Hi guys, been having this problem for a while now, not really sure what the cause of it could be. Anyway, whenever I play a graphics intensive game, or any similar task, my computer will eventually go to a black screen for a few seconds, then restart. While doing so the fans lights etc. are still on, and no memory dump is saved. At first I thought the problem was PSU related, but I've recently bought a brand new PSU, and it does not seem to have fixed the problem. In terms of temperature, everything is pretty reasonable, nothing too high, and I've RAM tested using memtest86. My system specs are as follows: Operating System: Windows 8.1 Pro 64-Bit Motherboard: Giabyte GA-990FXA-UD3 CPU: AMD FX-8150 Eight-Core Processor @ 3.6GHz GPU: AMD Radeon 7970 RAM: 16384MB Not sure what other information would be useful, but any help with this would be appreciated, as I'm struggling to find a reason for this issue. Thanks guys.