Contents iii
Contents
Preface xv
1. Product Description 1-1
1.1 System Unit 1-1
1.1.1 Main Logic Board 1-4
1.1.2 Memory Modules 1-5
1.1.2.1 Video SIMM 1-5
1.1.2.2 SBus Cards 1-5
1.1.3 Nonvolatile RAM (NVRAM) 1-6
1.1.4 Internal Hard Disk Drive 1-7
1.1.5 Internal Diskette Drive 1-7
1.1.6 Power Supply 1-7
1.2 Monitors, Keyboard, and Mouse 1-7
1.3 External Storage Devices 1-8
1.4 System Interconnections 1-8
2. Troubleshooting Overview 2-1
2.1 Default Boot Mode 2-1
2.2 Boot PROM Diagnostics 2-1
2.3 Low-Level POST Code 2-4
2.4 Diagnostic Tools and When to Use Them 2-7