Can't access BIOS - system boots too fast

Nick1881 · 8 Mar 2020 at 23:35

So I built my new Ryzen 7 system last week, it's been a while and I forgot about UEFI before Windows installation.

Motherboard is ASUS ROG Strix B450-I with 3700X

I realised Windows was running in legacy mode. So I followed a guide to convert it to UEFI via recovery and entering a command.

I rebooted and went into the bios and disabled CSM, I heard this can slow boot down.

Well now it's super fast, my keyboard lights up, then goes off, my display goes off and then they both come back on and I'm at the Windows login screen. I don't even see the Asus splash screen, my monitor is off at the time.

I tried hitting F2 and del during boot but they do nothing.

I tried doing a recovery boot and selecting the option to go to BIOS but it just reboots straight back into Windows.

Any ideas?

bremen1874 · 8 Mar 2020 at 23:43

Keep tapping the del key quickly while it boots. If it gets to Windows restart and try again.

If all else fails reset the bios.

b00merang69 · 8 Mar 2020 at 23:45

Should be a button on your Mobo or just PRESS SHIFT+MOUSE CLICK RESTART MENU BUTTON in Windows to get recovery options to appear, pick UEFI.

BTW, most desktops its DEL to enter Bios.

Nick1881 · 8 Mar 2020 at 23:55

I tried tapping del key fast, still nothing.

I tried the windows recovery and picking UEFI, still boots back to Windows.

Also to top it all off now my network connection randomly drops out every few minutes, it hasn't done this before only since I did the above changes this evening

b00merang69 · 9 Mar 2020 at 00:10

I had that issue once where I couldn't do so from Windows, fixed down the line by a clean install after an one of the bi annual updates.

Reset the bios and reload your profile once in there.

Are you sure the Asus Rog Mobo does not have a button to get you into bios.

EDIT: Looked at your Mobo manual and it does not the DIRECT KEY button, there is Clear CMOS Jumper) < I thought this was a thing of the past as most now are a button on rear I/O.

Jamin280672 · 9 Mar 2020 at 02:10

In windows goto Settings > Recovery > Advanced Startup > Restart Now Button

The PC will reboot, when you get to the blue screen select Troubleshoot > Advanced Options > UEFI Firmware Settings > Restart

The PC will restart, dont touch anything, the PC will enter the bios itself, once in, turn off / disable fastboot.

b00merang69 · 9 Mar 2020 at 02:28

He already said he cannot get that to appear, I would say holding shift and restart is less moves.

Jamin280672 · 9 Mar 2020 at 02:47

b00merang69 said:
He already said he cannot get that to appear, I would say holding shift and restart is less moves.

Ahh missed that part soz, speed reading........only option then is too clear the cmos using the jumper on the board.

b00merang69 · 9 Mar 2020 at 03:01

Resistance · 9 Mar 2020 at 03:14

Removed as its been posted before

b00merang69 · 9 Mar 2020 at 03:20

Did you not bother read the above posts, where that has basically been posted twice?

He cannot get to that screen (I had this issue in the past).

Resistance · 9 Mar 2020 at 03:26

b00merang69 said:
Did you not bother read the above posts, where that has basically been posted twice?

He cannot get to that screen (I had this issue in the past).

above post edited

hyperseven · 9 Mar 2020 at 03:31

remove the boot drive.

b00merang69 · 9 Mar 2020 at 03:38

Looking at his Mobo's manual it looks like the Clear CMOS Jumper is his best option, if he has any OC profiles hope they are saved to Profile slots.

Nick1881 · 9 Mar 2020 at 20:57

Thanks guys.

I guess I'll leave it for now as I don't need to change anything else.

I was going to enable DOCP as I didn't before, I was looking for XMP, didn't realise that was an Intel thing.

I've set my ram to 3600 and I'm not bothered about overclocking it, this system is super fast.

If I need to make changes then I will clear the CMOS.

Looks like my weird network drop outs have stopped, think it was something to do with DHCP on my server.

Danny75 · 10 Mar 2020 at 20:27

hyperseven said:
remove the boot drive.

This.

Nick1881 · 10 Mar 2020 at 20:35

That would have been the first thing I tried but it’s an M.2 drive, bit more difficult that just popping out a sata cable. It’s also got a heat sink on it and because the ITX board and case access may be tricky.

I would also have tried a ps2 keyboard but there’s no ps2 ports. I also googled this problem, I’m not the only one, some people mentioned trying the on board graphics but I don’t have any with my cpu.

I love new technology but it does seem to make things more difficult.

drakulton · 10 Mar 2020 at 22:19

Start the PC up and before windows loads properly, hold down the power button to shut it down. Do this two more times and windows should go into recovery mode and should show options to get into the bios.