Pc Boots up, power save mode after windows logo?

[NomNom]

Pc Boots up, shortly after goes into power save mode.

So I've got a PC here today and for some odd reason when it boots up it goes into power save mode, anyone had this problem before?

The internet is full of threads about this but I am yet to find a working fix.

The Pc is running on Windows 7, and the monitor it uses is a LG branded one.



I will post more information as I get it.

 

[supersunbird]

So I've got a PC here today and for some odd reason when it boots up it goes into power save mode, anyone had this problem before?

The internet is full of threads about this but I am yet to find a working fix.

The Pc is running on Windows 7, and the monitor it uses is a LG branded one.



I will post more information as I get it.

Do you mean the screen goes off?

Boot into safe mode and uninstalled the graphics drivers (then reinstall with newest), thats my guess.

 

[The_Unnamed]

Desktop resolution / refresh rate set to high for the monitor?
Boot into VGA mode (Pressing F8 before windows screen)

 

[NomNom]

Do you mean the screen goes off?

Boot into safe mode and uninstalled the graphics drivers (then reinstall with newest), thats my guess.

Yeah the screen goes off.

Yeah thanks I have done that going to see what comes of it.

Desktop resolution / refresh rate set to high for the monitor?
Boot into VGA mode (Pressing F8 before windows screen)

Not that I know of, because I connected the Pc to my screen and it worked.

Thanks will give that a try if I still have a problem.

 

[NomNom]

Desktop resolution / refresh rate set to high for the monitor?
Boot into VGA mode (Pressing F8 before windows screen)

It doesn't show anything at all.

Ok gents I still have the same problem, now what?

Thinking of just formatting and reinstalling the Pc.

 

[The_Ogre]

It doesn't show anything at all.

Ok gents I still have the same problem, now what?

Thinking of just formatting and reinstalling the Pc.

Keep tapping that F8 key after your BIOS screen disappears

 

[supersunbird]

Not that I know of, because I connected the Pc to my screen and it worked.

Thanks will give that a try if I still have a problem.

Wait... when your screen is connected to the PC is works fine and your screen doesn't go black?

 

[NomNom]

Wait... when your screen is connected to the PC is works fine and your screen doesn't go black?

Yes, but when the Pc is connected to the LG screen it goes into power saving mode.

 

[supersunbird]

And when your PC is connected to the LG screen?

LG screen could be faulty.

 

[vinodh]

Are you connecting the monitor to the PC's correct graphics port? Maybe it has a dedicated card and you have it hooked up to the onboard graphics?

 

[NomNom]

I've confirmed that the screen is at fault and not the Pc, thanks all.

 

[supersunbird]

Pleasure

 

[bromster]

For future reference, sometimes the monitor works during POST, but when Windows starts, due to conflicting VGA Card / Intel HD 3000 drivers it tries to send the display through the motherboard's onboard graphics port. Hence the screen goes blank until you swap the monitor cable from the VGA card to the motherboard.

This conflicting driver problem is not uncommon with the i-series CPUs. The solution for me was to use safe mode to uninstall the intel HD3000 drivers, or to disable them in the device manager.