Constantly having to purge power from motherboard

Feb 25, 2018
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I recently installed a new CPU and wasn't satisfied with the temps so I reapplied some arctic silver 5 and secured on my cooler. Every time since when I power off the PC (by choosing "shut down" in the Windows Start menu) it won't boot again properly.

After it has been shut down (even multiple hours later) I push the on/off button to power it on, the boot screen runs through like normal and both my LED keyboard/mouse turn on as it runs the boot menu. As soon as the boot menu disappears, its supposed to show the Windows logo and spinning loading dots as Windows starts and then takes me to the login screen.

Instead my LED keyboard shuts off at the end of the boot sequence and my mouse pointer becomes a frozen spinning blue loading symbol for a couple seconds until my monitor shuts off, not recognizing any input from the mouse.

Then I cannot use the restart or on/off power buttons to turn off the computer. I have to quickly unplug the PSU cord from the wall outlet. The only way to get a normal startup is to leave it unplugged while I hold the power button for 30 seconds to purge any residual power in the system/motherboard.

I have had this issue in the past and had to purge the power but very rarely. Since seating my CPU cooler again this has happened multiple times, I think at least 4 boots in a row.

Is there anything I can do to fix this? Could there be something wrong with Windows 10? Should I replace the CMOS battery or something? My power supply is brand new and has only been in the system a month or so. I know that this motherboard is hardly ideal and might have a bad power phase but I'd like to try and resolve this somehow.

Motherboard: MSI 760GMA-P34 (FX)
PSU: EVGA Supernova G2 750W
CPU: AMD FX8350 @ 4.0ghz
Cooler: Rosewill 92mm ROCC
GPU: MSI GTX 1060 6GB
RAM: 16GB DDR3

 
Solution

I feel that it the motherboard. Mainly cause the fx8350 is 125watt an the board only has a 4pin for the cpu power 1 red flag in my opinion. I think it just a power issue in the board, try using your old cpu and see if it doing the same if not then I'm pretty sure the board power issue.

 
Solution