Last week i am having pretty much fun with one card of Gigabyte RX 580 gaming G1 4gb - it is just simply impossible to mine on it - it is making all kind of errors like OPENCL failure and stuff..
So today i have decided to disassemble the card and guess what i have found?
On the card which is like 3-4 months in use we are having^
-stone thermal inferface which is becoming dust upon removal.
- ALL thermal pads started oiling and shitted all card with oily stains.
Sorry no photo made - forgot when assembled back after cleaning and replacing all thermal interfaces.
Be careful with you cards - check the plates near memory chips for oil traces - if you find some - just give this shit back where you bought it...
Claymore miner was not the problem - it was shitty Gigabyte thermal interfaces. Never buy Gigabyte.