Hi all, I hope you can give me some ideas. I'm using a Rampage IV Formula with an Intel i7 3930k (C2 stepping) and 16 GB of GSkill RAM in quad channel. I have two Radeon 7970s and 3 monitors in Eyefinity. Power supply is a Cooler Master Silent Pro Gold 1000W.
My system freezes completely with some games. Battlefield 3 may crash after 20 minutes or after 6 hours (or not crash at all), but in Serious Sam 3, the crash always happens in less than 10 minutes when starting a new game at Cairo level. I have no idea whether it's an AMD Catalyst problem (I have tried several drivers up to 12.6 beta) or a motherboard/CPU problem. No error message, no BSOD. The computer just freezes, image is frozen, keyboard and mouse stop responding and I must reset the computer.
Everything is at default speed, nothing is overclocked. The crash does NOT happen if I disable Eyefinity. And it does NOT happen if I disable Crossfire. But when using both Eyefinity and Crossfire, bam, system freeze. I have done a new, virgin Windows 7 installation with only motherboards drivers, Catalyst, Steam and the game. Yesterday I also tried the new Windows 8 RC with the new AMD Catalyst drivers, but I get exactly the same freeze.
And here's what puzzles me: normally, when I press the reset button, the system reboots instantly. But when this freeze happens, I press the reset button and nothing happens, the computer keeps frozen. Then, after 8-10 seconds, it completely shuts down and then it powers on again automatically after a couple of seconds.
What do you think?