by arizonachris » Tue Aug 06, 2013 6:28 pm
My gaming PC was doing something similar with the video going out, sound in a repeating loop, and all the fans screaming like no control. It would do it randomly, a reset would usually fix it for another 20 minutes or so. I finally just set the PC on it's side, opened it up and reinserted every single power plug, switch wire and card. Also blew the dust out of all the fans with that canned air, and put some new heat sink compound on the CPU fan/ heat sink. Since then, the PC has been running 24/7.
If you know your way around in the board's BIOS settings, make sure "Cool and Quiet" is off, let the CPU fan run full speed. You can use "Core Temp" to watch the CPU temp. If the CPU gets to a certain temp, BIOS will "throttle" the CPU's speed to cool it off, and could be causing part of your problems. Not sure what else to suggest now. Try one step at a time to see what helps and what doesn't.
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