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USB=grahics driver turndown

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11 replies

by kbjkopf

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I have to turn down my graphics card driver/acceleration.to run 1 program and then back up to run another.These programs use a bike linked to a USB on a openGL suface.When the hardware accl.(under advced setting in desplay)is on high the program looses conection with the USB.Why? I was told you could help.Thanks KK

11 replies

by thechas

Normally when you need to adjust graphics acceleration to get software to run, you have a resource problem.

Either the:

GPU (graphics processor) is not fast enough.
Not enough video RAM

Not enough system RAM

Too much system RAM.

We need to know which version of Windows, and details of your system hardware to provide a more specific answer.

For good Open GL, you need a decent 3D graphics accelerator with a minimum of 8MB of video RAM.

For Windows 95, 98, or Me, you want between 128MB and 384 MB of system RAM.
More than 511MB can cause a number of problems with Windows.

For Windows 2000 or XP, you want a MINIMUM of 128MB of RAM. 256MB would be better.

Do you have the latest video driver installed?
Is the version of DirectX that you have compatible with the video driver?

Many older video cards (3dfx, S3, Diamond) do not work well with XP as the drivers are very generic and limited.

If you can provide more information, reject this answer, and add a comment with the additional information.

Chas

by thechas

1. Which version of the Nvidia driver are you using?

The one from Windows Update, or the latest version from Nvidia's web site?

I recommend the driver from Nvidia.

2. Are all compatibility updates installed?

3. Which version of Windows was the program written for?
A number of programs must be either updated, or run in compatibility mode under XP.

Chas

by kbjkopf

Latest Nvid.drivers installed.All updates for windows,installed.The bios in this Hp is a joke.Not much room for tweeking here.

by kbjkopf

Windows error mes.I thunk.when changing to compatability mode.Note the programs will run,They just wont stay running in full accelaration.

by thechas

Have you checked with HP for a BIOS update?

Often there are problems with the BIOS and Nvidia graphics cards that are corrected by a new BIOS revision.

Also, while your at it, do you have any options in BIOS setup for AGP Aperture?
If so, you want the aperture size between 128MB and 256MB with a 128MB video card.

Come to think of it, if there is no AGP Aperture setting, the amount of reserved memory addresses for video may be smaller than the amount of RAM on your card.
If there is not a BIOS update, you may need to use a video card that has less RAM on it.

Chas

by jaboy78

tht could be the power supply, the watt not high enough to run this two thing simultaneously..

Try to get a higher watt power supply..

Not the cheap one..get a bit more expensive one and should be bulky one and try it out.

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