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2700x - snapped pin, ghetto repair and a lapjob!

Mussels

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Long story short: I lost a pin off my 2700x to some pin goblin, and bought a 3700x.
Then i thought... lets try dumb shit to fix this thing.

Broken pin, which controlled the RAM slots. One of 4 slots worked at 2133Mhz, not fully stable but enough to reach windows.
IMG_20200602_214807_MP (1).jpg


Edit: Missed some photos!

How i fixed the missing pin - i cut the wire out of a spare SATA cable and dropped it into the mobo socket


The SATA cable wire is inside the socket to the top left of the piece of cardboard


Dirty girl needs a good cleaning! that conductonaut has been through hell on a bunch of coolers
IMG_20200609_190512_MP.jpg


IMG_20200609_191335_MP.jpg

IMG_20200609_193328_MP.jpg

IMG_20200609_200909_MP.jpg

IMG_20200609_204721_MP.jpg

IMG_20200609_211832_MP.jpg

IMG_20200609_214403_MP.jpg



4.3Ghz boost (nooooice)


58C max temps in LinpackXtreme benchmark (remember, 10C offset for the other reading)
 
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At least the solder failed for the pin and not the pad, shouldn't be too hard to stick it back on.
 
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Might have missed it, have you tried soldering the pin back on?

Some rosin flux, tweezers, a fine tip soldering iron with some careful work should do the trick. I've done it a few times, successfully. The key is to stay relaxed, take your time and remember that there is no rush. If it doesn't work the first time, clean up and try again.

@Mussels I remember you saying you have no idea where the pin went. Have you looked for a donor pin from another, less valuable AM4 or even AM3/AM2(can't remember if they would fit, but it's worth a look) CPU?
 
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sneekypeet

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I had luck in the past with gold plated craft wire. Just snip a bit a tad longer than the socket height, insert CPU, see if pin makes contact by looking to see if RAM comes back.

This was back in the 939 days, but I don't see any reason why it shouldn't still work.
 
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This is 2020, the stupid pin design should be obsolete. I don't know why AMD won't do it. 3 decades of broken/bent pins isn't enough?
What's the alternative? Bent pins on socket?
 

hat

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Nice work on the lapping. I did my 2600k recently, it was a fun project.
 
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Benchmark Scores Faster than yours... I'd bet on it. :)
Wooooooow... well done!

Did I miss a mention of any temperature drop?
This is 2020, the stupid pin design should be obsolete. I don't know why AMD won't do it. 3 decades of broken/bent pins isn't enough?
Or, it could be a socket full of them which are more easily moved/destroyed. :)
 
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What's the alternative? Bent pins on socket?
PGA has pins on both the cpu and in the socket so your even more likely to damage a PGA socket than an LGA one especially if your cpu(s) have had their pins re-straightened.
 

Toothless

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This wasn't the kind of lapjob I was thinking of, still satisfying.
 

Mussels

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had around a 20C drop, the CPU would flatline at 85 Tctl/75C TDie vs the 68/78 now - its boosting higher due to the lower temps, and running at lower auto fan speeds so its hard to say exactly how much better it is

the pin itself is long gone, it vanished when the CPU was removed to see why my system decided not to POST any more. At a guess the pin fell off in the socket, and fell out into carpet when i was diagnosing.

edit: woops, forgot to show how i ghetto fixed the missing pin. in first post now.
 
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If the pin is not soldered down you may possibly get HR which will make the computer unstable, do random reset or corrupt files. It may seem to work but there is no telling how good a contact the pin is making. Vibration may unsettle it, ie if your playing music with the speakers nearby. Low frequency may unsettle it, ie deep bass.
 
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This is 2020, the stupid pin design should be obsolete. I don't know why AMD won't do it. 3 decades of broken/bent pins isn't enough?
And to what alternative? LGA? Same problems just on the mb. Had this been LGA he'd been screwed.
 

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And to what alternative? LGA? Same problems just on the mb. Had this been LGA he'd been screwed.
Or, it could be a socket full of them which are more easily moved/destroyed. :)
What's the alternative? Bent pins on socket?
Intel MB socket pins design is slightly better but far from being perfect.

Thick rounded socket pins (disc shaped, just like Lego but smaller and with shorter gaps between) will put an end to this bent/broken pins nonsense once and for all.

Sure the processor will be wider, but this will also improve thermal transfer and provide space for additional cores.
 
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And to what alternative? LGA? Same problems just on the mb. Had this been LGA he'd been screwed.
hmmm they could go BGA
 
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Wooooooow... well done!

Did I miss a mention of any temperature drop?
Or, it could be a socket full of them which are more easily moved/destroyed. :)
Agreed - The entire board and all CPUs you'd have for it would be useless, at least with the pins on the CPU it's only the CPU itself affected and frankly there are less incidents with it too that I've ever seen.
BTW I have a board (775 Gigabyte) coming with damaged pins in the socket, if I can't fix it I'll just rob parts from it to fix another one I have with blown MOSFETs.
 
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Have you looked for a donor pin from another, less valuable AM4 or even AM3/AM2(can't remember if they would fit, but it's worth a look) CPU?
The pins on the older CPU’s are longer than the pins for Ryzen. I was surprised how short they are when I first removed the CPU from the clamshell package.
 
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Older CPU pins are also larger in diameter based on the socket it goes to, you'd have to use the right socket/chip to make it work if harvesting a pin from a donor chip.
 
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hmmm they could go BGA
As it turns out, you can convert PGA to BGA. Just de-solder all the pins & replace with balls. Not so sure if it will match the solder pads if you de-solder the socket. You could also leave it "as is" after removing the pins & sand it down to the pads to reveal the copper. Now you have LGA.

This is just crazy modding thou, but I do have such a modding planned. It's coming to "ghetto thread" soon here on TPU.
 
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the pin itself is long gone, it vanished when the CPU was removed to see why my system decided not to POST any more. At a guess the pin fell off in the socket, and fell out into carpet when i was diagnosing.
If you have soldering equipment, I would a least try to solder it on, just for the peace of mind.

The pins on the older CPU’s are longer than the pins for Ryzen. I was surprised how short they are when I first removed the CPU from the clamshell package.
They should still fit in the socket IIRC. The socket itself should be deep enough. I don't currently have any for comparison so that is only a hypothesis.

EDIT; Nevermind you were right. The pins are not just longer, they have a larger diameter as well.
AM3&4CPUPins.jpg

Still a cheap donor AM4 CPU would do the trick.
 
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Agreed - The entire board and all CPUs you'd have for it would be useless, at least with the pins on the CPU it's only the CPU itself affected and frankly there are less incidents with it too that I've ever seen.
BTW I have a board (775 Gigabyte) coming with damaged pins in the socket, if I can't fix it I'll just rob parts from it to fix another one I have with blown MOSFETs.
That's right, take parts from old dead boards to fix other boards, that's what I do. But I also don't always fit the same MOSFETS back as I sometime feel it's wasting my time. So I head to Mouser & buy even better MOSFETS & change the lot & crank up the power by changing the resistors.
 
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And to what alternative? LGA? Same problems just on the mb. Had this been LGA he'd been screwed.
Maybe putting the CPU on a card that pops into a PCIe backplane?
 
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