Here's my problem, as it happened:
If more hardware information is required, please ask.
It started when a windows update ran and tried to install after reboot, and then the screen went black and didn't come back. I restarted it and then after that it never went to boot (I could tell because I just had to tap the power button to turn it off as opposed to holding it down for a few seconds). I assumed that meant the BIOS was bad so I reset that as much as I could but nothing worked.
I bought a new, exact model as I had been running, motherboard, switched every component onto the new board, and nothing displayed on the screen, but i could tell it had booted underneath, because i had to hold the power button down to turn it off. I figured this meant the video card must be bad, so i popped in a different video card that I had and it worked fine.
If the video card had been bad then I wanted to return the new motherboard if i could, and continue using the old one, so I switched back to it, putting in all the same hardware but using the video card that had just worked on the new motherboard. Nothing displayed.
I take this to mean that something had happened to the original motherboard that fried the video card that I had in it and also fried the PCIe slot itself. I haven't retried the new motherboard with the working video card to make sure the bad motherboard didn't fry it as well, but while i have the original motherboard in, I would like to see if there is some way to confirm whether that slot is bad, or if something can be changed to fix it. I think it's a shame to just trash a $100 motherboard if something can be done to fix it.
What I'm looking for is some way to at least access the BIOS or the computer to make sure that the hardware is functioning properly, but without a display, I can't troubleshoot very well. What should I do?
Thank you in advance for any advice.