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Solved: Monitor does not receive signal from computer


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20-Aug-2010, 12:11 PM #1
Solved: Monitor does not receive signal from computer
I just moved recently, and upon setting up my computer in my new apartment, my monitor wont work. Everything is receiving power because the power lights are on and it sounds like a normal boot up. However, my screen automatically goes into power save "sleep" mode, and when I press the side control buttom on the monitor, it says that it is not receiving a signal from the computer. I checked the blue VGA cable and made sure it was secure. Nothing seems to work, and Dell wants to charge me $60 for a diagnosis. Please Help!
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20-Aug-2010, 12:34 PM #2
Hi and welcome

Do you hear any beeps when the computer turns on?

It could be possible that the video card got loose during the move. Would you feel comfortable opening the case? I would check for any loose cables, cards inside there.
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20-Aug-2010, 01:28 PM #3
If you are determining that the system is booting up by some lights flashing, Fans running, and Cd/DVD Drawers opening and closing, that is not a true indication of a system booting up. If however you here the POST beep or the normal windows start up Sounds, then the computer is booting. I would try the monitor on a different computer to rule it out as the problem. You could also try a different known good Video Cable to rule that out of the equation.
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21-Aug-2010, 03:17 PM #4
Yes, there are beeps when it turns on. It beeps one short beep and then 2 short beeps in a row. Is that normal? Could you walk me through how to take the back panel off? There is also a green light on the back of my tower. Does that mean anything?
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21-Aug-2010, 10:25 PM #5
To me, those beeps indicate a video error has occurred and the BIOS cannot initialize the video screen to display any information.

Is it a brand name desktop? Every case is a little different. Do you have the model #?
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22-Aug-2010, 12:24 AM #6
Its a Dell Studio 540. The only model info I could find is model DCMA. Does that help or do you need more info? I just bought it last year. I hope with your help, I can just open up the case and tighten some cards and cords.
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22-Aug-2010, 12:36 AM #7
No, the 540 gives enough info...just need to know, is it the slim model?
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22-Aug-2010, 11:19 PM #8
Um no I don't think it is the slim model. Its like 7 inches wide.
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22-Aug-2010, 11:25 PM #9
One other thing to check is to ensure none of the pins were bent on the cable that plugs into your computer.. I have seen it before.
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22-Aug-2010, 11:26 PM #10
Alrighty.

Power off the PC.

Check the back of the tower. Do you see any screws that look to be holding the side panels in place?

Normally there is one on the top and bottom.

Older Dells would have an oval shaped button on the top and bottom of the tower.
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24-Aug-2010, 03:30 PM #11
Yes, there are 2 screws on each side that are holding the side panels on. There are not any oval buttons on the top or bottom.
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24-Aug-2010, 03:38 PM #12
Okay good.

First, remove all power cords that are connected to the computer case.
(This includes network cables, modems, printers, etc…Wait a few seconds as the power leaves the main board.)
Make sure your hands are clean and definitely DRY. Remove any jewelry.
Open your computer case by unscrewing those 2 screws on the left side. Slide the panel off. Keep any screws or spare parts in a safe place.
To protect your computer from static electricity stored on your body, continually touch the unpainted metal part of the case to discharge any static. This will prevent the static sensitive components from being ruined. (memory, video card, motherboard)
Now you are ready to work on the insides of your computer.
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24-Aug-2010, 09:25 PM #13
Okay. I slid thhe right side panel off an am now looking at the inside of my computer. I took all my jewelry off and did everything you said. Now what? Its kind of dusty in here. How do I clean it? I have a can of compressed gas duster. Can I use that?
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24-Aug-2010, 09:36 PM #14
Yes, specifically on any fans and vents.

Make sure that there are no loose screws or other components inside the case.

Check for any loose cables, any that are pinched and twisted.

Depending on how many expansion cards may be inside the computer (such as the video card or network card), we want to make sure they are seated properly and fully in their slots on the motherboard.

If you feel comfortable, you could even remove the card and reseat it into the slot. This goes for the memory modules too.
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24-Aug-2010, 09:50 PM #15
Well I'm not really sure what I'm looking for. Where woulld the video card be located? There are a lot of cords in here. Some of them are connected to the motherboard and some are just hanging which I'm assuming means either they don't need to be plugged in or they came loose. Should I just start making sure everything is plugged in securely?
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