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Computer starts, but only shows a black screen

post #1 of 13
Thread Starter 
So today someone brought me their computer hoping I could fix it. They told me that the computer just sat at a black screen so I was like "Ok, i've dealt with this before" well, boy was I wrong. So I turn on the computer expecting it to show the BIOS, boot options, then fail when it starts to boot the operating system. But that's not what happens. You turn on the computer, it runs, but the screen remains black. I've tried 2 different monitors and it does the same thing.


Putting in a graphics card (The computer in question has int. graphics) worked for a moment. I was able to boot into Windows and everything but functional but I forgot to plug in the old keyboard, so I restarted the computer. Afterwards it wouldn't show anything on the screen again.

Anyone have any ideas? I can't reinstall the operating system or anything because nothing shows up on the screen.
Edited by M3T4LM4N222 - 8/1/11 at 1:05pm
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post #2 of 13
sounds like dead mobo or cpu.
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post #3 of 13
Thread Starter 
Quote:
Originally Posted by nbmjhk6;14417980 
sounds like dead mobo or cpu.

That's impossible, I got the computer to boot into Windows after I put in a dedicated graphics card. But after I restarted the computer with the card in it doesn't show anything on the screen again.
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post #4 of 13
Sounds like a dead board to me. Mine does the same exact thing (my P8P67).
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post #5 of 13
That happened to me when my ram wasn't in all the way.
post #6 of 13
Let me reiterate to make sure I understand the problem:-
The computer booted without problem all the way into Windows desktop the first time (without a keyboard plugged in).
You turned it off and plugged in a keyboard and rebooted. This time there is black screen all the time. But all the fans spin and beeps are just normal.

Right?
Tried clearing the CMOS?
post #7 of 13
Thread Starter 
Quote:
Originally Posted by windfire;14418175 
Let me reiterate to make sure I understand the problem:-
The computer booted without problem all the way into Windows desktop the first time (without a keyboard plugged in).
You turned it off and plugged in a keyboard and rebooted. This time there is black screen all the time. But all the fans spin and beeps are just normal.

Right?
Tried clearing the CMOS?

The computer didn't boot perfectly the first time. It booted when I put a 9800GT in it. I turned it on and it worked fine but I forgot to plug the keyboard in (Old keyboard plug) so I turned off the computer and pluged the keyboard in. When I turned it on it wouldn't display anything at all. I've tried clearing the CMOS, removing the battery, and a graphics card.
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post #8 of 13
It's the motherboard....
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Junkyard
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NAStradamous
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HTPC01
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CPUMotherboardGraphicsRAM
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Hard DriveHard DriveOptical DriveCooling
Crucial MX100 256GB WD Green 2TB DVDRW Corsair H50 Push / Pull 
CoolingOSMonitorMonitor
NZXT 120mm fans strapped to stock 7970 cooler Windows 10 Pro Dell 3007WFP Dell 2007FP 
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Dell 2007FP Cheap Toshiba (R.I.P. Ducky) PC Power & Cooling Silencer MKIII 950w Cheap Garbage (free) 
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post #9 of 13
Quote:
Originally Posted by M3T4LM4N222;14418694 
The computer didn't boot perfectly the first time. It booted when I put a 9800GT in it. I turned it on and it worked fine but I forgot to plug the keyboard in (Old keyboard plug) so I turned off the computer and pluged the keyboard in. When I turned it on it wouldn't display anything at all. I've tried clearing the CMOS, removing the battery, and a graphics card.

What do you mean it did not boot 'perfectly' the first time? 'Perfect' means the absence of the keyboard? My understanding of your description is: it booted nicely into Windows desktop the first time and you could move the mouse to do things but you simply could not use a keyboard as it was not plugged in. Other than this keyboard absence, everything else was OK.

Anyway, how about unplugging the keyboard and try to see if you get the display?

And, how about using an USB keyboard (hopefully you have one available) instead of the old fashion PS/2 keyboard?
post #10 of 13
Thread Starter 
Quote:
Originally Posted by windfire;14419035 
What do you mean it did not boot 'perfectly' the first time? 'Perfect' means the absence of the keyboard? My understanding of your description is: it booted nicely into Windows desktop the first time and you could move the mouse to do things but you simply could not use a keyboard as it was not plugged in. Other than this keyboard absence, everything else was OK.

Anyway, how about unplugging the keyboard and try to see if you get the display?

And, how about using an USB keyboard (hopefully you have one available) instead of the old fashion PS/2 keyboard?

I mean it booted into Windows and the mouse worked and everything, I just forgot the keyboard wasn't plugged in. So yer, basically how you understood it. I did try it without the keyboard, no luck
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AMD has Ryzen
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Superlux 681 w/ HM5 pads.  
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