"ASUS P5Q Deluxe discussion".

[Shtrafenhoofen]

Since I got my hands on the p5q deluxe I have been having a random reoccuring problem...the system will sometimes just shut down (like the power cord was pulled out) regardless of system load...

replaced ram mushkin xp2 8000 2x2gb with gskill 8500 2x2gb same thing happens so ok its not the ram....

replaced with another p5q deluxe this time the new revision a3....worked fine for a week then again same problem...

the sytem is stable prime 7 hours occt 1hour and ibt 10 passes also ran memtest 120 % but yet the pc just randomly shuts off once in a while regardless of load... never had a bsod

any help would be appreciated

[mozis]

Shtrafenhoofen:

Your mobo was replaced, your RAM was replaced. Your CPU seems OK. Time for PSU?

No seriously check with different PSU IMO.

Or your custom CPU fan turns itself off randomly (like the Noctua couple of posts up) and causes overheating which leads to power down (that would be more unusual than a PSU issue)
Either that or issue with electricity in your house/wall socket - i know, sounds stupid :x

Edit: jdmR beat me to it

[Pants-Of-Fire]

Since I got my hands on the p5q deluxe I have been having a random reoccuring problem...the system will sometimes just shut down (like the power cord was pulled out) regardless of system load...

Sure the CPU is not overheating and shutting down for safety? That's usually just a poorly mounted heatsink.