[SOLVED] Boot order resetting after restart

[asus2786]

Hi,

My problem is that whenever I choose to restart the PC, not shutdown, the boot order priority resets and thus I'm unable to boot. Windows Boot Manager which should be the first option goes to the 3rd one. The weird thing is that sometimes I need to change the boot order twice or more because it seems like the BIOS is not saving it (every other setting is saved).

The motherboard is Gigabyte B450 Aorus Elite with f52f BIOS version. Is there any way to lock the boot order from changing? And what could be the cause of that?

EDIT:
Here's how the boot order should look like:
Boot Option #1: Windows Boot Manager
Boot Option #2: ADATA SX8200 Pro
Boot Option #3: ADATA SX8200 Pro

When the boot order switches/resets, the windows boot Manager goes to 3rd place.

 

[Vic 40]

See if changin the motherboard battery helps.

Update chipset drivers as wel.
AMD Drivers and Support for Radeon, Radeon Pro, FirePro, APU, CPU, Ryzen, desktops, laptops

The bootmanager is on what?

 

[SkyNetRising]

Here's how the boot order should look like:
Boot Option #1: Windows Boot Manager
Boot Option #2: ADATA SX8200 Pro
Boot Option #3: ADATA SX8200 Pro

When the boot order switches/resets, the windows boot Manager goes to 3rd place.

Disable legacy boot.
Windows Boot manager will remain the only option then.

 

[asus2786]

It seems like the boot order is not changing, at least for now. I updated the BIOS and set it to UEFI only (CSM disabled).