Sometimes my computer refuses to boot?

jrt6 · December 13, 2015

So when i go to turn on my computer it will POST fine and shows the Gigabyte splash screen but then hangs there. I've noticed it tends to happen after I turn off my UPS (like switching off a surge protector) and then I restore power. Sometimes it even happens if I shut down for the night (but don't cut off the power), and when I go to start it in the morning it does the same thing.

What will happen is I push the power button to turn it on, I see the Gigabyte screen pop up but then it will hang there. Normally, the Gigabyte splash screen will come up and then the windows loading wheel pops up. If I push the reset button it'll instantly boot up normally. Otherwise, when it does boot up it runs just fine and stable even under stress tests and under a gaming load.

The only diagnostic code I see on the motherboard is: A0 (even when it boots normally)

Motherboard: Gigabyte GA-Z97X Gaming 7 (I just updated the BIOS, didn't fix it)

CPU: Intel Core i7 4790k

RAM: G.Skill DDR3 1600 16gb kit

Hard drives: Samsung 850 SSD (Windows 10, my first boot device), WD Black 2TB, and a Samsung 840 SSD (Macintosh OSX is on there)

GPU: EVGA GTX970

PSU: Corsair RM750x

Misc: TP-Link PCI-E Wifi card and a Cyberpower 1000VA Pure Sine Wave UPS

What could be causing this? Anything I could do to fix it?

Master Disaster · December 13, 2015

Go into UEFI, find full screen logo and disable it.

What does it say when it freezes?

XDroidie626 · December 13, 2015

Try to remove USBs then boot, HP systems seem to haev a similar problem, if that doesn't work come back to us.

jrt6 · December 16, 2015

Go into UEFI, find full screen logo and disable it.

What does it say when it freezes?

Well that helped me get farther!

Turns out it may not a BIOS issue but I'm starting to think it's a windows issue. Because now that I disable that, as soon as the BIOS splash screen goes away, it shows the Windows 10 flag and then hangs there until I push the reset button and then it'll boot normally.

I shouldn't have to be resetting my computer just to get it to start every time :mellow: