AlphaServer DS20E AlphaStation DS20E Reference Guide

This document is a comprehensive reference guide for managing, operating, and servicing the Compaq AlphaServer DS20E and AlphaStation DS20E systems. It begins with an overview of the system's architecture, features, and components, including processor modules, memory, PCI backplane, hard disk drive storage, power supplies, and control panels.

The guide provides detailed instructions for installing both pedestal and rackmount configurations of the server. It explains how to boot and install various operating systems such as Tru64 UNIX, OpenVMS, and Linux, and how to reconfigure the system using the AlphaBIOS setup menus (covering memory, network, and SCSI options). Instructions for installing and removing hardware components like processor modules, memory DIMMs, option modules, and storage devices are provided, along with details on storage subsystem features like hot-swap drives and SCSI configuration.

The document also offers extensive troubleshooting information for various issues, including power, boot, and PCI bus problems, and describes remote system management using the Remote Management Console (RMC) and direct interaction via the SRM Console, including commands and environment variables. Appendices provide regulatory compliance notices and detailed system specifications (physical, environmental, and electrical).