Hi everyone. I need some advice on how to remove oxidation from heatsink.

I have tried using a diluted vinegar with distilled water 1:4, soaked it for about an hour. After general brushing and rinsing thoroughly, I still find the oxidation all over the place, and it is rather painful to be using a knife to be scraping them off. Attached are the pictures of the condition (after cleaning with method mentioned above).

Before anyone tries to suggest, this GPU is a generic Nvidia P104-100, so I cannot find a replacement heatsink. I would greatly appreciate if anyone has other solutions or suggestions to offer. Thanks.

I have read somewhere that from chemistry standpoint, Coke works for copper but not for aluminium. Nonetheless, will give it a try, thanks.

If anyone else have some ideas, please feel free to continue pouring them in.

Hmm, I tried googling a few 1060s as u mentioned, but could not seem to find any that would be suitable.

https://www.bitnand.com/product-page/nvidia...100-mining-card

This is how the card looks like. If u do know of any heatsinks that can be compatible, please share. Thanks.

Hmm, I wouldnt mind doing this if it was only 1 card, but I have 8 cards to attend to, dont think I can afford the time and effort. Thanks for the info anyways.

Hmm, that actually gave me an alternative idea, cuz I do have a dremel and wire brush adapter, may consider that as the alternative. Thanks for input!

Anyone else have chemical type cleaning suggestions, please keep them pouring in, thanks!