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Windows 7: Can't clear CMOS

12 May 2010   #1
Villiam

Windows 7
 
 
Can't clear CMOS

Yesterday I was, foolishly, messing around in BIOS. I changed the Primary Video Adapter from PCI to onboard, don't ask me why. Next I found that my screen went black. No information from the computer is received through the cabel even though the computer is powered on. I have tried resetting CMOS and removing the battery on motherboard but no good.

What should I do? Please help!


My System SpecsSystem Spec
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12 May 2010   #2
Jonathan_King

Windows 7 Professional x64
 
 

Welcome to SF!

Try removing the PCI card and using the onboard ports until you get the BIOS switched back.

You might not even have to remove the video card. Just try the onboard ports for now.
My System SpecsSystem Spec
12 May 2010   #3
Villiam

Windows 7
 
 

Hi!

Thanks for the quick reply!

But if I remove the PCI card I have nowhere to plug my monitor, or am I misunderstanding?
My System SpecsSystem Spec
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12 May 2010   #4
Jonathan_King

Windows 7 Professional x64
 
 

You should have another monitor port on your motherboard somewhere. Take a look at the back of your machine.
My System SpecsSystem Spec
12 May 2010   #5
zzz2496

Windows7 Ultimate 64bit
 
 

When you remove the battery, you need to unplug your computer... It need to be completely unplugged. Leave it for 2-3 minutes... It'll reset by then.

zzz2496
My System SpecsSystem Spec
12 May 2010   #6
Gilly

 

Quote   Quote: Originally Posted by Villiam View Post
Hi!

Thanks for the quick reply!

But if I remove the PCI card I have nowhere to plug my monitor, or am I misunderstanding?
ive just cleared my cmos by moving the jumpers after trying overclocking ram failed
With just the power lead inserted ,as soon as i heard the bleep confirming its posted
plug everything bag in and it works
but ive only ever done it on 2 asus boards

edit ---to post above ive cleared cmos before with it plugged accidently
and replaced a cpu aswell
My System SpecsSystem Spec
12 May 2010   #7
stormy13
Microsoft MVP

Win 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by Jonathan_King View Post
You should have another monitor port on your motherboard somewhere. Take a look at the back of your machine.
To take it a step further, here are the specs for the motherboard in question,

Motherboard Specifications, A8M2N-LA (NodusM) - HP Customer Care (United States - English)

The blue #12 port is the onboard video connector. Connect your monitor to that and enter the bios and make the necessary changes, then reconnect it to the video card.
My System SpecsSystem Spec
12 May 2010   #8
Dwarf

Windows 8.1 Pro RTM x64
 
 

I would also temporarily remove your video card. Once you have done that, go back into your BIOS and set the appropriate option to Auto. You should now be able to reinsert your video card and use that. Don't forget to disconnect your system from the mains supply whilst you are removing/reinserting your video card.
My System SpecsSystem Spec
12 May 2010   #9
Villiam

Windows 7
 
 

Thanks alot, I got it working now. But I think I have messed things up trying to fix the problem, all kinds of weird things happening. Think I'll try to reinstall windows and hope its not damaged hardware.

Thanks again guys!
My System SpecsSystem Spec
12 May 2010   #10
Jonathan_King

Windows 7 Professional x64
 
 

Keep us posted, and if there's anything in particular you need help with, let us know.
My System SpecsSystem Spec
Reply

 Can't clear CMOS




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