To begin, here are my system specs:

Windows 7 x64 Home Premium
ASRock P55 Extreme Motherboard
Core i5-750 at stock
8x2GB of G.SKILL DDR3-1600 RAM (F3-12800CL9D-4GBRL)
HIS Radeon HD 5850
Western Digital Caviar Black 500GB Hard Drive, 32mb cache
SATA DVD DL Burner Drive

So, my first issues when I bought this machine was the fact that you can't use DDR3-1600 with the core i5 at a BCLK of 133, meaning I had to change the multiplier to 17 and the BCLK to 160 just to get stock on my RAM. I fixed all the timings (9-9-9-24, 2T command), but the voltages provided to choose from made it impossible to select 1.5v, only 1.489v and 1.559v. I went with the latter, assuming the voltage would actually be lower than what it said. My CPU is running at 1.100v according to the BIOS.

Now, my problem is stability in Windows 7. I am constantly getting a Memory Management BSOD, despite my memory passing 7 passes on 3 different versions of memtest86+. I have tried changing my settings in my BIOS, but nothing has come of it, so I just went back to what I have above.

Any help would be immensely appreciated.