Microsoft KB Archive/122387

= ATI Video Fails with Adaptec 2940 SCSI Adapter on PCI Bus =

Article ID: 122387

Article Last Modified on 10/31/2006

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APPLIES TO


 * Microsoft Windows NT Workstation 3.5
 * Microsoft Windows NT Workstation 3.51
 * Microsoft Windows NT Server 3.5
 * Microsoft Windows NT Server 3.51

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This article was previously published under Q122387



3.50 3.51

WINDOWS

kb3rdparty kbhw



SYMPTOMS
If a Windows NT computer has an ATI video adapter and an Adaptec 2940 SCSI controller on a PCI bus, you may experience the following behavior depending on which ATI video driver is installed:

  Video Driver     Behavior -  ATI Mach 64 GX   When you select the Display icon in Control Panel, the following error message appears:

WARNING: The Application got invalid data from the display driver. You used the down level graphic adapter driver. Contact the manufacturer for the current one.

  ATI Graphics     The system intermittently stops responding (hangs) or   Pro Turbo        displays garbled output at the logon screen.

ATI Mach64 PCI  The system hangs when you attempt to copy several large files (totaling several megabytes).



RESOLUTION
To correct these problems, do one of the following:


 * Switch PCI expansion slot locations for the ATI video adapter and the Adaptec 2940 SCSI controller.
 * Contact Adaptec technical support at (800) 959-7274 for the latest ROM BIOS for the Adaptec 2940 SCSI controller (dated April 1994 or later).
 * Contact ATI Technical Support at (905) 882-2626 to verify that you have the latest ATI chip set number on the video card. ATI has reported that there are problems with video cards within a certain range of chip set numbers.

The products discussed here are manufactured by vendors independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.

Additional query words: prodnt aha 3rdparty

Keywords: KB122387

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