How to fix a corroded LGA775 (Core 2 Duo) socket

[vkatsarelias]

One day, I took out my CPU (that Core 2 Duo if you are following my previous thread, link here) in order to clean it from the previous thermal compound. After reinstallation, the PC would turn on, but there was no image. I took out the RAM & CPU and reinstalled them several times, however, the result was the same. Upon closer examination, I found out that 7 pins on the socket and 2 on the CPU were corroded.

CPU (underside): https://drive.google.com/file/d/1rUOZ82GOjdfYxmiXbY4zV0xXO_M-iQMv/view?usp=sharing

Socket: (1) https://drive.google.com/file/d/1tSUTu5aZt7VD16mQqa6TJViaGGVV59x6/view?usp=sharing , (2) https://drive.google.com/file/d/1LD1eNXklXs3HBb8MPlML4Qa2TS21NfG6/view?usp=sharing

Those pins are probably some data pins, because I tested a 2nd processor (exactly the same as the 1st) and the results were same; no image at all. However, the processor heated up quickly in 2~5 secs while testing without a heatsink. I tried to fix it with a tiny drop of vinegar. That fixed some pins, but not all of them. (2 out of 7) Also, it was after the vinegar "treatment" that I discovered that 2 more pins were in even worse condition; the "end balls" that make contact with the CPU pins were missing.

So, is there anything that I can try to fix the socket or should I go and find a new motherboard?

 

[richardvday]

New motherboard unfortunately.

 

[RememberThe5th]

Well I personally used some fine sandpaper and with very light pressure sanded the pins of cpu socket, also make sure to clean the socket by air to remove tiny metal pieces., as for CPU , ehh I dont know.
Do this at your own risk.

 

[geofelt]

Once installed a cpu should not be removed from the socket without good reason.
The sockets are designed for only up to 15 insertions.

Sounds like both the cpu and the socket are not repairable.
Is the rest of the pc worth changing out both cpu and motherboard?

 

[richardvday]

the part where he says "the "end balls" that make contact with the CPU pins were missing." makes it seem pretty clear he needs a new motherboard.
And why would you even take out the cpu ? Clean it off without removing it. No need to do that.
My socket 775 ran fine for years without once removing the cpu, the guy I gave it to still uses it.

 

[Yoakim Anastasov]

I would try with a drop of WD40 and rubbing gently with a cotton bud. You have nothing to loose after all

 

[techgeek]

We have a product in Canada called CLR seen in this link:

CLR Link

It removes corrosion easily. I would be careful using it and not get any on the plastic of the socket. Moisten a lint free cloth and wipe the pins carefully. You don't want to get rough with the pins because if you bend them you could have trouble getting them straightened.

 

[vkatsarelias]

Well I personally used some fine sandpaper and with very light pressure sanded the pins of cpu socket, also make sure to clean the socket by air to remove tiny metal pieces., as for CPU , ehh I dont know.
Do this at your own risk.

As for the CPU, I have a 2nd Core 2 Duo which is the same as the previous one (even the clock speed is the same). But, check the part where I say "the "end balls" that make contact with the CPU pins were missing". That unfortunately means that I have to find a new computer (which I'm doing right now). Thanks for the suggestion, by the way!