Question Motherboard BIOS black screen ?

Aug 11, 2022
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Basically I am running a msi z390-a-pro motherboard and cant view the bios or bios logo once I set my bios to Uefi mode. Now it works in legacy mode but windows 11 needs uefi mode. I tried taking out cmos battery, then I can load to bios but it's set back to legacy. I tried changing the GPU from an AMD Radeon RX 590 to an Nvidia 2060 . I could load into the bios uefi mode for a couple of days but then it broke again. I can't keep changing my gpus back and forth. What's causing this problem?

My processor is i5-9400f and using Corsair ddr4 3000 mhz vengeance Ram. Please any help is appreciated.
 

Ralston18

Titan
Moderator
Update your post to include full system hardware specs and OS information.

This motherboard?

https://download.msi.com/archive/mnu_exe/mb/E7B98v1.2.pdf

Verify that I found the applicable User Manual.

Refer to the User manual to double check all current connections and configurations.

For example with memory:

"Always insert memory modules in the DIMMA2 slot first "
( Source: Physically numbered Page 26.)

Clear CMOS per the instructions provided on physically numbered Page 35.

Failing that, try replacing the CMOS battery with a new fresh battery as a matter of elimination.

While the system is powered down, unplugged, and the case is open:

Clean out dust and debris.

Verify by sight and feel that all cards, connections, RAM, jumpers, and case panel connections are al fully and firmly in place.

Use a bright flashlight to inspect for any signs of damage.

Hopefully just some configuration error of omission or commission.
 

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