Ntoskrnl BSOD On Wakeup From Sleep

For the past month I have been randomly getting BSOD when my computer wakes up from sleep. My first crash was 25 days after install, and now it happens every 3-5 days. Usually just once, and I can never seem to replicate. But it happens only when the comp is waking up, never when in use. I have tried to induce it by sleep/wake repeatedly but it happens totally randomly.

I typically don't leave my computer on for prolonged periods so I can't say it wouldn't do this after being turned on for 3 days but I have yet to have a crash like that.

My system is overclocked/watercooled and had been running stable with Vista x64 since it was built in Jan 09. I installed Win 7X64 Ultimate 7100 on July 5 2009.

So, far I have tried:

Reinstalling chipset, and updating all USB pheripheral drivers.

Update video and sound drivers

Uninstalling all windows updates

Removed one 4870 and disabled crossfire

Full repair of windows (not clean install)

Overnight memtest 8 passes

Prime 95 multithread 9 hours with no failures

Last Night I tried:

Updating chipset again, bios, and raid firmware.

Disconnecting my UPS from the USB port.

I am at a loss for what is causing this. I've seen a few threads around with

ntoskrnl issues, but none that happen only on wake up. Tonight I plan to do some PSU testing.

Does anyone have any ideas about this, mini dump file is attached ?