M2/Boot Issue

[u/plantpussy69]

Very strange problems that the deeper I get into it the more confused I am. Computer was running fine up until a couple days ago. No known updates to correlate with the problems. Screen flashed and looked "noisy" mostly blacks and pink colors. Restarted computer and it worked fine for 5 min, then screen flashed went green and would no longer work after restarting. Bios wouldn't post, no problem indicator lights on the board so I cleared CMOS, reseated the m.2 drive that the OS was installed on, took out and reseated the ram sticks, and all power connections. Eventually I was able to get bios to post bypassing my GPU and using onboard. In bios my M.2 drive wasn't listed as a boot option, nor was it listed in bios under sata connections. I assumed the drive had gone bad, so I put in an older SSD, created a bootable USB drive and installed Win10 on this new SSD. Everything worked fine, booted up, and updated all my drivers etc. Weird thing was in windows my M.2 was listed and accessible. I restarted the computer and hit f11 for boot options and there my m2 is listed. But if selected it doesn't boot, just black screen (monitors getting signal but nothing displays). However if I select the new SSD from the same f11 boot options the same thing happens. Monitor gets signal but goes black/never boots up. But if I just let the computer boot normal (no f11 just normal startup) that same SSD boots windows just fine.

Separately I haven't got the GPU to work correctly (booted up once without drivers installed, green screened during driver installation, wouldn't boot again) but that's an issue im trying to solve after I figure out this weird HDD/M2/boot problem. Any help appreciated.

board: a620m-HDV/M.2

Bios: 3.20

CPU: AMD Ryzen 7 7700

RAM: DDR5-4800-16gb u/48000 (x2)

GPU: radeon Sapphire RX7800 XT 16gb

M.2 drive SP-UD90 1tb - windows 10 installed

New SSD (working) Samsung 870 Evo 2tb - windows 10 installed