07 October 2012
12v 4-pin Power Cable Shorts the Computer OutPosted By: Mick Pletcher - 8:15 PM
If your computer is shorting out when you turn on the power button and you have narrowed the issue down to the short out occurring only when the 4-pin 12 volt power cable is connected, then most likely the issue is being caused by the CPU cooling device not being secured to the CPU. If this occurs, the motherboard will short out. To fix this, reseat the cooling device over the CPU. This may require you to also apply a new film of thermal paste for good contact.
In my case, my CPU is liquid cooled and the cooling channel had come loose. When I re-tightened the screws, the system powered right up with no issues.
About Mick PletcherMick Pletcher
My blog is here to help solve issues I have encountered and solved, publish scripts I have written, and educate others in understanding areas that are not well covered