Cirrus Logic video driver for Windows NT 4.0 - QB8T15A - IBM PC300GL (type 6561, 6591)
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Readme file for QB8T15A.EXE
9.2 KB
- 24 Feb 1999
Cirrus Logic video driver for Windows NT 4.0
513.97 KB
- 24 Feb 1999
This package contains an update to the device driver for Cirrus Logic 546x video adapter that comes preinstalled in your IBM computer. This update requires approximately 1.5MB of space on your hard disk (Drive C).

This update package is intended for IBM PC 300GL machine types 6561-xxx and 6591-xxx that come preinstalled with a Cirrus Logic 546x video adapter.

Print this file so that you can refer to it during the installation.
Additional information

Downloading the update

  1. Click the file link named Qb8t15a.exe to download the file from the Web page.
  2. When prompted, select a drive and directory in which to save the downloaded file.


Installing the update

  1. Click Start, highlight Find, then click Files and folders.
  2. Type Qb8t15a.exe in the search box, then click Find Now. This will locate the Qb8t15a.exe file you just downloaded.
  3. Double-click the icon for Qb8t15a.exe.
  4. When prompted for a drive letter compatible with a 1.44M 3.5" disk, type A then press Enter. A license agreement will appear.
  5. To read the license agreement, press Enter to move from page to page. When you reach the end of the license agreement, you will hear three beeps.
  6. If you agree with the license agreement, press Y then Enter. If you do not agree, press CTRL+C to exit the installation.
  7. Put a blank 1.44M 3.5" floppy disk in drive A then press Enter. The installation disk will be created.
  8. Once the extraction is complete and you are prompted to press Y to do another copy, press Enter to exit the program.
  9. Click Start, highlight Settings, then click Control Panel. This will open the Control Panel main window.
  10. Double-click Display, click Settings, click Display Type, then click Change.
  11. Click Have Disk, then when asked where to copy manufacturer's files from, type A:\ then click OK.
  12. Click on Cirrus Logic 546x 1.71b, then click OK.
  13. When the Third-Party Drivers window appears click Yes. A message stating that the drivers were successfully installed will be displayed.
  14. Close the Display Type and Display Properties windows.
  15. When asked to reboot your machine, remove the floppy disk from the drive, then click Yes.
  16. Log into Windows NT as usual.
  17. When the Invalid Display Settings window appears click OK.
  18. Select the desired Desktop Area, Color Palette and Refresh Frequency.
  19. Click the Test button. When the Testing Mode window appears, click OK. A display pattern will appear to test the selected settings.
  20. If the test bitmap was displayed correctly, click OK. Otherwise, click Cancel then repeat steps 18 and 19.
  21. Click Apply, then click OK to save the settings.

Note: If you experience difficulties with adjusting your display settings, you may need to reapply the Windows NT Service Pack you currently have installed on your machine.

If you are unable to find what you are looking for, please do try the following options:
1. Lenovo Assisted Search
2. Product usage and general troubleshooting tips
3. Lenovo Support Forum
4. Technical Support Call Centre

Document ID : DS001155
Legacy Document ID : JBAR-3QQQVC
Last Updated : 12 Nov 2013
Copyright © Lenovo 2013, all rights reserved
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