Monitor's say "no signal input" after recent brown-out

[Xepher101]

Our power went out the day before yesterday, and it came back on yesterday. So I booted up my computer and everything seemed fine but several hours later we had a brown-out or power-surge, and ever since my when I try to turn on my computer the monitors get no signal, everything else seems to be working (normal startup beep, fans running, and if I wait long enough I even hear the Windows startup noise that happens when you get to the screen where you log into Windows).

All I can come up with at this point is there's something wrong with my GPU, I've tried putting the GPU into a different slot on my motherboard, and I don't have access to another GPU to try.

These are my specs:
Motherboard: Gigabyte Z68XP-UD3
CPU: Intel Core-i7 2500k
GPU: Nvidia GeForce GTX 770
PSU: SeaSonic G-750 80+ Gold
RAM: 4x4GB G.SKILL Ripjaws X Series DDR3
HDD: A Crucial M4 128GB SSD with a 750GB 7200-RPM mechanical HDD setup in RAID-0
Monitors: ASUS VK248H-CSM, and a smaller (not sure exactly what size) Hanns-G Monitor

Hope that's all the information you need to help, also I was playing Blade and Soul (new MMORPG) at the time of the brown-out/power-surge if that's relevent.

Thanks in advance. -Alex

 

[Upgrademe]

Outage from a storm or just a rolling one?

This could be several things; PSU, MB. Any beeps when the pc starts?

Have you tried unplugging all cords from the tower and holding the power button for like 30seconds-1min reconnect and try again

 

[Xepher101]

Outage from a storm or just a rolling one?

This could be several things; PSU, MB. Any beeps when the pc starts?

Have you tried unplugging all cords from the tower and holding the power button for like 30seconds-1min reconnect and try again

It was an outage from a snow/sleet/freezing rain storm. I hear the normal startup beep when I attempt to turn it on, and after a while I also hear the Windows noise that plays when you get to the login screen. I also tried unplugging everything from the tower and holding down the power button for 60 seconds and it didn't change anything.

 

[Upgrademe]

Next I believe you can unplug the 24 pin connector from the supply/motherboard, probably hear a pop as it discharge and try start again

Have another monitor to try? If another one works than usually after a power surge/outage I think you hold the monitor power button down for 30-60seconds while it's unplugged from the PC and power or one of those I don't think it matters and try again before the 24pin method

I don't suppose you have another PSU to try? If it's still not working could be the motherboard or GPU. I would still try to exhaust other methods

 

[Xepher101]

Next I believe you can unplug the 24 pin connector from the supply/motherboard, probably hear a pop as it discharge and try start again

Have another monitor to try? If another one works than usually after a power surge/outage I think you hold the monitor power button down for 30-60seconds while it's unplugged from the PC and power or one of those I don't think it matters and try again before the 24pin method

I don't suppose you have another PSU to try? If it's still not working could be the motherboard or GPU. I would still try to exhaust other methods

I gave a third monitor a try, still no luck there. I re-plugged in the PSU from the Motherboard no change there either. And sadly I don't have another PSU to try, if it's the motherboard or the GPU, is there some way I can determine which is the problem without swapping GPUs or Motherboards (because I don't have a spare of either)?

 

[Upgrademe]

It could be the GPU or the mb slot where the gpu sits then. Check if any burning maybe on the gpu connector or swollen capacitors on the mb

Generally the psu is the first thing to be affected after a power surge obviously but yours is a good one. You have any warranty on these parts?

It's hard to tell what it is if you can't try the parts on another machine or have other parts to try in yours

Don't these mb have onboard video now so you can turn it on without the gpu? To see if something pops up on the monitor

I think it's the gpu though because if it was your mb than you wouldn't get the Windows startup sounds

If you have warranty on the card(assuming it is the card I don't want to give you the wrong advice) than I wouldn't tell them a power surge did it. You would tell them the issue that you tried it on other PCs and it still doesn't work

Heck maybe even go to a Geeksquad or computer repair place with your card and let them test it on their systems

Edit: Forgot more things to try like cycling your ram-try one ram stick at a time, another suggestion is clearing your cmos(check your manual if it's a switch or just remove the battery) unplug the power then hit the power button and try again

 

[Xepher101]

It could be the GPU or the mb slot where the gpu sits then. Check if any burning maybe on the gpu connector or swollen capacitors on the mb

Generally the psu is the first thing to be affected after a power surge obviously but yours is a good one. You have any warranty on these parts?

It's hard to tell what it is if you can't try the parts on another machine or have other parts to try in yours

Don't these mb have onboard video now so you can turn it on without the gpu? To see if something pops up on the monitor

I think it's the gpu though because if it was your mb than you wouldn't get the Windows startup sounds

If you have warranty on the card(assuming it is the card I don't want to give you the wrong advice) than I wouldn't tell them a power surge did it. You would tell them the issue that you tried it on other PCs and it still doesn't work

Heck maybe even go to a Geeksquad or computer repair place with your card and let them test it on their systems

Edit: Forgot more things to try like cycling your ram-try one ram stick at a time, another suggestion is clearing your cmos(check your manual if it's a switch or just remove the battery) unplug the power then hit the power button and try again

Hey, I got my hands on a GPU someone lent me to test, and it worked (confirming that it is my GPU that is the problem), hooray? So I've since ordered a new GPU because the warranty I had on my current one ran out last month of all things. Oh well, Thanks for your help, I'll check your last reply as the solution so no one thinks this isn't solved yet.

Thanks again. -Alex