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PC will not post w/ monitor plugged in

post #1 of 22
Thread Starter 
Apologies in advance is this is not the correct forum.

As the title suggests, my PC will not boot if the monitor is plugged in. It sounds odd, I know. Usually these issues are the other way around. I have:
  • Dumped my OC so I'm back at stock now, on the CPU and video card
  • Tried plugging the Tower and Monitor in different surge protectors
  • Connected my monitor to the other DVI out (same results with each port)
  • Used a different monitor (the problem goes away using a different monitor)

When I attempt to boot w/ monitor plugged in:
  • The pump, fans, and all lights turn on. No flickering or anything of that nature
  • The HDD light stays lit, it doesn't flicker about like its reading any data. Then eventually turns off and sits there.
  • Monitor, keyboard, and mouse all sit in the off position (mouse/board USB) and no lights come on what-so-ever.
  • Same results if its a cold boot, or warm
  • PC functions normally as long as I don't have to reboot, or shut down (and then start up again)

Any ideas? This has me horribly stumped.
Edited by kneeki - 5/20/08 at 8:46am
post #2 of 22
by "dumped your oc", you mean you cleared the CMOS by taking out the motherboard battery, correct? If this is the case, then find the jumper that clears it and do that...worked for me one time. If this doesn't work, your motherboard is probably ****ed.
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post #3 of 22
Thread Starter 
Quote:
Originally Posted by mcogan10 View Post
by "dumped your oc", you mean you cleared the CMOS by taking out the motherboard battery, correct? If this is the case, then find the jumper that clears it and do that...worked for me one time. If this doesn't work, your motherboard is probably ****ed.
I didn't clear the CMOS, just reverted my OC back to stock. When I get home today I'm going to see if I have the same results with clearing the CMOS. I'm also going to check what happens when I unplug the monitor from the connection to the Montior -> Cable, instead of Tower -> Cable.

You say it worked for you one time, have you had these issues before?
post #4 of 22
Was this monitor working with this 8800GT before? What kind of input is ur monitor using? DVI-I/DVI-D/D-sub? And what kind of output is your 8800GT is using? And the backup monitor that is giving display, what kind of monitor is that?
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post #5 of 22
weird. same kinda thing happened when i had my Sony LCD TV plugged in.... I had to unplug it to boot up, and then plug it in after windows had loaded and then it worked.

Do you have the latest Nvidia drivers? Maybe you need to install the display driver too?
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post #6 of 22
any chance it could be a power issue?? does it happen when your cpu is at full load and you have successfully booted into windows already
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post #7 of 22
Thread Starter 
Quote:
Originally Posted by sweet_3025 View Post
Was this monitor working with this 8800GT before? What kind of input is ur monitor using? DVI-I/DVI-D/D-sub? And what kind of output is your 8800GT is using? And the backup monitor that is giving display, what kind of monitor is that?
It's just an old CRT 1280x1024 monitor I have, nothing special. The Proview is currently connected using a DVI-VGA converter, which I've already tried switching the little converter guy, to the same result.

Quote:
Originally Posted by Microsis View Post
weird. same kinda thing happened when i had my Sony LCD TV plugged in.... I had to unplug it to boot up, and then plug it in after windows had loaded and then it worked.

Do you have the latest Nvidia drivers? Maybe you need to install the display driver too?
Yes, I have the latest drivers, but they are irrelevant. I have no issues while the PC is running, it's getting it to boot up. Regardless of the OS I have installed, the PC will not post.

Quote:
Originally Posted by JerseyDubbin View Post
any chance it could be a power issue?? does it happen when your cpu is at full load and you have successfully booted into windows already
Answered above, the OS/CPU is not an issue, the thing isn't even posting. Once it's up and running, it goes w/o a hitch.
post #8 of 22
have you tried a different video card?

Also, clear the CMOS if you havent already. Make sure to use the jumper and not the bios itself.

If neither of the two work, then you can most likely assume its most likely the motherboard or psu thats shot.
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post #9 of 22
kneeki: I would consider the video card suspect at this point. Try to find some kind of b/u card and try booting. Doesn't need to be anything fancy, just make sure its not a pci card so you can diagnose the pci-e slot at the same time.
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post #10 of 22
Quote:
Originally Posted by kneeki View Post
It's just an old CRT 1280x1024 monitor I have, nothing special. The Proview is currently connected using a DVI-VGA converter, which I've already tried switching the little converter guy, to the same result.
I suspect maybe both the outputs of your 8800GT is DVI-D. Then a DVI-VGA converter will not work on this port. Try any other vga on this pc or connect your proview to another pc which has a 15 pin VGA output.

Good luck
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