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Old 04-20-2017, 02:18 PM   #1
Learning To Overclock
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Questions about the pins on SAPPHIRE NITRO Radeon R9 390

Hi EOC community!

I noticed some weird looking pins on my card and wanted to know if they should cause me some concern. I took some pics of scratched or burnt pins ( can't tell).

My card: SAPPHIRE NITRO Radeon R9 390

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Old 04-20-2017, 04:39 PM   #2
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I looks to me like the gold plating is missing, and you are seeing the underlying copper. The gold is supposed to be there because it does not oxidize like copper, and protects it from the same. It does not look burned to me, but suspect it is oxidation of the copper. Maybe this is missing from the manufacturing process, or they did not have good bond to the copper for some reason or other. You might also check the PCI-e slot just to be sure nothing is abrasive there.

Copper is a good conductor unless oxidized.

I have an idea but do not try it unless others on this forum agree. I would not try this unless your card is not functioning right. You could very gently clean the copper with pencil eraser, but don't try abrasive, as it is thin coat. Practice on an old card first if you have one laying around. Then use good quality silicone dielectric grease (see picture) to keep the air (oxygen) from the copper. I have used such in CPU socket with good result. It has higher melting point than Vaseline and won't run all over your board after heating up.
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