Question Hard drives missing from boot menu after BIOS reset to default settings

[UCJackCrosss]

Hello! I am having some trouble turning on my PC at the moment. It started after I had reset my BIOS to default settings. I noticed all of my hard drives had been removed from the boot order, and I can't seem to be able to add them to my boot menu. When I go to view my hard drives in BIOS, they are all still there, just not showing up in the boot menu. I tried switching from AHCI to RAID mode but still couldn't find my drives. Any and all advice would be much appreciated, thanks in advance!

RESOLVED: PC needed to go into CSM mode instead of UEFI mode and it booted fine.

 

[Lutfij]

Welcome to the forums, newcomer!

When posting a thread of troubleshooting nature, it's customary to include your full system's specs. Please list the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
include the age of the PSU apart from it's make and model. BIOS version for your motherboard?

Were you running a RAID setup prior to the BIOS reset?

 

[UCJackCrosss]

Hi, thanks for responding!
The specs are as follows:
CPU: AMD Ryzen 9 5900X
CPU cooler: MSI MAG CORELIQUID 240R
Motherboard: MSA X570-A Pro
Ram: Corsair Vengeance DDRR 16GB
SSD/HDD: Seagate FireCuda 530 2TB
GPU: Nvidia RTX 4080
PSU: Be Quiet BN279 PURE POWER 10 700 W (bought July 2017)
Chassis: Game Max Volcano Gaming Case
OS: Windows 10
Monitor: Acer Predator X34

BIOS version for your motherboard? MSI Click BIOS 5.

I believe I was running setup in AHCI, but I couldn't say for certain.