BSOD ntoskrnl.exe

Hello All,

Been having these crashes for a while now. They don't happen that often, but they are frustrating none the less.

A little back story, this is my first build. Have it for about a year and a half. Initially I had random crashes but only when playing two particular games L4D and GTA IV. I figured out that it was a problem with one of my sticks of ram, so I removed it. That seemed to fix my problems. Back then I had a dual boot XP and Vista. I continued with the single stick of ram, upgrading to Win 7 Beta, RC and eventually the retail release.

After my last upgrade I began experiencing the ntoskrnl.exe crashes. My system is overclocked but I began experiencing the crashes prior to the overclock. I also added the previously thought faulty stick of ram.

Since I began experiencing the crashes I've tried quite a few things. I ran Memtestx86 on both stick together and separately, last test ran for 9:30hrs no errors with both sticks. Undid the overclock, ran Prime95, Intel Burn Test, all passed. Reinstalled all my drivers. Even did a complete reinstall, more than once, but to no avail.

The only thing that I'm certain of is that the crashes happen when ever I play Youtube videos, or any type of embedded flash video. Not all the time but every once in a while I'll be watching a video and bang BSOD. It's also happened when watching a regular video file, mp4 recorded from my phone, but that produced a different crash.

So this crash only happens when playing back videos?

Additional Notes:
I see hal.dll was blamed for a couple of crashes. This usually means incorrect voltages of your ram and/or cpu. Compare the manufacturers settings and bios settings for you ram voltages. A small difference can cause a lot of problems.

I looks that way. It seems that every once in a while when I sit down to browse youtube I get a crash. Screen locks up sound buzzes and poof.

I've begun to play with my bios settings once again, alas I'm no expert. I was under the impression if my settings could pass stress testing I was in the clear.

Thank you for the quick response!