DIGITAL PC 5500

This document is a comprehensive system reference guide for the DIGITAL PC 5500 computer, designed to assist users with its operation, configuration, and upgrades. It covers detailed instructions on:

• Initial Setup and External Connections: Describing front/rear panel components, indicators, and connecting various external devices such as speakers, headphones, microphones, MIDI/joystick devices, printers, and USB devices. It also includes guidance on chassis lockdown and creating an ergonomic working environment.
• BIOS Setup Utility: How to access and configure BIOS settings, including changing time/date, setting security passwords, protecting against boot sector viruses, managing power options, configuring disk drives (diskette, hard disk), altering boot sequences, and adjusting keyboard features.
• Internal Components and Expansion: Descriptions and locations of internal components like the main logic board and backplane. It provides instructions for installing additional computer memory (EDO, Fast-Page Parity SIMMs), upgrading video memory (WRAM), replacing the lithium battery, and installing higher-performance processors and various ISA and PCI expansion boards.
• Mass Storage Device Installation: Procedures for adding different mass storage devices (hard disk drives, tape drives, diskette drives) into the computer's drive bays and connecting them using IDE and SCSI interfaces, along with relevant configuration guidelines.
• Technical Specifications: Appendices detail performance, dimensions, environmental conditions, power requirements, main logic board jumper/switch settings (including processor clock speed), device mapping (memory, I/O, interrupt, DMA), and video output information.