Computer Grey Screened, One Beep on startup, but nothing else.

[Mr_mediocre]

So I was playing Fallout 4 on the computer, with OBS open and recording. It's never had a problem with this before so it was all fine. Something happened though and monitor 1, plugged in Via display port to HDMI, went grey, and my second monitor plugged in Via DVI to HDMI went all black. I shut it off and turned it back on, but then the computer gave me 5 beeps, and the front LED flashed red 5 times, waited maybe 2 seconds, then did it again. I shut it off and here we are.

So now it doesn't start, it doesn't display anything but a black screen out of the DVI port, and it doesn't display out Display port at all.

If I turn it on right now, it gives me one beep, still blue LED, waits oh, 30 seconds, then Beeps once again, still having been blue the whole time.

I'm really in a pickle here and don't even know what to do. Any and all help would be so very much appreciated 🙏🙏🙏

[Mr_mediocre]

Right so I got back from school, now it doesn't beep on pressing the power button, instead it takes like a minute for the fans to kick on, it doesn't sound like the drive is spinning at all, and still it's not displaying a single thing.

I've tried removing ram, drive, and GPU, and combinations thereof to see if it would give me error codes like it did, but the only thing that happens is... Well nothing. If I unplug the motherboard from power it beeps red 6 times but that's it, plug it back in and back to literally an unserviceable desktop...

Help please!!!