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Vertical lines on screen

by 9C0UR4M / January 25, 2011 11:41 PM PST

Hi everyone. Im new to CNET and in serious need of assistance.

Monitor: Samsung SyncMaster 920N
Computer: HP Pavilion
OS: Windows XP Media Center 2005

Im having problems with my monitor. I was on the Sky Sports website watching a video when it happened. The monitor suddenly got the lines on it, then started turning on and off (everything on screen had frozen except the mouse which I was moving around when the screen would blink on). I restarted the computer manually because I couldnt restart it properly. When it got to the starting screen, there were still lines down it, that distorted the screen, (but not the menu that controlled brightness and that sort of thing) and after this screen usually comes a black screen which says the computer is going to "start windows normally" which usually disappers after, literally, 2 seconds. This screen however was now severly distorted. I could barely make out the start windows normally part. After pressing enter, the computer moved to the Windows XP loading screen, but it wouldnt get any further than this and it would freeze which meant I would have to restart it manually (and now it doesnt even get there, it restarts by itself straight after pressing ennter at the start windows normally screen). My cousin whos pretty good with computers says its a video card issue but Im unsure on what to do. I bought a new VGA cord but the screen was still messed up. I tried hooking my computer up to the TV but it still looked the same. When I disconnect the monitor from the computer, there are no lines and no distortions; everythings normal. I dont think its the fans/the computer over heating because the computer doesnt get hot and fans do work. Im baffled.

Could realllly use some help lol...

PS I also have pictures if it helps...

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Fairly Straight Forward..
by Grif Thomas Forum moderator / January 25, 2011 11:53 PM PST

Of course, it's possible the problem is video driver related and you could check for, and install the latest video driver for your card but that's a long shot. Still, I'd give it a try.

The next step is to borrow and swap in a known, good monitor and if it works correctly, then you need to replace your current monitor.. If the known, good monitor also shows the problem, then you need to replace the video card on the computer.

You can also test your current monitor by plugging it in to a different computer. If it works fine on the second computer, and a known, good monitor doesn't work correctly on the problem machine, then it's certainly a video card issue.

Hope this helps.


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Thanks Grif!
by 9C0UR4M / January 27, 2011 8:36 PM PST

I think I better go and get a new video card. Im having trouble finding one. Im not really sure what/where to buy. My video card is NVIDIA Geforce 7500 LE with TurboCache, where would I find this (tried ebay and found nothing)? Do I have to get this exact one to replace the ruined one?

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by Jimmy Greystone / January 27, 2011 9:19 PM PST
In reply to: Thanks Grif!

No, there are really only about two things you need to concern yourself with when getting a new video card.

#1: Connection type: PCI, AGP, PCI-E
#3: Power supply demands

Make sure you know which one you have for #1 and get something the same, and then find out how many watts your power supply can put out, and make sure any video card you get says it needs a power supply of that capacity or lower. Otherwise you'll find your system rebooting a lot because you tripped a circuit breaker in the power supply.

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Thanks Jimmy!
by 9C0UR4M / January 28, 2011 3:04 AM PST
In reply to: No

How do I find out whether its PCI, AGP or PCI-E and how many watts my power puts out (sorry, Im a reeeaaal novice...)? Does memory matter?

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