PC crashed again.. was completely idle with a couple of downloads in the background and when the PC tried to boot up from restart I had 2 occasions of BOOTMGR being corrupt (classic memory related error) and then the PC refused to post until I powered down. Immediately checked RAM with memtest86+ and it found 10 errors in the first 5 seconds. Booted off, checked RAM and it was barely luke warm. Tried both sticks in one at a time and both signalled clear for errors. Put both back in and tried memtest and still no errors.
Temperatures have been CPU cores around 40-50, NB at 38, SB at 36, MB at 36. It does not seem like a heat problem. I think it might be a voltage problem? The PC seemed stable when the RAM was at packet stated settings when it's voltage was set to auto for i37. Since I started overclocking the CPU I have manually set the RAM to 2.04v as when I check it in the BIOS and Everest at this setting the value seems to +0.6 to 2.1. If I put the RAM to 2.1v in the BIOS it is 2.16v and so on.
I have now overclocked the CPU to 3.4ghz (as mentioned earlier in another thread) and put the voltages up on the vcore and NB and placed the DRAM voltage to 2.1v even though it says now in PC Probe II that the DRAM voltage is 2.16.
I'm going to run a Prime95 blend test for two hours until errors otherwise I'm going to restart and run memtest to check for errors.
EDIT: Prime95 found errors straight after starting. Went into memtest and it instantly found errors at the stated overclock. Turned the PC off and turned it back on and no errors were found. What the hell is the problem.