I think I borked my computer.

I can't boot into Windows anymore after installing a new M.2 drive. I'm not the most tech savvy person, so I'll explain the issue the best I can. My computer has two SSDs, one is a 1TB that has Windows 11 installed, and the other a 4TB SSD used for storage. After I installed the M.2, it now can't detect any bootable drives and goes straight to the BIOS.

I can see that both the 4TB and M.2 are detectable, but not the one with the OS. I've checked all the SATA cords to be sure they didn't get unplugged and the SSDs themselves. The computer and everything else looks ok from what I can tell, but I can't figure out the problem.

Please, I need to see if I can fix this screw up myself before taking it to a professional sometime tomorrow. If it will help, the motherboard is a Rog Strix B550-F Gaming WiFi II.