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dkostic
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Joined: 24 May 2006
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Location: Madison, NJ

PostPosted: Wed Oct 04, 2006 2:44 am    Post subject: VGA connector missing pins? Reply with quote

Hey everybody - The city I live in had a big power outage today. I came back home shortly after it hit and found that my computer monitor wasn't displaying anything (just the self-test screen, which assures me "This monitor is working. Please check the video cable and computer.") even though it sounded like the box had rebooted itself. I usually get this screen after that computer has been idle for an hour or two. Moving the mouse and typing on the keyboard did nothing to display anything on the monitor. So I restarted, and it sounded as though my computer was starting normally, I still only got the self-test screen on my monitor. I turned everything off, unplugged everything and reconnected it (just in case something was loose), and still the same.

My monitor, my box, and everything leading to it are all behind one big surge protector, so it doesn't seem like this is the result of a power surge (and anyway, all the other things attached to that surge protector work and my box sounds like it starts up normally).

I tried plugging my roommate's monitor into my computer, and got nothing on that either (which suggests to me there's a problem in the box) :( . So at this point I'm kind of freaking out. I did notice, however, that the VGA connector to my monitor seems to be missing some pins. If you look at...

Code:
http://en.wikipedia.org/wiki/VGA_connector#Connector


my connector is missing pins number 4, 9, and 11 (I think; my VGA connector looks like that one except the pins go in reverse order). It looks like they've been pulled out, because there are holes in the connector there. I'm not sure if this is something unusual; I've never really examined the connector.

Does anybody have any idea what the fsck is going on here?
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kabage
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PostPosted: Wed Oct 04, 2006 3:26 am    Post subject: From your link Reply with quote

That sounds alright since pin 4, 9, 11 are N/C or not connected anyway.
We are talking your moniter cable yes.

Since your roomate's monitor isn't kicking in either, it is probably a good bet
it is the computer end.

So what does that leave,
Motherboard, or vga connetor on the MB / video card vga connector on video card
BIOS - Maybe got tweaked from using onboard vs agp or something like that

Simplest thing is probably check the bios first.
If no joy try a cheap/borrow a video card (a known good) and see if you can get anything

Try your monitor on your roomates computer see if it reacts.

Try a visual on the inside of the computer vga port see if there is any thing obvious, burn mark, distinct ozone smell
piece of paper or moth laying on the port.
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Headrush
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Joined: 06 Nov 2003
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PostPosted: Wed Oct 04, 2006 3:29 am    Post subject: Reply with quote

Check the the BIOS didn't change to using PCI video card instead of AGP or vice-versa.
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dkostic
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PostPosted: Wed Oct 04, 2006 7:16 pm    Post subject: Reply with quote

OK, update: I plugged my monitor into my roommate's computer and it works, so my monitor's OK, and so the problem's definitely in my box. (And I also managed to mount my hard drive on a friend's computer, and my files are still there! :D ).

Kabage: I opened the box up and nothing looks suspicious or unusual; no burn marks, no dead moth, no weird odor. Since I know the monitor's not the problem, you're right that I should definitely check the video card next (it's an AGP card). Is there any smarter way to do this except find somebody with a compatible working card and plug theirs into mine? (I can do this, I just don't want to hassle my friends unless I have to. :wink: )

Headrush: How can I check the if the BIOS changed anything? (I can't see anything on the monitor, after all.)

Do you guys think it's possible that the CPU has burned out?
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Headrush
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PostPosted: Wed Oct 04, 2006 7:26 pm    Post subject: Reply with quote

dkostic wrote:
Headrush: How can I check the if the BIOS changed anything? (I can't see anything on the monitor, after all.)

Didn't you say you have your roommates monitor right there?

dkostic wrote:
Do you guys think it's possible that the CPU has burned out?

Doubt it. You said in the first post that you could hear it booting. True or no? :)
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dkostic
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PostPosted: Wed Oct 04, 2006 7:47 pm    Post subject: Reply with quote

Headrush wrote:
dkostic wrote:
Headrush: How can I check the if the BIOS changed anything? (I can't see anything on the monitor, after all.)

Didn't you say you have your roommates monitor right there?


Yeah, but I also said I got nothing on it either :cry: . If my rommie's monitor worked on my computer, I'd know it was a problem with my monitor.

dkostic wrote:
Do you guys think it's possible that the CPU has burned out?

Doubt it. You said in the first post that you could hear it booting. True or no? :)[/quote]

Yeah, I can hear it booting. (Uh oh, time for a t0ta1 n3wb question :P. ) Is it possible that the motherboard can make the usual start-up noises without a functioning CPU plugged in? If the CPU were functional, then presumably the BIOS would start and I'd see something on the screen.
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Headrush
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PostPosted: Wed Oct 04, 2006 7:51 pm    Post subject: Reply with quote

dkostic wrote:
Yeah, but I also said I got nothing on it either :cry: . If my rommie's monitor worked on my computer, I'd know it was a problem with my monitor.

Sorry missed that.

dkostic wrote:
Yeah, I can hear it booting. (Uh oh, time for a t0ta1 n3wb question :P. ) Is it possible that the motherboard can make the usual start-up noises without a functioning CPU plugged in?

No

Reset the BIOS, either by looking in your motherboard manual for a pin to short to reset the BIOS or remove the little watch battery on the motherboard.
That should reset the settings.

FYI: Just because the BIOS is read doesn't mean you would get something onscreen.
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