my computer power off at random

December 22, 2011 at 00:44:49
Specs: Windows vista
computer powers off at random , i have i7 processor intel motherboard , dual gtx 260 video cards , 850 power supply 8 gigs of ram . i ran memtest ram checked out. i took my cards out cleaned all the fans , and after i put everything back n my pc it booted up and turned off 1 min later . no idea whats wrong with pc . can anyone help me fix my prob im having

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December 22, 2011 at 01:02:59
Have you checked your CPU temperature? Cleaning the fans might not be enough.
You may need to re-do thermal compound between CPU & Heatsink.

850 powersupply tells us nothing about the quality of the unit. What brand & Model is it?

Goin' Fishin' (Some day)

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December 22, 2011 at 07:30:43
If the 850W PSU is a cheapie, it may not be able to handle 2 video cards. Other than that, did you remove the heatsink from the CPU to clean it? If you did, did you completely remove the old thermal material & apply fresh paste?

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