Secure boot

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jester694

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Mar 26, 2023
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I was having to enable secure boot for valorant to be played so I went into my system and made a platform key enabled, enabled secure boot, disabled CSM then saved and exited for restart and now my screen can't find a signal but the computer can still come on as well as the keyboard, mouse, etc.
I even tried taking out the GPU, the RAM and trying to get just cpu to boot up the screen to no avail.
 

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g'day Jester and welcome to the forums.

have you tried resetting the BIOS back to factory settings, since this was working before you made your changes.
on the motherboard there is usually a jumper labelled CLR CMOS (or similar).
look at the motherboard manual for your make/model and it will show you how to use that jumper.

or, just remove the CMOS battery, and the power cord, and press the power button as if you were starting the PC.
this will drain any residual current in the system.
then put the CMOS battery and power cord back in and start the PC, hitting the key (usually F2) to get into BIOS and setup your date/time and other settings according to your needs.
 
Bruce said:
g'day Jester and welcome to the forums.

have you tried resetting the BIOS back to factory settings, since this was working before you made your changes.
on the motherboard there is usually a jumper labelled CLR CMOS (or similar).
look at the motherboard manual for your make/model and it will show you how to use that jumper.

or, just remove the CMOS battery, and the power cord, and press the power button as if you were starting the PC.
this will drain any residual current in the system.
then put the CMOS battery and power cord back in and start the PC, hitting the key (usually F2) to get into BIOS and setup your date/time and other settings according to your needs.
Click to expand...

Closest thing I see is that bottom left part that says CLRMOS1
 

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that'll be it!
now you just have to find out how it clears the BIOS settings.
looks like it's currently jumpered on pin 1 and 2, so it could need moving to pin 2 and 3 - or it could be to remove the jumper altogether.
so dig out the mobo manual, the answer will be in there!
 
Bruce said:
that'll be it!
now you just have to find out how it clears the BIOS settings.
looks like it's currently jumpered on pin 1 and 2, so it could need moving to pin 2 and 3 - or it could be to remove the jumper altogether.
so dig out the mobo manual, the answer will be in there!
Click to expand...
On the 2 and 3 pin the PC won't come on at all. With it off still nothing but PC turns on. Replacing it back to where it was PC is on but screen still not working. Also will the cmos battery be on the mother board and have the letters by it? Or is it the big flat circular lithium one I've already tried removing and replacing back in?
 
yep, it's the flat, round, button cell battery, probably labelled CR2032.
from memory, I think you move the jumper to the other side, and try to start the PC, then turn it off.
but this is where reading the manual help, if you don't have it, go to your mobo manufactures web site and get it!

and if you are removing the battery, you then need to 'start' the PC with the power cable unplugged, as stated earlier!
 
Bruce said:
yep, it's the flat, round, button cell battery, probably labelled CR2032.
from memory, I think you move the jumper to the other side, and try to start the PC, then turn it off.
but this is where reading the manual help, if you don't have it, go to your mobo manufactures web site and get it!

and if you are removing the battery, you then need to 'start' the PC with the power cable unplugged, as stated earlier!
Click to expand...
I've done every top I've found. Last resort is gonna have to be either new PC or a PC store to help
 
OK, let's assume all that mucking around has actually reset the BIOS.
have you tried F2 (or whatever your key is) to get into BIOS?

if your CPU has onboard graphics, have you tried removing the GPU and connecting the monitor to the video port on the motherboard?
 
Bruce said:
OK, let's assume all that mucking around has actually reset the BIOS.
have you tried F2 (or whatever your key is) to get into BIOS?

if your CPU has onboard graphics, have you tried removing the GPU and connecting the monitor to the video port on the motherboard
Click to expand...

Bruce said:
OK, let's assume all that mucking around has actually reset the BIOS.
have you tried F2 (or whatever your key is) to get into BIOS?

if your CPU has onboard graphics, have you tried removing the GPU and connecting the monitor to the video port on the motherboard?
Click to expand...
My screen doesn't come on ever just goes no signal after searching through channels. No matter what I press or plug into
 
last resort before you take it to a repair shop....

strip out all the components and reassemble on a piece of cardboard.
take the opportunity to clean dust buildup off the components.
for starters, only reassemble the parts needed to simply get a signal to the screen.
so no drives, no peripherals, no DVD unit, no GPU (unless your CPU doesn't have dedicated graphics), only one memory stick, not even a mouse - just a keyboard to hit F2 to get you into BIOS.
 
Bruce said:
last resort before you take it to a repair shop....

strip out all the components and reassemble on a piece of cardboard.
take the opportunity to clean dust buildup off the components.
for starters, only reassemble the parts needed to simply get a signal to the screen.
so no drives, no peripherals, no DVD unit, no GPU (unless your CPU doesn't have dedicated graphics), only one memory stick, not even a mouse - just a keyboard to hit F2 to get you into BIOS.
Click to expand...
Only things visibly dusty are the fans and graphics card. Even then it's been working fine with some dust for over 2 years so it's just time to take it to an expert after all the other tips have failed
 
up to you.....

still think it's worth a crack stripping it all down.
you may get lucky and save yourself a trip and some money.
totally your call.
 
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