Chapter 1
1.1
1.2
1.3
System Architecture.............................................................................. 1-5
2.1
2.2
2.3
2.3.1
Backplane.............................................................................................. 2-8
2.3.2
CPU Module ........................................................................................ 2-10
2.3.3
Memory Module .................................................................................. 2-11
2.3.4
Directory Module................................................................................. 2-12
2.3.5
Power Modules .................................................................................... 2-13
2.3.6
2.3.7
2.3.8
I/O Riser Module ................................................................................. 2-16
2.3.9
Global Port Module ............................................................................. 2-17
2.3.10
Distribution Board........................................................................ 2-18
2.3.11
Hierarchical Switch ...................................................................... 2-20
2.4
Power System...................................................................................... 2-22
2.4.1
AC Input Box....................................................................................... 2-24
2.5
PCI I/O ................................................................................................ 2-26
2.6
Control Panel ...................................................................................... 2-28
2.6.1
Control Panel LEDs ............................................................................ 2-30
Contents
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