Hey guys, I'm sure I'm posting a duplicate forum, but I feel like the advice on other forums are bit too different for me.
So here's my problem. I feel my motherboard around the CPU is bad. When I start the computer, it shuts itself down and I hear a whining noise getting higher like a capacitor overcharging, and then the CPU LED lights and the board shuts off.
- So what did I do so far to diagnose this problem?
- I unplugged everything and plugged it back in, to make sure the cables are correct.
- The PSU self test has passed.
- I eliminated the possibility of the PSU being defective as it successfully powers the GPU from the same outputs. My PSU is fully modular.
- I attempted to start the MOBO with no GPU, peripherals, and memory
- I disconnected the 8 pin connector and the MOBO remained operational but unresponsive, logically.
- I ran the board outside of the case in case the case was shorting the board.
- I disconnected the CPU fan from the motherboard in case the back mounting plate was shorting.
After all that the problem persisted and seemed more and more like a bad capacitor on the MOBO. When I let it discharge for several minutes, the MOBO runs for about 20 seconds. When I turn it on right after it powered down, it runs for about 7 seconds.
I'm consulting this forum in hopes of receiving a second opinion of what could be causing the problem and how to fix it.
I've narrowed it to this:
- Most likely bad MOBO
- Less likely CPU
- Least likely PSU
Any input would be appreciated.
EDIT: Using a friends PSU, I ruled out my PSU being defective his PSU didn't fix the problem in my computer and my PSU worked fine in his computer.
