yes corrosion, i took a risk and got A $100 win one off auction site. What i found i should have asked for return. There was a bit moisture come off fan blade when first test it. looked further on in the heat sink, oxide been sitting in damp area. looks like the guys grows and sells mushrooms and fugus on the trade site. Was said to be new done few months mining. Anyway pulled it down, board looked really clean, circuits too, balling ram etc looked clean nor any staining etc All except one spot end of card one circuit area had small bit dirt corrosion between its contacts, gave it a good clean put it together with from c "A1 platnium thermal grease for overclocking " has 25% silver. tried it seems to go good, but have had some driver issue initially with wattman and sapphire trixx software and one issue said it failed fan test on trixx . Looks like fans work good as should except it takes 10% power before they spin. Nice bearing spin etc. i also had error on my drive that was fixed, never had that before. passes all other tests tried. seems to be-going good now and hoping haven't done or will do damage to my pc.
Now im wondering if i should pull the fans down check inside them? it maybe where this small bit moisture come from.
got to use trixx to keep fans going at idle as the new fanless amd option never stays off after restart. ive pushed it and not gone over 70c yet.
Anyway that my story, thanks for your help.
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