Sometimes my motherboard won't turn on. I have to keep turning the power off for six or seven times to get it to start. I have reset the bios, taken everything possible of the board, even ram. I have checked the power supply with a psu checker, all lights on the checker work except - 5v. When I turn the mains power on there is a red led light on under a heat sink that comes on. When I press the front power switch on, there is a blue on but the computer doesn't start, if I leave it for about a minute sometimes it just starts up. I am thinking a motherboard fault, but I just don't know.
Asrock AB350 K4 PRO.
https://www.asrock.com/mb/AMD/AB350 Pro4/index.asp#Specification.
Asrock AB350 K4 PRO.
https://www.asrock.com/mb/AMD/AB350 Pro4/index.asp#Specification.