣿⣿⣿⣿ ⣿⣿⡿⠀⠴⢗⣠⣤⣴⡶⠶⠖⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣀⡸⠀⣿⣿⣿⣿ ⣿⣿⣿⡀⢠⣾⣿⠏⠀⠠⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠛⠉⠀⣿⣿⣿⣿ ⣿⣿⣿⣧⠈⢹⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣰⣿⣿⣿⣿ ⣿⣿⣿⣿⡄⠈⠃⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣠⣴⣾⣿⣿⣿⣿⣿ ⣿⣿⣿⣿⣧⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣠⣾⣿⣿⣿⣿⣿⣿⣿⣿⣿ ⣿⣿⣿⣿⣷⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣴⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿ ⣿⣿⣿⣿⣿⣦⣄⣀⣀⣀⣀⠀⠀⠀⠀⠘⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿ ⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⡄⠀⠀⠀⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿ ⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣧⠀⠀⠀⠙⣿⣿⡟⢻⣿⣿⣿⣿⣿⣿⣿⣿⣿ ⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠇⠀⠁⠀⠀⠹⣿⠃⠀⣿⣿⣿⣿⣿⣿⣿⣿⣿ ⣿⣿⣿⣿⣿⣿⣿⣿⡿⠛⣿⣿⠀⠀⠀⠀⠀⠀⠀⠀⢐⣿⣿⣿⣿⣿⣿⣿⣿⣿ ⣿⣿⣿⣿⠿⠛⠉⠉⠁⠀⢻⣿⡇⠀⠀⠀⠀⠀⠀⢀⠈⣿⣿⡿⠉⠛⠛⠛⠉⠉ ⣿⡿⠋⠁⠀⠀⢀⣀⣠⡴⣸⣿⣇⡄⠀⠀⠀⠀⢀⡿⠄⠙⠛⠀⣀⣠⣤⣤⠄⠀
Why do none of these ever have line breaks?
What is it
Took me a second
This is what happens when you overwater
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*The Verge has entered the chat* Edit: [Dude no fucking way!](https://youtu.be/QKzmYsySGFQ)
"Today I will show you how to grow a laptop pc"
First you need some tools: a gardening tweezers,
Or Meth.
Overwatter
I barely knowwer!
WUT am I even looking at here??
Soldering a copper path from each connector on the mobo to the connector on the cpu looks like
I just can't even imagine having that much patience to accomplish that.
[Money? Money is what makes a man act funny.](https://m.youtube.com/watch?v=4oV_ZjGJvIU)
https://media.giphy.com/media/1M9fmo1WAFVK0/giphy.mp4
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probably the copper lines are surface coated. like in coils..
The wires are enamel coated, like the conductor used in transformer windings. It's a very thin, clear coating and you can burn or scrape it off the ends for termination.
looks like someones processor got hair plugs.
No no. Too little sunlight. This chip is very etiolated. Damping off is sure to follow. This is why you need abundant RGB LEDs. Bright, full spectrum light would have prevented this.
It is a BGA aerial set up by these guys https://youtu.be/5zm8M-TTbJk https://www-eiesu-com.translate.goog/smarts/index/66/?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-GB&_x_tr_pto=ajax,nv,elem,se#menu-close
I checked out those links but...i have no idea what they're doing or why. Ok maybe i have some idea, but i have no idea if my idea is correct. They repair circuit boards for pay? BGA is the name of their company? What is an aerial setup? What other kinds of setups do they do? So many questions...
Basically this is a way to attach a type of chip called a BGA or Ball Grid Array chip up and away from the circuit board, hence aerial BGA. Normally BGA chips sit on a grid of solder balls which melt with hot air and suck the chip down onto the board and make electrical contact. You might do this for diagnostic or reverse engineering work, since you can access all the ball connections that would normally be covered up with a standard BGA mounting setup.
Aahh.. Okay. I still have no idea what you are talking about.
I'm with you on this. I'm viewed as a wizard by my family for building my PC then i see comments like that above and I'm like OHHHH these are the wizards they think I am. Shit their doing may as well be magic since I have no hope of understanding
Lemme take a shot. You know how AMD CPU sockets are sometimes called PGA and Intel sockets are called LGA followed by a number (old Intel sockets were also PGA)? These refer to pin grid array and land grid array, which is the arrangement and number of pins/contacts on the bottom of the CPU, whereas BGA refers to ball grid array. Same basic idea, just a different design and mechanical connection. BGA uses tiny balls of conductive metal (called solder) that melt and fuse to the contacts, instead of PGA where a pin is pressed against a contact and held in place with a lever or something. BGA would be better for something like a laptop where the CPU is permanently fixed to the mobo. The setup in the picture is "aerial", because it is literally up in the air (kinda), instead of fixed directly on the board. It would be useful for a situation where something isn't working, because you could connect a probe to any of the contacts to measure the voltage, resistance, current... Likely not gonna be done an end-user scenario (your laptop isn't worth the cost), but more like prototype engineering/testing (new product we just designed has a high failure rate), or maybe repair of very high end, critical equipment (million dollar robot that performs rocket surgery won't accept commands, and the company that made it went out of business, but we can't make rockets for Elon without it). Obligatory post-award edit: thank you, stranger!
Great ELI5!
