Performed a BIOS update and things don't seem quite right.

[qu]

Hi all,

Firstly some brief spec:
ASUS ROG Maximus XI Hero Motherboard
Intel Core i7 9700K
Intel 660p Series M.2 NVMe SSD 1TB
ASUS GeForce RTX 2070 Turbo 8GB

I was attempting to flash my motherboard via USB. As I was doing so, I accidentally pressed the Clear CMOS button instead of the Flash Bios button.
Now when I start the PC, I get taken to the BIOS page. There under Boot > Boot Option Priorities > Boot Option #1, M2 drive isn't available for selection.

Under Advanced\NVMe controller and Drive Information, the drives are there. I finally managed to get into Windows when I enabled CSM. But now the startup is slow. It's not 'instantaneous' anymore. When I disable CSM, the NVMe drive doesn't show up.

Previously before the update, I never even get to see the Windows logo. It would just 'zoom' straight to the desktop. Now I see the Windows logo, the login screen and then the desktop.

Been playing around with different settings but I suspect something got messed up in terms of the booting from UEFI.
In CSM, when I choose to only boot from UEFI, the NVMe drive with the OS doesn't show up as a boot option either.

Inputs/Insights from those more experienced would be awesome. Thanks in advance.

[Arne_Saknussemm]

"Windows boot manager" should be first boot option...does that appear?

If you cleared CMOS instead of pressing BIOS flashback then nothing should have happened ...just a cleared CMOS...or do you mean you pressed halfway through the flash?

If so just BIOS Flashback the BIOS again

[qu]

Arne Saknussemm wrote:
"Windows boot manager" should be first boot option...does that appear?

If you cleared CMOS instead of pressing BIOS flashback then nothing should have happened ...just a cleared CMOS...or do you mean you pressed halfway through the flash?

If so just BIOS Flashback the BIOS again

"Windows boot manager" doesn't appear as a boot option.
When attempting to flash the BIOS, I accidentally clicked on Clear CMOS button instead. After which I proceed to flash the BIOS.

Now what I see under the Boot screen is this:

Note: With CSM disabled:


1.https://www.dropbox.com/s/7i9yo36u615ivpa/Photo%2022-2-19%2C%207%2020%2031%20am.jpg?dl=0
2. https://www.dropbox.com/s/u5o94nx60c0dud7/Photo%2022-2-19%2C%207%2020%2026%20am.jpg?dl=0

With CSM Enabled:
1. https://www.dropbox.com/s/hef9u56by8sezm4/Photo%2022-2-19%2C%207%2019%2012%20am.jpg?dl=0
2. https://www.dropbox.com/s/6nm7ypqql8s7wta/Photo%2022-2-19%2C%207%2019%2016%20am.jpg?dl=0

[Arne_Saknussemm]

Not sure what to suggest apart from a clean UEFI install...to target drive with all other drives disconnected

[qu]

Arne Saknussemm wrote:
Not sure what to suggest apart from a clean UEFI install...to target drive with all other drives disconnected

Yeah. Ended up doing that. All good now. LOL.Thanks again.