Service manual

iii
Contents
Preface............................................................................................................... xi
Chapter 1 System Overview
1.1 AlphaServer 4100 System Drawer (BA30A).............................................1-2
1.2 AlphaServer 4000 System Drawer (BA30C).............................................1-4
1.3 AlphaServer 4100 System Drawer (BA30B).............................................1-6
1.4 Cabinet System ........................................................................................1-8
1.5 Pedestal System......................................................................................1-10
1.6 Control Panel and Drives .......................................................................1-12
1.7 System Consoles.....................................................................................1-14
1.8 System Architecture...............................................................................1-16
1.9 System Motherboard ..............................................................................1-18
1.10 CPU Types.............................................................................................1-20
1.11 Memory Modules...................................................................................1-22
1.12 Memory Addressing...............................................................................1-24
1.13 System Bus.............................................................................................1-26
1.14 System Bus to PCI Bus Bridge Module...................................................1-28
1.15 PCI I/O Subsystem.................................................................................1-30
1.16 Server Control Module...........................................................................1-32
1.17 Power Control Module ...........................................................................1-34
1.18 Power Supply.........................................................................................1-36
Chapter 2 Power-Up
2.1 Control Panel ...........................................................................................2-2
2.2 Power-Up Sequence..................................................................................2-4
2.3 SROM Power-Up Test Flow.....................................................................2-8
2.4 SROM Errors Reported..........................................................................2-11
2.5 XSROM Power-Up Test Flow................................................................2-12
2.6 XSROM Errors Reported .......................................................................2-15
2.7 Console Power-Up Tests.........................................................................2-16