Bad Motherboard or CPU?

[sgrinavi]

With regard to the system in my sig

I have had this system running since March without issues, suddenly it has begun to randomly shut down (the LCD reads POWER OFF) after 5-10 minutes. I took the system down, one component at a time, testing between; the problem persists. Currently the system is out of the case, sitting on a box with just the video card and a single stick of RAM. Sill, it shuts itself off after 5-10 minutes.


I have reset bios, changed memory, changed PSUs & graphics cards. The temps seem OK - CPU & MB temps start in the high 20's and climb to the mid 30's, NB & SB temps climb to around 50.


As near as I can tell the only thing left to be FUBAR are the CPU and MB... right? did I miss anything?

 

[SanDiegoPC]

Did you change the power supply with a same-type unit, or did you replace with a higher wattage unit?

 

[sgrinavi]

Did you change the power supply with a same-type unit, or did you replace with a higher wattage unit?

I replaced and ES 800 with an almost brand new Corsair 620, but I also took out the big video cards and stuck an 8500 GT (no external power required) and disconnected all of the drives.

 

[SolMiester]

Guess the only thing left to control the PC is the mobo......you have done everything else!

 

[sgrinavi]

Turned out to be a bad mother board, asus advanced RMA rocks.