First of all, thank you for taking the time to read this.
I have recently bought new parts and put together a spanking new computer less than a week ago. It all went fine, except perhaps for the CPU running a little hot according to the temperature indicator in BIOS. After installing a few programs and getting my PC in working condition, I decided to run some tests to see just how hot the CPU was when idle and under load, so I ran Hyperpi and Prime95 to force the CPU and kept track of the temperatures using RealTemp. When idle, my CPU is around 40șC (CPU-z shows it running at 1.6 GHz). When stressing all 8 threads to 100% at the stock frequency of 3.4 GHz, the temperature quickly rises to ~70șC and stays stable. However, after two minutes or so, the computer suddenly crashes/reboots (no BSOD). Since I wasn't sure whether the CPU was causing the reboot or the RAM, I ran Memtest86+ for two passes, and got no errors. The computer is somewhat stable otherwise, though it has crashed twice in approximately 10 hours playing relatively demanding games (Just Cause 2 and Sanctum).
With my considerably limited computer knowledge, I imagine the problem is overheating, even though 70șC, while hot, should still be in the safety range. Also, the CPU doesn't seem to go beyond 60șC while playing, which makes overheating a stranger suggestion. I should have gotten a better cooler off the bat, but I had heard many stories of people overclocking their SB CPUs with extreme ease, so I figured it might not be necessary. I had a computer for a long time with similar rebooting troubles before, and it seems that its problem was indeed overheating. However, exactly because I do not know much, I would very much appreciate some more educated opinions.
Motherboard: MSI Z68MA-ED55B3 (overclocked to support 1600 MHz memory) - brand new
PSU: Corsair VX550W - 1 year old
CPU: Intel i7-2600K @ 3.4 GHz (No overclock, yet) - brand new
Cooler: Intel stock fan - brand new
RAM: 2 x 4 GB Kingston 1600 MHz DDR3 - brand new
GPU: Radeon HD5750 - 1 year old
OS drive: Intel Series 510 SSD - brand new
OS: Windows 7 Enterprise 64-bit (OEM), updated to SP1
I have uploaded the Seven Forums dir obtained from using SF Diagnostic Tool - Using for Troubleshooting
and the system health report.
Thank you for your attention.