UEFI not accessible without CMOS reset.

[Senzelian]

Got a little problem. I can't access the UEFI / BIOS anymore, unless I reset the CMOS.

The BIOS splash screen does not appear during boot-up, even tho fast boot is disabled. I have never the opportunity to even press F2 is I wanted. And if I hold it down during boot-up, it simply won't boot.

If I hold down the shift-key while clicking restart in Windows 10 to get into the advanced settings and try to get into the UEFI from there, the PC simply end up in a boot loop.

 

Interestingly enough I had this happen on another AsRock X570 board and with a Ryzen 2700 aswell.

I wonder if my GPU plays a role in this or even my boot SSD.

 

XMP and Thunderbolt 3 are enabled.

CSM is disabled.

 

Specs:

 

AMD Ryzen 7 5800X

AsRock X570 Taichi

2x 16GB 3000Mhz CL15

EVGA GTX 1080

Corsair MP300 1TB (C:) , Samsung PM9A1 2TB (D:)

beQuiet super power or whatever 11 Platinum 750w (Same problem with an AX760i)

 

[ShennyG]

Sounds like a corrupted bios. Have you tried overwriting it? Assuming you have a motherboard that supports bios flashback. 

 

though if this has happened before with the same hardware but a different motherboard, it sounds like your theory about it being related to another piece of hardware is plausible. 

[Guest]

I just junked an Asus M4A79 for the exact same reason. Every time posted the board, had to clear cmos. 

 

RMA the board.