Boot drive appears in BIOS but isn't recognized as a bootable device.
Boot drive appears in BIOS but isn't recognized as a bootable device.
I was working on upgrading my CPU and GPU, swapping from a Ryzen 7 2700X and RTX 2070 to a Ryzen 7 5800X3D and Radeon 6950XT. After replacing all components and trying to boot, it wouldn’t start at all, not even into BIOS. I noticed the BIOS wasn’t updated for Ryzen 5000 compatibility, so I reinstalled the 2700X to get into Windows and update the BIOS. When I accessed BIOS, the boot manager didn’t recognize my usual drive. The list showed all my drives—Samsung 980 Pro (250GB), WD Blue SSD, and Toshiba HDD—but the OS drive wasn’t listed as a boot option. My tech support colleague advised clearing CMOS, which I did after removing the battery for about 20 minutes, then reinserting it. After restarting and entering BIOS, the OS drive appeared again. I downloaded new drivers, restarted without issues, and went ahead to update the BIOS. My motherboard is an ASUS TUF GAMING X570-PLUS (WiFi), and I updated it using the latest BIOS from the ASUS site with the ASUS AI suite III tool. The update completed smoothly, but when I tried to boot via BIOS afterward, the drive was missing once more. I attempted to clear CMOS again without success, inspected every BIOS setting, but found nothing unusual. I also tried booting with only the OS drive connected and all others plugged in. Despite these steps, I’m still stuck—no guidance on what’s causing the issue. I prefer not to erase the drive and reinstall Windows because I risk losing important data. Any advice would be greatly appreciated.
System specs:
- OS: Windows 10 Education 64-bit
- CPU: Ryzen 7 2700X / Ryzen 7 5800X3D
- GPU: ASRock AMD Radeon RX 6950 XT Phantom Gaming
- PSU: Seasonic USA FOCUS GX-750 (overclocked)
- Hard drives:
• Samsung 980 Pro SSD – 250GB
• WD Blue 2.5" SSD – 1TB
• Toshiba 3.5" HDD – 1TB
I’m seeking help without resorting to a full wipe and reinstall.