I have an MSI RX570 "armor" GPU in my pc. It's factory OC'd with 8gb of VRAM. After leaving it on all day with no problem while I was at work, I come home and sit down and do random normal tasks on it for a few minutes. I booted up csgo, as I've done a hundred other times, and as I was tabbing into it, the screen turned black, with a split second of some dark green pixelation around the edges. It then stayed black. I waited a few minutes but it stayed black. I turned my pc off and on again and sat there on the black screen with no post for a fairly long time. I turned it off and on again, this time it started booting normally, then went to a "restarting" screen randomly. After it went black to "restart" it didn't work again. I took the gpu out, swapped pci slots, swapped power cables to the card, nothing helped. Unplugging the card and running off my integrated vega graphics on my mobo's HDMI port works totally fine with no problems. I really have no idea what to do since it was out of the blue, working one second, not working the next. Please note GPU fans power up like normal and everything works fine visibly on the card. On my mobo, the red "VGA" LED stays lit up while it's failing to post. Any help would be greatly appreciated.
I haven't updated my pc or made any software changes recently at all.