I have just put a 2nd Asus EAH 5870 v2 in my 2nd computer. I had fine scores in the windows experience index prior (7.4 ) I had just run it prior to adding the 2nd card, no problems. Now it quits after a short time. It begins to go and hits the spot where it is supposed to run some video and crashes. I had set up CF and it functions as it is supposed to and that is the only change i have made. i have a gigabyte 890FXA UD5 board , phenom II x6 Thuban running at 3.8, 8gigs of GSkill ram DDR3 1600 with 7-8-7-24 timing, CM HYPER 212 EVO along with the 2 big 5870s in CF. I use only the MSI Afterburner 3.0 beta5, but not much can be done with voltages with my Asus gpus, not supported any longer anyway, by msi.
I am not sure just why this is quitting/crashing. not too hot, as far as i can see. i have the temp sensors on as it runs and it never got to 60°C as it ran WEI. and it does get hotter in other benchmarks and never quit on me due to overheating.
I can not see anything helpful in any logs. It looks as if it runs one gpu, primary maybe, first and then goes to the other one before stopping. i am guessing based on the temps ramping up in only one at first and then stops as the other one begins to climb, but it is only at 44° and headed upward from 38° as the first one seemed to level off 58/60°C