OC'ing the 5850 and fan life span
Hey all.I just got a Sapphire 5850 and am now overclocking the hell out of it. Running stably at 940 Core, 1150 Mem at 1180 Mv voltage. I've set a fan profile that keeps the card running under 69 C under the Furmark extreme burning and standard stability benchmark.
My question is how aggresive do i have to be with keeping the temps in check.
I read that a good rule of thumb is to not let the core temp go beyond 85 C for an extended period of time but i see artifacts when my temps start hitting 71-73 C. My user fan profile as set in MSI's Afterburner keeps it under 69 C, as i've mentioned but the fan runs at 65-70% of max rpm.
My question is, what is this doing to the lifespan of the fan? I know it's going to kill the fan faster, but just how much faster exactly. Any guidelines regarding a better speed to run the fan at? Of course keeping GPU temps in check are the number one priority; i could'nt care less about the noise, i game with a good pair of headphones.
Any info about the reference 5850 design fan? Thanks.