Is it the power supply? no monitor signal, no post, no beep

Tmorecroft

Commendable
Oct 17, 2016
3
0
1,510
So I've had this computer for over a year. It was working fine, had an update to antivirus asking for a restart. and it went to restart, except when it tried to come back on. nothing happened. monitor stayed off, no post beep. the fans are running and the LED's on my graphics cards came on. heard some activity on my non SSD hard drive, the BR drive revved up, but that's all. I've looked through a number of posts and a lot of similar cases pointed to the PSU. I've cleared CMOS, unplugged the power supply and dumped lingering power like I've seen suggested in other posts, but nothings seemed to work.