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Chapter 8 FRU Removal and Replacement
8.1 FRUs .....................................................................................................8-2
8.1.1 Power Cords....................................................................................8-5
8.1.2 FRU Locations................................................................................8-6
8.1.3 Important Information Before Replacing FRUs.............................8-8
8.2 Removing Enclosure Panels on a Tower or Pedestal..........................8-10
8.3 Accessing the System Chassis in a Cabinet........................................8-14
8.4 Removing Covers from the System Chassis........................................8-16
8.5 Power Supply ......................................................................................8-20
8.6 Fans.....................................................................................................8-22
8.7 Hard Disk Drives................................................................................8-24
8.8 CPUs ...................................................................................................8-26
8.9 Memory DIMMs.................................................................................. 8-28
8.10 PCI Cards............................................................................................8-32
8.11 OCP Assembly.....................................................................................8-34
8.12 Removable Media................................................................................8-36
8.13 Floppy Drive........................................................................................8-38
8.14 I/O Connector Assembly......................................................................8-40
8.15 PCI Backplane ....................................................................................8-42
8.16 System Motherboard...........................................................................8-46
8.17 Power Harness....................................................................................8-50
Appendix A SRM Console Commands
Appendix B Jumpers and Switches
B.1 RMC and SPC Jumpers on System Motherboard.................................B-2
B.2 TIG/SROM Jumpers on System Motherboard......................................B-4
B.3 Clock Generator Switch Settings..........................................................B-6
B.4 Jumpers on PCI Board..........................................................................B-8
B.5 Setting Jumpers..................................................................................B-10
Appendix C DPR Address Layout
C.1 DPR Address Layout.............................................................................C-2
Appendix D Registers
D.1 Ibox Status Register (I_STAT)............................................................. D-2
D.2 Memory Management Status Register (MM_STAT) ........................... D-4
D.3 Dcache Status Register (DC_STAT)..................................................... D-6
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