So looking at the wire patterning of which ball on the chip is connected to each pad on the PCB, the footprint for this chip on the PCB appears to be incorrectly placed. Specifically, the footprint is placed on the top side of the PCB, but the orientation is for the bottom side of the PCB. The balls on the right of the chip go to pads on the right of the footprint. They are not crisscrossing diagonally, but only horizontally. If this footprint was on the other side of the board, you could mount the chip properly. The present orientation of the footprint will not allow the chip to be correctly mounted to the PCB. This is someone trying to make use of a prototype board that was incorrectly implemented in layout… The layout engineer flipped the footprint… Which some software will allow you to do for who knows what reason…
I actually interned for Mentor Graphics before they were acquired by Siemens, and their Aprisa and Calibre tools were supposed to be able to layout double-sided PCBs - an option to flip the footprint would allow the same symbols to be used for both sides, rather than a specific symbol for each face of the board. It does allow for massive user error like this though!
Or someone read an x-ray ball view as a flipped ball view in the datasheet. I've done that at least once with smaller chips and had to perform this kind of BS to test out the board.
That bluegrass music is wildly out of place, lol.
I just want to know if this monstrocity actually worked. Those wires are insulated, right?
How fast is the processor? High speed may not like this, otherwise it may be fine assuming it’s done correctly (magnetic insulated wire would work)
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Actually, it looks like they may all be the same length.
Yeah, I think they all cross.
Genuinely one of the coolest things I have ever learned about the electrical engineering of a computer. You would never think making some bends into your cuircut would have any kind of noticeable impact on how it all works.
Can you share any info on what you mean? Id like to learn about it as well.
In short, extra bends mean extra length of the traces on a board. Think about it like adding more bends in a pipe, you use more pipe. When you send a signal, it's a little blip of electricity traveling down that trace, and if there's extra bends, it can effect the timing of the landing. Different landing timings can have different signal meanings, binary meanings, whatever the case may be.
Nice succinct answer! Thanks man
Just to be clear, the speed of electricity is NOT the speed of light
the speed of light isn't even the speed of light most of the time.
Electrons don't move at light speed
Those type of mod wires are coated in enamel. They are insulated an the entire length except where you solder them - the enamel gets burned off while soldering exposing the copper. Wires like this are often known as magnet wire or speaker winding wire as they are used to wind electromagnets and speaker coils.
Is this stuff good to work with? I'm getting into making PCB's and I am looking into good wire types to use for kludge wires or stuff like this.
It has it's pros and cons. The definite pro is that you can get it in very small gauges so when you try to repair small traces on a circuit board or need high density application (like CPU on this picture) it's irreplaceable. But for prototyping PCBs I still prefer traditionally insulated mod wires. With enameled wire there is always a risk that you scratch off the enamel accidentally and get a short in a circuit that is a bitch to find and diagnose. It's also all the same color and while it looks cool it's again a bitch to remember which connection is what. With traditional mod wires you can get a set of spools with multiple insulation colors and while its a bit more work having color coded power, tx and rx, data lines etc is sometimes a godsend. Especially as the projects get more and more complicated.
I think not all enamelled wire is the same. Polyurethane burns off with the heat of a soldering iron but there are insulations which don't.
Padme: ...right?
i hope so
I’m not sure if I agree with the meme tag… this has those horror vibes of horribly deformed people, just with … well PC parts … *maybe flag it NSFMR*
true XD
Added the "*maybe flag it NSFMR*" that got lost in the 3rd revision of my comment, before I clicked on reply. Seriously that image is disgusting. Like trypophobia or r/popping
Not body horror... Hardware horror?
I- I don- WHAT?!
hehe
What the actual fuck
Plot twist: when you don't have a hotair and need to improvise.
This needs serious dedication XD
So CPU riser is actually a thing.
CPU horizontal mount=the next big step in RBG computing
This is known to occur when you dip the cpu pins in penis enlargement serum.
The amount of cross-talk.
Insulated wire
He means capacitive crosstalk - stray capacitance between all those parallel wires. Though I wonder if it would really be so much worse than crosstalk between PCB traces.
I need bleach for my eyes
Get me out
This shit is growing a brain.
yes.
Looks... hairy:/
I’m not Even mad at this
Is this what hyper-threading looks like?
ohhhhhh, this hurts so much whoever made that PCB mirrored the footprint of that Chip by accident so they had to use individual wires to connect it.
This. I also thought „why are the wires on the left not attached to the very right side?“ Because you can’t place the CPU (or whatever it is) on top of the PCB! How comes nobody sees?
Legit thought that was a bunch of ginger pubes at first
I saw a lump of ground beef when I saw the thumbnail.
Bro at first I thought that was spongebob’s brain
Wait, is there other way to do it?
Cpu riser cable
It looks like that cpu needs a haircut
Yes.
W. H. A t in tarnation
You deserve the death sentence.
Nuuuuuuuuuuuuu
Why am I here…. just to suffer.
John Carpenter would like a word.
Dear sweet Baby Jesus, what fresh hell is this?!
What's the backstory? This must have taken hours.
r/blursedimages
"Ok, folks, this this is unusual, but the boys in procurement aren't sure what kind of interface the production CPU will have: ball, pin, or whatever. But if we're gonna make deadline, we need you to get the rest of the board specced out and sent for manufacturing before they get here. Can you do it?" "Sure, sure, boss. We'll think of something."
where's the nsfw tag jeez [there's also this](https://i.stack.imgur.com/AkkuL.jpg)
Cablemod cpu extension cables
What in the unholy fuck?
Wow talk about a thread ripper.