I have built this custom PC with an ASUS Z87-PRO 4 years ago. I have been using it since without much problem. I have upgraded some components over the years like the hard disks without any issue.
Yesterday, I removed the speakers system for a party. I came back to my PC, plugged in the speakers system back and powered on to find out that it was stuck in a POST loop. You can see a short video of the Q-Code LED information I'm getting. No single 2-digi error code stays on. They just keep rotating in this loop.
I can also see the VGA led, the CPU led and the DRAM led lighting up for a fraction of a second in this POST loop in this sequence: VGA, CPU, DRAM. I'm guessing POST is testing them when the led light is up. I'm also guessing these components are fine since the led doesn't stay up as well.
There was a storm this morning but I doubt this is an issue here. My PC is plugged into an APC Back-UPS Pro 1000 which should take care of power spike issues.
While I'm in the POST loop, my monitors do not show anything. They just remain black.
How can I start my investigation to solve this issue?
Any help or suggestions would be greatly appreciated.