DECpc AXP 150 COMPAQ QVision 1024/E Controller User Information

This manual provides instructions for installing, configuring, and using the COMPAQ QVision 1024/E controller in a DECpc AXP 150 system. It is intended for both experienced and inexperienced users.

The document is structured into three chapters and an appendix:

• Installation: Chapter 1 details how to install the QVision 1024/E controller, which is an EISA-based video controller for connecting an SVGA monitor. It covers setting the primary/secondary switch (SW1) on the board, especially when installing multiple controllers, and connecting the monitor to the SVGA port.
• Configuration: Chapter 2 explains how to configure the system after installation using the EISA Configuration Utility (ECU). It outlines various configuration settings, including video modes status (color/monochrome text, graphics), advanced video features (Extended ROM, High Address Video Buffer), video interrupt settings, and video controller order, along with their default settings.
• Troubleshooting: Chapter 3 offers guidance on identifying and solving common problems. It addresses issues such as the controller not appearing in power-up self-test or no display (possible causes: loose seating, incorrect configuration, conflicts with other boards, faulty monitor/cables, incorrect brightness/contrast, or faulty controller/system board). Recommended actions include reseating the controller, reconfiguring with ECU, checking cables, and verifying monitor settings.
• Specifications: Appendix A provides technical specifications for the QVision 1024/E controller, including host interface (32-bit RAM, 16-bit ROM), RAM (1 Megabyte), board address ranges, hardware interrupt (IRQ9), power requirements (9 Watts), and detailed SVGA connector pin specifications.