F5F Stay Refreshed Hardware Desktop The graphics card is not functioning following the deactivation of CSM support and the activation of custom secure boot.

The graphics card is not functioning following the deactivation of CSM support and the activation of custom secure boot.

The graphics card is not functioning following the deactivation of CSM support and the activation of custom secure boot.

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DiamondDasher3
Member
128
12-01-2022, 08:18 PM
#1
I'm attempting to turn on Secure Boot on my PC, but after turning off CSM I encounter a black screen during BIOS boot. Since my OS is set to UEFI, the old BIOS isn't the problem. I need to disable CSM so that Secure Boot can work for some apps in Windows 11. I've already reset the CMOS and replaced the battery, but when I try again to turn off CSM, the same issue keeps happening. Do you know what steps I can take without completely wiping and reinstalling Windows?

Relevant System Info:
MB: ASRock b550m Pro4
fTPM enabled
RAM Overclocked to 3800 mHz
CSM disabled
Secure Boot disabled
CPU: Ryzen 5 5600
Boot Drive: Adata xpg s11 pro
GPU: ZHUIFENG(Aliexpress) RTX 3080 10 gb
Windows installed in UEFI mode
I'm using hdmi, so the advice from this thread won't help.
D
DiamondDasher3
12-01-2022, 08:18 PM #1

I'm attempting to turn on Secure Boot on my PC, but after turning off CSM I encounter a black screen during BIOS boot. Since my OS is set to UEFI, the old BIOS isn't the problem. I need to disable CSM so that Secure Boot can work for some apps in Windows 11. I've already reset the CMOS and replaced the battery, but when I try again to turn off CSM, the same issue keeps happening. Do you know what steps I can take without completely wiping and reinstalling Windows?

Relevant System Info:
MB: ASRock b550m Pro4
fTPM enabled
RAM Overclocked to 3800 mHz
CSM disabled
Secure Boot disabled
CPU: Ryzen 5 5600
Boot Drive: Adata xpg s11 pro
GPU: ZHUIFENG(Aliexpress) RTX 3080 10 gb
Windows installed in UEFI mode
I'm using hdmi, so the advice from this thread won't help.

K
KanayOne
Member
212
12-01-2022, 10:23 PM
#2
how was the installation of windows in UEFI mode carried out on another system? are the drives set up with GPT instead of MBR? use MBR2GPT.EXE /allowFullOS if not
K
KanayOne
12-01-2022, 10:23 PM #2

how was the installation of windows in UEFI mode carried out on another system? are the drives set up with GPT instead of MBR? use MBR2GPT.EXE /allowFullOS if not

T
tobytoetable
Junior Member
13
12-01-2022, 10:38 PM
#3
1st, regarding windows in UEFI. I'm not sure because the shop where I built my PC preinstalled it for me.
2nd, about disks in GPT. How can I check it? When I try to use mbr2gpt, it says I should use Windows PE.
P.S., sorry for the poor English, I really don't understand it.
T
tobytoetable
12-01-2022, 10:38 PM #3

1st, regarding windows in UEFI. I'm not sure because the shop where I built my PC preinstalled it for me.
2nd, about disks in GPT. How can I check it? When I try to use mbr2gpt, it says I should use Windows PE.
P.S., sorry for the poor English, I really don't understand it.