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Keep losing video signal

By s-and-3 ·
I installed an XFX GeForce5200 256MB vid card in a Gateway with a 950MHz processor, 250W power supply, and 128MB of memory. Ran fine for about 1 week, then I started getting video blackouts after computer runs for anywhere from 20 min to 1 hr. Computer stays on, but monitor goes into standby. Since then, I've installed extra case fan, 350W power supply, flashed bios, experimented with the AGP aperture, upgraded AGP and vid drivers, and added 128MB more memory. Returning to old video card (Gateway proprietary Nvidia Vanta TNT2 w/16MB) solves problem, but family needs more video memory to run new games. Please help!

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by sgt_shultz In reply to Keep losing video signal

sounds like a bad card unless maybe a bad slot in the pc. is there a fan on the card and is it running. maybe you need to turn off power mgmt on the card or in power mgmt video settings...

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by s-and-3 In reply to

It had a heat sink. Because of this, I had already moved the PCI cards further away. Just in case it was a bad card or still overheating, I exchanged the card for a new one and added (2) extra case fans. No improvement.

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by dmiles In reply to Keep losing video signal

Sounds as though the display settings may have changed or the card has gone bad
The AGP slot may be the problem
Upgrade the Direct X to latest 9x
The system compatibility may be the minimum

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by s-and-3 In reply to

The only setting accessable in BIOS is aperture size, so I doubt it. What would cause the AGP slot to be the problem? The slot supports 4X compatible and the card is 4X/8X compatible. Note in original posting that related drivers have been upgraded.

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by Another Computer Guy In reply to Keep losing video signal

If you can install the old card and the problems dissappear, my guess would be that you have some settings in the registry and some old driver files from your original card causing the problems. You may have to do a lot of investigating to discover what needs to be changed or deleted. It's a pain, but my first suggestion would be to backup your data, do a clean install of your OS and install the newest DirectX and Graphics card drivers. This will eliminate any old drivers and settings in your registry that could be causing your problems. If this doesn't solve it, then I would suggest a problem with the new video card. Also make sure APM is disabled in your BIOS. Use Windows ACPI.

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by s-and-3 In reply to

Thanks for your input. I tried this but it didn't work, darn it.

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by G.Brown In reply to Keep losing video signal

Is the card plugged into a TV using the TV-OUT?

If it is .. just try testing with only the monitor plugged in.

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by s-and-3 In reply to
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by TheChas In reply to Keep losing video signal

I suspect that you have a card that is not compatible with the AGP slot on your motherboard.

The Vanta TNT2 is an older AGP design and will work in nearly any old AGP slot.

What I believe happened, is that your motherboard supplies the wrong power voltage for the new card. The card worked for a while until a critical part was damaged by the excess voltage.

What you need is a compatible design AGP card.

Look for a GeForce 2 MX200 series card.

You will need to search the used and refurbished market.

Ebay,
www.geeks.com
www.pcliquidators.com

Chas

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by s-and-3 In reply to

Since yours came closest to the solution I used, I guess you get the points. It is possible that there is a problem in the AGP slot or else the XFX GeForce 5200 is simply poor technology (and their customer service never returned my calls, either!). However, it wasn't necessary to go with an older card. I went with an ATI Radeon 9200 w/128MB, which is 2x, 4x, 8x compatible, instead. It is working fine and so are the new games I wanted to run.

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