MOBO Boot-up Screen Looping?!

Nvoltis · December 23, 2015

Hello, last night I was left my PC idle while I was doing other work, and I had no problems. When I was ready to call it a night, I turned off the computer.

The next day (today), I turn it on and the Start up Screen (attached in files) keep looping on my Z97 Gaming 5 Motherboard and I'm pretty much lost now...

I reassembled the whole thing just now and I'm getting the same issue. I can enter the bios or boot menu, but have no idea where to go from there.

All it does is show the screen, load the animation, turn black, and repeat however in the bottom right corner there is lettering. It changes from "A2" to "9C" and repeat, but most of the time it's not there.

Really need some help here, I can provide more pictures or information on my computer specs if needed, but thanks for your time.

Naeaes · December 23, 2015

Relieve the machine of all USB and Sata devices (cables too!) and see what happens. Start plugging them back one by one to root out the culprit. Your manual should have a full list of the debug codes but according to a few forum posts at least A2 should point to a HDD issue and 9C to USB devices. That's a bit random so the root of this could very well be your PSU.

Nvoltis · December 24, 2015

Relieve the machine of all USB and Sata devices (cables too!) and see what happens. Start plugging them back one by one to root out the culprit. Your manual should have a full list of the debug codes but according to a few forum posts at least A2 should point to a HDD issue and 9C to USB devices. That's a bit random so the root of this could very well be your PSU.

I think I found the real problem... After messing around I realized my MOBO is asking for the OS from my Hard drive, but can't find it. So it goes to my USB ports like "Hey, maybe I'll find it here because this is where it was first installed" however it's not there.

Currently, my father has my USB with the OS on it somewhere, so I'm leaving it until tomorrow, boot up from the HDD, plug in the USB and install the OS back onto it with hopefully not losing any of my files.

How did the OS vanish? It remains a mystery...

The whole PSU case wouldn't make sense as it has enough power to boot up the whole system, fans, LEDs, etc. Thanks for the help though!