Only time I ever seen this message is right before my power supply died. In safe mode your graphics card and such wouldn't be pulling as much power. I suggest attempting a reinstall of windows to ensure its not a corrupt driver. If it occurs again you may need a new PSU. In most all cases this message occurs due to a piece of hardware about to fail.
Ok, just asking, cause upgrading with new cards that give the system more power requirements than the power supply puts out can do this.
I was getting this blue screen error, sometimes. When I checked the Windows System Log (which you can do in safe mode with command prompt [ c:\> EVENTVWR.msc ]), I saw a critical error at the exact same time as the bsod--a "Kernel Power" error, indicating the machine rebooted before it was actually done with the boot process.
I never did pinpoint my IRQL_NOT_LESS_OR_EQUAL error. I just reformatted and reloaded, with a slightly different order of loading my drivers. So far, so good. I haven't gotten the blue screen since 10/24/12
Check your Windows System log, if you can remember what time the blue screen happened.
i was, (and still am) getting a similar BOSD. I found out it had to do with old, outdated, and frankly wrong NIC drivers. Try getting newer versions of that. I know it's out there, but it has slowed mine down at least.
It is possible to get this error--coupled with a "Kernel Power" error--from a source outside your computer. You're computer could be running fine; but, if the line voltage has "sag"s in it, when the computer's trying to start up, it won't have enough power to complete the job.