F5F Stay Refreshed Hardware Desktop Question Strange Restart After Turning On Secure Boot

Question Strange Restart After Turning On Secure Boot

Question Strange Restart After Turning On Secure Boot

C
Charliemc909
Posting Freak
898
12-06-2021, 04:50 PM
#1
Hello everyone,
So I've been trying to get my PC ready for Windows 11 and also set things up so I can enable Resizable Bar for my new GPU. Here's whats happening:
First thing, I realized my drive (which is a cloned drive from years ago) was set to MBR. After some research, I figured out that I needed to convert it to GPT. I successfully did that with the help of the Windows tool. After I did that, I went into my BIOS and Disabled CSM and turned Secure Boot "On" and rebooted.
This is where the weirdness started. When the PC first turned on, it just stayed with black screen. Nothing. Then after about 30 seconds, the Windows log-in screen appears. There was no post screen with the motherboard name or options to enter the BIOS. So I tried again. The same thing happened. There was no way to get into my BIOS. So I tried to clear my CMOS. I tried every way imaginable, but nothing worked. So I shut down, unplugged, and disconnected all my drives including my M.2. I rebooted and I was finally able to get into my BIOS. From here is enabled CSM and installed all my drives. Now everything is working as it did before, but I still cannot enable Secure Boot.
What in the world am I doing wrong? Here's the parts that I'm using:
Gigabyte B450 Aorus Elite
AMD Ryzen 9 3900X
Radeon RX 590 (trying to upgrade to an ARC B580
I'm currently on BIOS version F66.
So any ideas? I'd love to get Secure Boot enabled and still boot with my post screen. There has to be something I'm missing, but I just can't seem to figure it out! Any suggestions or advice would be greatly appreciated.
Thanks!
C
Charliemc909
12-06-2021, 04:50 PM #1

Hello everyone,
So I've been trying to get my PC ready for Windows 11 and also set things up so I can enable Resizable Bar for my new GPU. Here's whats happening:
First thing, I realized my drive (which is a cloned drive from years ago) was set to MBR. After some research, I figured out that I needed to convert it to GPT. I successfully did that with the help of the Windows tool. After I did that, I went into my BIOS and Disabled CSM and turned Secure Boot "On" and rebooted.
This is where the weirdness started. When the PC first turned on, it just stayed with black screen. Nothing. Then after about 30 seconds, the Windows log-in screen appears. There was no post screen with the motherboard name or options to enter the BIOS. So I tried again. The same thing happened. There was no way to get into my BIOS. So I tried to clear my CMOS. I tried every way imaginable, but nothing worked. So I shut down, unplugged, and disconnected all my drives including my M.2. I rebooted and I was finally able to get into my BIOS. From here is enabled CSM and installed all my drives. Now everything is working as it did before, but I still cannot enable Secure Boot.
What in the world am I doing wrong? Here's the parts that I'm using:
Gigabyte B450 Aorus Elite
AMD Ryzen 9 3900X
Radeon RX 590 (trying to upgrade to an ARC B580
I'm currently on BIOS version F66.
So any ideas? I'd love to get Secure Boot enabled and still boot with my post screen. There has to be something I'm missing, but I just can't seem to figure it out! Any suggestions or advice would be greatly appreciated.
Thanks!

P
PikachuPro952
Junior Member
15
12-07-2021, 12:31 AM
#2
Discussing the issue of a black screen after enabling Secure Boot on TomHARDware forums.
P
PikachuPro952
12-07-2021, 12:31 AM #2

Discussing the issue of a black screen after enabling Secure Boot on TomHARDware forums.

R
Rodri_Mendes
Member
223
12-09-2021, 10:47 AM
#3
You appear to be prepared to install Windows 11! Just ensure USB boot is prioritized over the SSD while disabling CSM and enabling Secure Boot. Microsoft advises rebooting into the BIOS for quicker Windows booting. From the administrator prompt, type shutdown /r /fw and press Enter. Alternatively, use the GUI method which involves two reboots: Start Menu > Power > Hold Shift and click "Restart" – the system will then restart to the recovery environment. Select Troubleshoot > Advanced options > UEFI Firmware Settings > Restart.
R
Rodri_Mendes
12-09-2021, 10:47 AM #3

You appear to be prepared to install Windows 11! Just ensure USB boot is prioritized over the SSD while disabling CSM and enabling Secure Boot. Microsoft advises rebooting into the BIOS for quicker Windows booting. From the administrator prompt, type shutdown /r /fw and press Enter. Alternatively, use the GUI method which involves two reboots: Start Menu > Power > Hold Shift and click "Restart" – the system will then restart to the recovery environment. Select Troubleshoot > Advanced options > UEFI Firmware Settings > Restart.

S
Sonicgill
Member
57
12-09-2021, 02:07 PM
#4
When working with RX 590, verify if the vbios supports a compatible UEFI driver (GOP).
S
Sonicgill
12-09-2021, 02:07 PM #4

When working with RX 590, verify if the vbios supports a compatible UEFI driver (GOP).