Heya,

I just got my computer back home from a LAN party and I've found that all of a sudden it's developed a nasty tendency to lose power (and not power on for another second) now and then when I soft or hard-reset it.  Worse, this sometimes wipes the BIOS SETTINGS too.

The motherboard is an ASUS P5Q Premium with a Core2 Duo E8500 in it and 4GB of OCZ 4GB (2x2GB) DDR2 1066MHz/PC2-8500 RAM.  The fact that it's doing it whilst hard resetting makes me think it's a hardware problem, but for reference I've been running FreeBSD 9 when this occurs.  I can try reproducing the problem on Windows 7 if that helps.  Power supply is a year-or-two-old Antec EarthWatts 750W.  The cooling equipment I'm currently using has been running for a few months with no prior history of OVERHEATING, and a quick eyeball of the system temperatures whilst reconfiguring the BIOS after the first attack showed them being normal (~40C for the PROCESSOR, ~30C for the case).

I think I might have had BIOS memory issues with this motherboard before, but never anything coupled with the power going off and staying off for a short while.

Thanks in advance, and apologies for initial lack of information (it's quarter to 5 am here so I'm going to have to drag myself to bed soon!)

~ MattWhen you came  home from the LAN party something got loose. Maybe the RAM STICKS. Maybe the AGP card.

Or the maybe a cooling device separated from the CPU. Or the GPU. Check to see if the heat sink is fully seated on the CPU.

And check the PSU fan. Even a 750 WATT PSU needs the fan running. Don't smirk. A friend took a computer to a shop and they could not see the PSU fan was dead.  You have to really check it. Do as Geek suggests, since you moved computer, it is possible something came loose.
Then check CMOS battery, CR-2032, available everywhere.
If battery is good, you may have the dreaded "Bad Capacitor" problem.  http://www.badcaps.net/