DIGITAL Server 3100/3200 Series Service

This Service Maintenance Manual is a comprehensive guide for troubleshooting, maintaining, and repairing DIGITAL Server 3100/3200 Series systems, published in January 1998. It is primarily intended for A+/DIGITAL Server certified engineers and focuses on subassembly/module level repairs, advising against component-level modifications.

The document covers:

• Product Description: An overview of the server's high-performance, highly-scalable architecture, including reliability features (ECC memory, variable fan speed, cluster support), expansion capabilities (EISA/PCI slots, storage devices, I/O ports, network controllers), server management, and security features (diagnostics, asset management, key lock). It also provides server configuration guidelines and a comparison of Pentium Pro and Pentium II processors.
• Server Software and Utilities: Descriptions of key utilities such as ServerWORKS Quick Launch (for OS installation and creating utility diskettes), the System Configuration Utility (SCU) for hardware configuration, RAID Configuration Utility, BIOS Upgrade Utility, SCSISelect Utility, and diagnostic software for verifying hardware operation.
• SCU Features: Detailed explanations of the various configuration options available within the System Configuration Utility, covering system settings, memory, boot options, integrated peripherals, keyboard features, shadow options, security settings, cache options, advanced control, and EISA/PCI device management.
• Troubleshooting: Extensive information on diagnosing server problems, including initial steps, diagnostic procedures, interpreting server fault status (LEDs, temperature sensing), POST messages and boot codes, and processor voltage/temperature ranges. It provides specific troubleshooting tables for common issues related to disk drives, SBBs, tape drives, monitors, CD-ROMs, diskette drives, and RAID.
• FRU Replacement: Step-by-step procedures for removing and replacing Field Replaceable Units (FRUs) such as the power supply, diskette drives, CD-ROM drives, cooling fans, main logic board, server battery/Real Time Clock (RTC), storage backplane, and the Operator Control Panel (OCP). This section also details memory installation guidelines for both Pentium Pro (SIMMs) and Pentium II (DIMMs) processor modules, as well as main logic board and processor module switch settings.
• Processor Module Upgrades: Instructions for upgrading Pentium Pro and Pentium II processor modules, including BIOS update procedures and configuration guidelines for single and dual-processor setups.
• Device Mapping: Tables outlining processor memory address maps, I/O address maps, server interrupt levels, and PCI configuration space address maps to assist with resource management.

The manual emphasizes static electricity precautions during servicing and the importance of running the SCU after making configuration changes or hardware replacements. It also lists related documentation and software for comprehensive support.