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Windows 7: PC not booting.

20 Nov 2014   #1
guilherme1

Windows 7 Home Premium Edition 64-bit
 
 
PC not booting.

Hello everyone,
I come here to look for help because I've noticed that if I boot my PC and I have my monitor turned off the computer won't boot, it doesn't even turn my keyboard lights on, and if I turn the monitor on it shows a no output message.

Would like to know if this is related to my graphics card and how to fix it.

Thanks.


My System SpecsSystem Spec
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20 Nov 2014   #2
RoasterMen

Windows 10 Pro 64-bit
 
 

Try to check if one of your RAM is tightly placed.
My System SpecsSystem Spec
20 Nov 2014   #3
Sugarcake18

Windows 7 pro 64bit
 
 

you can also check the power connection to the motherboard is tightly in there, check and make sure that the power cord is in the power supply good, and last if not done already make sure that another device will work in that outlet.
My System SpecsSystem Spec
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20 Nov 2014   #4
indianacarnie

Windows 10x64 Build 1709
 
 

Welcome to the forums guilherme1!

Have you tried a startup repair? Heres a link to a tutorial on how to do that if you haven't before : Startup Repair
My System SpecsSystem Spec
13 Dec 2014   #5
guilherme1

Windows 7 Home Premium Edition 64-bit
 
 

Sorry for late response, I have done what you instructed me and so far so good, the PC is booting normally
My System SpecsSystem Spec
13 Dec 2014   #6
PeaB4YouGo

Microsoft Windows 10 Home Build 15036
 
 

I'm surprised that those suggestions worked.

Someone explain to me why having your monitor turned off would make a diff as to how the system boots? I'm not being snarky. I really don't get it. Why would it matter to the system whether the monitor was powered up or not?
My System SpecsSystem Spec
13 Dec 2014   #7
MrNeeds

Windows 7 Ultimate x64 SP1
 
 

Quote   Quote: Originally Posted by PeaB4YouGo View Post
I'm surprised that those suggestions worked.

Someone explain to me why having your monitor turned off would make a diff as to how the system boots? I'm not being snarky. I really don't get it. Why would it matter to the system whether the monitor was powered up or not?
If the display has no power going to it, it will not boot like a monitor not being plugged into the display at all.
My System SpecsSystem Spec
13 Dec 2014   #8
PeaB4YouGo

Microsoft Windows 10 Home Build 15036
 
 

Quote   Quote: Originally Posted by MrNeeds View Post
Quote   Quote: Originally Posted by PeaB4YouGo View Post
I'm surprised that those suggestions worked.

Someone explain to me why having your monitor turned off would make a diff as to how the system boots? I'm not being snarky. I really don't get it. Why would it matter to the system whether the monitor was powered up or not?
If the display has no power going to it, it will not boot like a monitor not being plugged into the display at all.
I'm not sure that makes sense to me. Are you saying that the BIOS won't allow the machine to post or load the OS because the BIOS doesn't see a monitor attached to the video card?

The OP said: I come here to look for help because I've noticed that if I boot my PC and I have my monitor turned off the computer won't boot, it doesn't even turn my keyboard lights on...

He didn't say "the PC doesn't boot if I disconnect my monitor from the vid card". When my PC boots, it turns my monitor on, automatically. If I manually turn off my monitor then boot my PC, the monitor comes back on. If I disconnect my monitor from the vid card, I'd have to remote in thru the network to see it, but it boots and does everything that my system does when the monitor is hooked up. This guy couldn't even get his keyboard to react...

Now, if Startup Repair did the job for him, I guess this is all moot. And if re-seating his vid card did the job, then, cool. I just couldn't understand how having the monitor turned on or off made a diff when booting. From the original post, I got the impression that everything booted fine when the monitor was turned on.
My System SpecsSystem Spec
18 Dec 2014   #9
essenbe

Windows 10 Pro/ Windows 10 Pro Insider
 
 

PeaB4YouGo, the monitor being on or off makes no difference on whether the PC boots or not. Mine boots either way. Besides servers do it constantly, it's called 'deadheading'. The Monitor is just a way to see what is going on. Your computer would do the same things if your monitor was on or off. If it was off, you just couldn't see them doing it. I suspect he had some other problem, but the monitor was not one of them, on or off.
My System SpecsSystem Spec
18 Dec 2014   #10
Layback Bear

Windows 10 Pro. 64/ version 1709 Windows 7 Pro/64
 
 

I have one of my PC's hooked to a 40 in. screen that must be turned on separately. Some times I forget and the PC's boots normal almost.
If I turn on the screen late all my desktop icons and scattered all over the place. Other than that no problems.

My other PC doesn't care one way or the other. On or off it boots and things are normal when I do turn on the screen.

If there was something wrong with the monitor it would show up all the time not just on boot is my thinking.

I'm curious what monitor is being used.
My System SpecsSystem Spec
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 PC not booting.




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