Husband and I are both gamers - namely WoW. We just had my new system built about this time last year and it runs like a charm. We had his built 6 months later with some slightly newer components and every time he plays WoW his computer shuts down. It doesn't crash with blue screen - it just shuts down. We have replaced and upgraded every component in that one except CPU and some more than once. We have added another cooling fan, upgraded power supply to 1000 watt, done diagnostics on the memory, CPU, video, directX, all are fine. He's gone as far as bought another case, another vid card, replaced a Hard drive, replaced the CPU fan with a larger cooler.
ASUS M4N78 Pro
CPU AMD X4 955
Memory Corsair PC2-6400 4 2048 Modules
Video Invidia Geforce GTX 285
Op Sys Windows 7 Professional (I run Windows 7 home version)
The problem is not heat related - we moniter the temps - CPU is 39C Motherboard is 37C Video GPU runs 56C (WoW is the only thing that shuts the Motherboard down - he can run anything else and several at a time with no problem)
He is about to go out and buy yet another motherboard and CPU, as he is out of ideas. Help please.