A new host, normal use for a week, yesterday in an external optical drive (independent power supply), suddenly automatically shut down, it is the graphics card CPU fan is normal, but haven't display signal, motherboard CPU in the debug led light red, nic lights, keyboard, wouldn't light buckles motherboard button batteries, reinstall the graphics card are tried, didn't touched, the CPU pins, CPU power supply no problem, what reason is this? Problem is the motherboard or CPU?

CodePudding user response:

Hardware chassis grounding is bad, it is estimated that there are damaged by static electricity, the smallest system method to screen first

CodePudding user response:

reference 1st floor nighthawk response:

bad chassis grounding, electrostatic estimated hardware damaged, minimum system method to screen first

Hardware screen, as with the CPU and motherboard, has been sent back to factory maintenance