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No Video

By ftuckerjr ·
I have a good video card but when I turn on my computer I get no video. What could be the problem?

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No Video

by Alpha-Male In reply to No Video

If you have tested the video card in another machine and verified it is good, then there are several possibilities (assuming you mean you don't get ANY video, not you don't get video in Windows, etc).

First make sure of all the obvious things...cables plugged in, brightness turned up on the monitor, etc.

Try a different monitor and cable.

Make sure there is not an onboard video card or another video card interfering

Make sure the card is well seated in the slot and the connectors are not dirty/corroded.

Try it in another slot

Make sure it's a video problem (ie. that the machine is booting, you just can't see it).
I say this because you say you get no video...but don't mention if it's a black screen, a no signal screen etc nor if you get any error beeps. I've seen this with a machine where the motherboard was grounded for example. Also, make sure that none of your other devices have problems (reversed cables and the like). When in doubt, I strip it down to basics...just the motherboard, cpu, ram and video. If you POST and get video, start connecting up floppies, drives etc.

If you have a known good video card and monitor and cable and can't get video at this point, let me know and I'll try to help further.

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by ftuckerjr In reply to No Video

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by maxwell edison In reply to No Video

Look at this Web site, "The Troubleshooting Flowchart".

http://a1computers.net/BV1.HTM

It's a troubleshooter in question and answer (Yes or No) format that will take you to the next consideration step based on your answers.

The previous link was to the video problem page, the following link is to the main page:

http://a1computers.net/START.HTM

(REMOVE SPACES from the pasted URLs.)

It's really kind of slick.

Maxwell

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No Video

by ftuckerjr In reply to No Video

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by TheChas In reply to No Video

The number 1 cause of no video when all parts are good, is the the video card is not fully seated in the slot.

For an AGP card, it only needs to be 0.050" out of the slot to cause a problem.

For most cards, the circuit board should rest on theends of the AGP socket.

If in doubt, remove the bracket from the card, and re-seat it into the slot.

I have also had cards that will not work in some motherboards.
1 in particular, did not have all of the fingers on the edge connector, and would not work in several motherboards.

I have a motherboard, where the plating on the AGP socket failed, and no AGP video card will function in that board.
It works fine if I use a PCI card.

Chas

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by ftuckerjr In reply to No Video

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by smimail In reply to No Video

if you have a PCI video card for the PC and it works, check the BIOS and make sure it boots to AGP first. I had an AGP card not work on an odd Motherboard until I changed its video default from PCI to AGP.

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by ftuckerjr In reply to No Video

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by ftuckerjr In reply to No Video

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