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Contents
Preface
…………………………………………………………….………………x
Chapter 1
Overview
1.1
1200 System ............................................................................................ 1-2
1.2
Control Panel and Drives ......................................................................... 1-4
1.3
System Consoles...................................................................................... 1-6
1.4
System Architecture................................................................................. 1-8
1.5
CPU Types ............................................................................................ 1-10
1.6
Memory ................................................................................................. 1-12
1.7
Memory Addressing............................................................................... 1-14
1.8
System Motherboard .............................................................................. 1-16
1.8.1
System Bus (Backplane) ................................................................. 1-18
1.8.2
System Bus to PCI Bus Bridge ........................................................ 1-20
1.8.3
PCI I/O Subsystem.......................................................................... 1-22
1.8.4
Remote Control Logic..................................................................... 1-24
1.8.5
Power Control Logic ....................................................................... 1-26
1.9
Power Circuit and Cover Interlock ......................................................... 1-28
1.10
Power Supply......................................................................................... 1-30
1.11
Power Up/Down Sequence..................................................................... 1-32
1.12
Maintenance Bus (I
2
C Bus) .................................................................... 1-34
1.13
StorageWorks ........................................................................................ 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
2.8
Console Device Determination .............................................................. 2-18
2.9
Console Power-Up Display .................................................................... 2-20
2.10
Fail-Safe Loader .................................................................................... 2-24
Chapter 3
Troubleshooting
3.1
Troubleshooting with LEDs ..................................................................... 3-2
