PC fails to power on due to PSU coil whine linked with 24-pin motherboard connector issue.
PC fails to power on due to PSU coil whine linked with 24-pin motherboard connector issue.
Pc randomly won't turn on out of the blue. happens on average once every 3-4 weeks. It looks as if the PSU is broken as there is no power and a high pitch coil whine can be heard. the power switch isn't faulty as I still can't start it by shorting or using the reset switch on the power switch pins. I usually unplug everything from my pc and grab the power cable and move to the living room and give it a clean. I have done this with the power cable in and PSU turned on and without the power cable plugged in. Anyway, after about 5-10 mins I press the on button and it boots up as if nothing happened. This time however nothing happened for 18 hours. I know it's not a faulty PSU( EVGA 650 W 80+gold) as I have had 2 different ones ( the other one being a Thermaltake smart bx1 80+bronze ) that have made a similar coil whine. The Coil whine sound stops when I unplug the 24pin mobo connector and starts again as soon as I plug it in. My pc is running again now but I need to sort this issue out. I believe I'm going to need a new mobo as the only cheapish thing left in my build is the mobo and along with the whine caused by the 24-pin. but I'm not sure. My Specs are : CPU: R5 3600 RAM: 32gb Thermaltake tough ram z-one MOBO: Gigabyte b450m - ds3h GPU: Gigabyte RTX 3070 PSU:Evga supernova 650 GA 80+gold SSD: crucial mx500 500gb m.2 SSD: wd blue 1tb HDD: wd blue 2tb