Blank Screen but is signal. Possible recovery blind

[Dhornet77]

I have a wild predicament. My pc is displaying a black screen on startup and I feel I may have to do a startup recovery blindly.

I have windows 7 on a hp elite 8200 sff pc. I tried to upgrade my video card but probably due to a weak psu the install never succeded. I also failed to disable the onboard graphics before I booted the pc connected to the new card. Either way, there was no signal coming from the new card and the fan was blowing very loudly.

So I ended up removing the new card and booting under the original integrated vga. There was still no signal and the fan was still blowing really loud. Removing cables and holding power button for 1 minute did not resolve issue. Removing ram and plugging it back in resulted in the pc booting. But with a black screen. There was no logo, no bios screen, no windows loading screen... but I know it booted because the windows startup noise played. The screen was still black so I did a hard shut down.

I rebooted again, now it sends signal but screen is still black. It starts at high resolution indicated by monitor for about 30 seconds which i think is windows did not startup normally then auto adjusts to 640x480 which would be the attempt to start windows normally, then finally auto adjusts to 800x600 and hangs. Which is probably me needing to windows 7 install disk.

I have a bootable usb. Buy how can I revover on a black screen? Or is there another way to restore graphics. Its very strange.

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UPDATE

i replied as an answer stating windows is now starting after sitting fora day then clearing cmos. More likely than not it was a gpu failure. Onboard integrated graphics do not work. The new video card works fine now. Just a freak occourance i guess

 

[ihog]

Have you tried using the bootable USB? Because if it does, that might rule out a hardware problem.

If you have another hard drive laying around, or another large USB drive, you can try installing Windows on that, too.

 

[Dhornet77]

Im not sure how to reply without submitting answer lol.

Thanks. I let my pc sit for about a day. Tried booting today, the black signal is now NO signal. I cleared cmos on motherboard. Something i tried yesterday with no luck. Somehow today its still no signal. But to my suprise I heard the windows startup noise !! Luckily i have teamviewer and it looks fine from my phone. I dont want to turn it off or restart and risk it not booting. it until i figure the best first course of action.

Update intels drivers?
Troubleshoot onboard gpu. (Not sure how to do from windows)
Something bios related?
Try a windows recovery. (Will that help restore gpu or is it just windows related)

First things first I will Update teamviewer to start windows while its connected if i can to keep it going.

I got everything backed up already from a prior episode of mess but i dont want to wipe my hd clean again but will if need be.