Help BSODs!

[Mirage]

*Snip*
2x Passes with Memetest86+ with no memory failures
1 Hour Prime95 test 0 faults
3 runs of 3DMark 11 no issues

PC runs stable and cool around 55c within prime95 so I am not dealing with CPU overheat nor is anything else overheating.
Thanks ~ Syn

Memory tests operate with probabilities. Most memory fauls have a high probability of being detected within one or two passes, while other memory faults are harder to detect. The more passes you run, the higher the probability of finding intermittent and rare faults becomes. Two passes isn't really an in-depth test, it's more like a pretty basic superficial test. I would suggest running memtest for maybe 16 hours. Put it on before going to bed, let it run till you get home from school/work/whatever. Technically, one rare memory error could evade the first 5000 passes of memtest, while the same fault could be detected within 10 passes on a different machine which had the exact same fault. However unlikely it is, it isn't impossible.

Furthermore, memory related issues can actually be caused by the cache memory on the CPUs themselves. Even if the CPU isn't overheating, faulty cache memory on the CPU could run into problems if the rest of the CPU is under a decent amount of load. Generally, the CPU is not under much load while running memtest.

When I test my OCs, I generally only test my system for a couple of hours before I consider it "stable enough", but in reality, this is very, very sloppy . I guess I'm just a bit lazy. If I ran into instabilities at a later point, I would most likely test it for maybe a full 24 hours, unless i was able to detect the problem earlier than that.