Secure Boot causing GPU to not post

Insights_Itay · August 13, 2025

Hey,
So after enabling Secure Boot in order to play BF6 beta in the past week, suddenly mid zoom call yesterday my monitor turned black and just didn't receive and input.
I was doing usual troubleshoot to see what happened.
Tried unseating the RAM and checking if it's the RAM fault, tried a different GPU, and at last tried the iGPU which worked.

After going to sleep and waking up today I was watching some reels until I encountered this one which basically shows his customer's PC that has almost the same problem.
I updated BIOS and booted using iGPU and disabled Secure Boot and now everything works

Anybody got a clue how to fix this? I want to play BF6 beta in this weekend and as of now I cannot.

PC Specs:
Motherboard: MSI Pro B650M-P
RAM: 2x16 DDR5 6000MHz CL36 (cannot remember the brand)
CPU: Ryzen 7 9800x3d
GPU: iChill 4x RTX 3080Ti
After updating - BIOS Ver - 7E27v1G

UPDATE:
Updated bios to latest beta

The First time the GPU worked then suddenly it stopped working

then I put the old one back and it worked but now sometimes when I restart it still doesn’t show anything

could it be the BIOS?

Edited August 14, 2025 by Insights_Itay

GuiltySpark_ · August 13, 2025

Sure sounds a lot like post hoc ergo propter hoc.

To play the beta tomorrow you will need SB enabled, really no way around that. Its a pretty normal feature that will be enabled on all modern systems, or should be.

You have two BIOS updates beyond the one you have installed you could try.

Insights_Itay · August 13, 2025

Just now, GuiltySpark_ said:

Sure sounds a lot like post hoc ergo propter hoc.

To play the beta tomorrow you will need SB enabled, really no way around that. Its a pretty normal feature that will be enabled on all modern systems, or should be.

You have two BIOS updates beyond the one you have installed you could try.

The BIOS versions are beta labelled so I wasn't sure if I should
But the thing is - since Wednesday it all worked fine and then suddenly failed (and it wasn't the first time SB was on)