Screen goes black after disabling CMS in bios

StalePie42 · May 28, 2022

1 hour ago, MustachePotet said:

If you don’t think the PCIE cable is the issue, what do you think is the issue?

CSM provides compatibility for older hardware do you have anything that might require it?

Kilrah · May 28, 2022

Most likely his OS drive isn't formatted GPT/set up for UEFI boot and that's why CSM is needed, but that shouldn't prevent from getting into the BIOS.

Maybe try disconnecting all drives temporarily and see if you can get in the BIOS again...

MustachePotet · May 30, 2022

On 5/28/2022 at 11:14 PM, Kilrah said:

I don't know, there have been a number of people with the same issue over the past months but I don't recall any of the threads I followed getting to a solution with equipment similar to yours. Some had issues with the GPU VBIOS not running with CSM disabled and had to install another card temporarily to be able to get into the BIOS to reenable it but those were old cards, 30 series should have no problem with that.

Alright, I have now tried to change riser cable from PCIE 4 to PCIE 3. Doesn’t work. I have even tried to take out the CMOS Battery out and put it back in. Doesn’t work. I honestly don’t know what to do.

StalePie42 · May 30, 2022

Did you try unplugging the drives to see if you could get into the uefi bios?

MustachePotet · May 30, 2022

2 hours ago, StalePie42 said:

Did you try unplugging the drives to see if you could get into the uefi bios?

I fixed it! After seven hours of trying to fix this, I updated the bios via QFlash and now I have the screen on, BIOS is accessible and I can boot to windows.