Accidental unplug with power on, stuck in boot loop with no BIOS.

[Zajice]

I've had this computer for a little under a year now with no troubles. Put it together myself. Earlier today it got unplugged while it was running when my roommate meant to unplug something else.

Now whenever I turn it on, it just loops over and over trying to boot. The BIOS splash screen never pops up. It goes in a cycle of two different loops. It turns on for a quick second, and quickly shuts off without anything on screen. Then it boots up again, this time long enough to see a mouse pointer and the flashing white _ like in a command prompt for a couple seconds (my computer never showed this screen before this started happening, so that's not normal) before shutting off again. The mouse will respond for the few seconds that it's up. The flashing _ is pulled closer to the center, making it look like it's in a lower resolution than my screen, but the mouse can be moved over the whole screen. That's the closest I get to a semblance of anything working from this computer. Then the process repeats itself starting from the short failed boot again.

The only time it strayed from this pattern was when I first turned it back on after it got unplugged. It didn't boot loop, it just stayed on with nothing happening at all. Other than that, same thing every time.

I don't have a lot of info to work with here, so I'm trying to give every little detail I can in hopes that it helps. Apologies for any excess details.

I don't think it's a PSU issue, as the fans spin up, LEDs turn on, and all that. I can only guess it did something to my motherboard, since I can't get to the BIOS anymore. I tried clearing the CMOS, but it did nothing. I thought of trying to flash the BIOS, thinking it possibly got corrupted, but I haven't a clue how to do that with what I have to work with. If anyone can guide me through that process, or has any other better ideas, that would be wonderful.

My motherboard is a Gigabyte GA-Z97X-SLI rev 1.0.
If any other info is needed, I'll do my best to provide it. I'm not really bad with computers, but I'm certainly no expert, so I'll do my best.

 

[synphul]

The motherboard has dual bios so if the original bios got corrupted you can switch to the backup. I would either give gigabyte support a call to ask how exactly to do that or look in the motherboard manual. Sometimes it's as easy as flipping a switch but rather than risk corrupting the secondary bios I would suggest following the manufacturer's instructions to be safe. If you don't have the manual there's a link to it here.

http://www.gigabyte.com/products/product-page.aspx?pid=4957#manual

Something else you may try is unplugging the power from the pc at the back of the power supply. Remove the coin cell cmos battery from the motherboard for a couple minutes then put it back in (make sure it's inserted correctly, one side is pos the other is neg). Then plug the power back into the power supply and attempt to power it up. Hopefully it will reset the bios it's currently using back to factory standards if it's not completely corrupted. It only takes a few minutes and it's free so worth a shot in case your previous attempt was using the clear cmos jumper and it didn't take completely. If no joy trying that then consider the manual instructions on how to switch to the backup bios.

If switching to the secondary bios doesn't work either it may have done something to the motherboard itself by freak accident/coincidence. Hopefully you can rma the motherboard if nothing else fixes it. You mentioned you've had it around a year, according to newegg it has a 3yr warranty.