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Windows 7: Cannot see POST, screen is off until Windows is Loading

25 Feb 2012   #1

Windows 7 Professional x64
 
 
Cannot see POST, screen is off until Windows is Loading

Very strange problem happened after I reinstalled Windows 7.

My computer boots and runs fine, no issues. Whenever I turn it on from cold or restart, the screen is off up until Windows starts loading.

If I keep pressing DEL during boot, the BIOS comes up on the screen. Exit the BIOS and same, nothing on the screen until windows is loading.

I have one PCI-E graphics card going to one monitor, and I tried changing in the BIOS PEG and PCI for the graphics card but with no luck.

Any idea what is causing this?

My System SpecsSystem Spec
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25 Feb 2012   #2
whs

Microsoft Community Contributor Award Recipient

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Do I understand this right - you are not getting a BIOS splash screen. And when you press DEL, do you get the BIOS setup or the splash screen.
My System SpecsSystem Spec
25 Feb 2012   #3

Windows 7 Professional x64
 
 

I get the bios setup. Apart from that, the screen will stay off until windows has loaded
My System SpecsSystem Spec
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26 Feb 2012   #4
whs

Microsoft Community Contributor Award Recipient

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

So it is a BIOS problem. Is there a BIOS firmware update for your board - maybe you should flash that.
My System SpecsSystem Spec
26 Feb 2012   #5

Windows 7 Professional x64
 
 

I was already running the latest BIOS. I downgraded it and then upgraded it again but either one did not work
My System SpecsSystem Spec
26 Feb 2012   #6
whs

Microsoft Community Contributor Award Recipient

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

That leaves some BIOS setting which is not right.
My System SpecsSystem Spec
26 Feb 2012   #7

Windows 7 Pro 64bit build 7601 SP1
 
 

I think that's an option on some motherboards. To the splash screen on/off.
My System SpecsSystem Spec
26 Feb 2012   #8

Windows 7 Professional x64
 
 

My motherboard has the option to "Show Logo on boot" or something like that instead of the POST. That is turned off but nothing shows. I can try switching it to see

One thing I noticed when updating the BIOS is that the screen is slow to switch on. I press DEL to enter the BOIS and then I have to wait 10 seconds or so before the screen will come on.

I've even pulled the battery out and reset the BIOS but still no screen on POST
My System SpecsSystem Spec
27 Feb 2012   #9

Windows 7 Professional x64
 
 

When I went back and forth between FW versions, all the BIOS settings were reset. I changed some settings but did not find anything. Seems like nothing will make the screen turn on during POST

Also noticed that when I log off my User Profile, the screen turns off for 10 seconds or so before I can see the different profiles again.

Everything else is working fine apart from switching profiles and bootup. Strange, my motherboard is a Gigabyte GA-870A-UD3if that helps.
My System SpecsSystem Spec
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 Cannot see POST, screen is off until Windows is Loading





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