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garbled display

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6 replies

by kydean

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At times I have a red 'grid-like pattern' on the monitor. It happens when they play a game. I can get it also when I run a full test at PcPitStop.com (everytime they get to the video test). But they do not pick up on a problem with the function of the video. I have changed drivers for the card several times including downloads of new drivers. The card is ATI Radeon 7000 64mb. It did not come with the computer.

6 replies

by hal 9000

And the Video card appears to work correctly to the test but is throwing up rubbish on the screen. This is generally a sign of a Video Card being driven too hard.

If you lower the resolutions or the refresh rate it may cure the problem.

Col

by kydean

What causes the inability to read anything on the screen? There is a red grid like-everything is out of focus. I have to reboot everytime to be able to read or see anything. Is that a problem with the video card?

by hal 9000

But depending on what is happening it could be almost anything. If you have a CPU without much L2 Cache that could be causing the problem when some graphic intensive work is required and the CPU is breaking down. Or the RAM on the Video Card could be being overrun and corrupting the GPU which is unable to correct itself without a shut down and reboot.

If this is a High End Game you most likely need something much bigger than a 64 MEG Video Card. For the last year at least the smallest Video card that I've been able to buy has 256 MEG of RAM on it and a very fast GPU the normal ones that I buy for gaming have 512 MEG of RAM and cost under a couple of hundred $.

But if you want to test the Hardware download [b]The Ultimate Boot CD[/b] and run the diagnostics to see what is falling over. It's available for download here but you'll need a CD Burner and know how to turn an ISO file into a Bootable CD

http://tinyurl.com/3jnpy

Col

by kydean

No big games....just simple arcade type and every time the full scan at pcpitstop (the video check part. Occationaly when working in MS Publisher and in Outlook. So I don't call that doing anything major.

by hal 9000

On The Ultimate Boot CD to test your hardware and check to make sure that the Fan on the Video card if there is one fitted is actually running and hasn't jammed up and allowing the GPU to overheat.

Col

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