Xfx rx 580 8g gts black edition.. 1 button pop out fans to replace.. so I keep my fans at 95% all times
Is that useful to clean them or you mean to replace because of wear and tear ? I also found fans to be the most likely to slow or stop mining, in one case it was the actual fan controller chip that went wrong without any good reason for it.
I have a XFX card from 2008 thats never stopped, it was a blower style though which apparently do last longer. Not anymore but at one time XFX offered life time warranty to original owners, seems they are still higher quality like that
I have sapphire running for more than 1.5 years. BIOS modified but more than 30 Mh/s does not rise. Temperature depending on the time of year lasts from 42 to 57 degrees. Lifetime warranty probably is a fake. After mining on GPU has got mass character in my country has ceased to serve the GPU under warranty if they find out that the GPU used for mining.