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1997-04-12
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OSMKINET - DESKTOP VIDEO CORRUPTION ON IBM PC 750 PENTIUM-90 SYSTEM
04/04/96
=======================================================================
Desktop Video Corruption on IBM PC 750 Pentium-90 System
=======================================================================
Please Read Entire Document for Full Explanation of Procedure
-------------------------------------------------------------
DESCRIPTION
The S3 864 chip set on an IBM PC 750 Pentium-90 system was disabled and
replaced with a Hercules D902 video adapter that has the Tseng
ET4000/W32P chip. The following procedure was followed:
1. Set the system to VGA using Selective Install.
2. Installed the Hercules adapter.
3. Downloaded the latest drivers for the Tseng W32P from the BBS to a
diskette.
4. Opened an OS/2 Window session and changed to drive A.
5. Typed A:SETUP A: C: (C is the drive where OS/2 is installed).
6. Restarted the system.
7. Opened the OS/2 System folder.
8. Opened System Setup.
9. Selected Device Driver Install.
10. Selected Primary Video Adapter and then Tseng W32P.
The system recognized the adapter, but the video was corrupted when the
latest video drivers were installed. The display went black, and the
system tried to create a PMI file. When the video returned, half the
screen was solid black; the other half resembled a badly corrupted
Desktop that was flickering.
RESOLUTION
When the condition above is reached, continue with the following steps.
1. With the Tseng driver diskette in the diskette drive, press Enter.
This will continue the installation. You will see the diskette-drive
light come on as the diskette is read. (This actually is the next
step in the driver-installation process, but you couldn't tell
because of the the corrupted video.)
Note: If the computer beeps, it is asking if an older file
should be replaced with a newer one. Press Enter. You
might have to do this more than once.
2. When the diskette is no longer being read, the installation is
complete. Shut down and then restart the system. The display will
still be distorted.
3. Restart the system from a DOS diskette.
4. Change to the OS2 directory; then type SVGA ON DOS and press Enter.
This will create the SVGADATA.DOS file.
5. Rename SVGADATA.PMI in the OS2 directory to SVGADATA.OLD.
6. Rename SVGADATA.DOS to SVGADATA.PMI.
7. Restart the system. The Desktop appears.
8. Open the OS/2 System folder.
9. Open System Setup.
10. Select System.
11. Go to page 2 and select the correct monitor and rate.
Note: If drive C is formatted HPFS, copy SVGA.EXE to the DOS
startup diskette; then type SVGA ON DOS and press Enter
and create the PMI file this way.
______________________________________________________________________
IBM disclaims all warranties, whether express or implied, including
without limitation, warranties of fitness and merchantability with
respect to the information in this document. By furnishing this
document, IBM grants no licenses to any related patents or copyrights.
Copyright (c) 1994, 1996 IBM Corporation. Any trademarks and product
or brand names referenced in this document are the property of their
respective owners. Consult your product manuals for complete trademark
information.