Hey all, I recently got help ( http://www.bleepingcomputer.com/forums/t/600134/5-bsods-with-minidumps-since-nov-27th-maybe-one-without/ )in the BSODs forum (thanks, usasma!) and think the problem is now fixed--it seems to have come down to some RAM that I'd had installed in the machine since I built it. It checked out fine with memtest86+ but with Prime95's Blend test it returned all kinds of errors. I had very recently (late last month) also added another kit of the exact same model number (but 4 years newer) to the machine, too, so that's the 8 GB I'm using right now, which BTW tested fine with P95.
Hardware basics of my system:
ASUS P8Z68-V-LE motherboard
i5 2500k CPU
Original RAM kit: CMX8GX3M2A1600C9, ver. 8.16 (Corsair 8GB DDR3, 2 x 4GB, 9-9-9-24, 1600 MHz 1.65V)
Here's the question: on the Corsair forums, there was a thread ( http://forum.corsair.com/v3/showthread.php?t=112790 ) about this same kit/processor combo (different z68 chipset motherboard), and someone claimed that the i5 2500k processor wasn't meant to have the RAM at 1.65V to achieve 1600 MHz but rather at 1.5V for 1333 MHz. Was that possibly the source of the errors I encountered running P95 with the original kit? If that's the case, how is it that the same P95 test comes back flawless with the same model kit (albeit a newer version) running at the same voltage and frequency? Could this kit possibly be used in a different motherboard/CPU configuration and be fine?