Service manual

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5.4.1 System Bus ECC Error....................................................................5-39
5.4.2 System Bus Nonexistent Address Error............................................5-40
5.4.3 System Bus Address Parity Error.....................................................5-41
5.4.4 PIO Buffer Overflow Error (PIO_OVFL).........................................5-42
5.4.5 Page Table Entry Invalid Error ........................................................5-43
5.4.6 PCI Master Abort ............................................................................5-43
5.4.7 PCI System Error ............................................................................5-43
5.4.8 PCI Parity Error ..............................................................................5-43
5.4.9 Broken Memory ..............................................................................5-44
5.4.10 Command Codes .............................................................................5-46
5.4.11 Node IDs.........................................................................................5-47
5.5 Double Error Halts and Machine Checks While in PAL Mode................5-48
5.5.1 PALcode Overview..........................................................................5-48
5.5.2 Double Error Halt............................................................................5-49
5.5.3 Machine Checks While in PAL .......................................................5-49
Chapter 6 Error Registers
6.1 External Interface Status Register - EL_STAT .........................................6-2
6.1.1 External Interface Address Register - EI_ADDR ...............................6-6
6.1.2 MC Error Information Register 0 ......................................................6-8
6.1.3 MC Error Information Register 1 ......................................................6-9
6.1.4 CAP Error Register .........................................................................6-11
6.1.5 PCI Error Status Register 1 .............................................................6-14
Chapter 7 Removal and Replacement
7.1 System Safety...........................................................................................7-1
7.2 FRU List..................................................................................................7-2
7.3 4100 Power System FRUs.........................................................................7-8
7.4 4000 Power System FRUs.......................................................................7-10
7.5 System Drawer Exposure (Cabinet)........................................................7-12
7.5.1 Cabinet Drawer Exposure (H9A10-EB & -EC).................................7-12
7.5.1 Cabinet Drawer Exposure (H9A10-EL & -EM) ................................7-14
7.6 System Drawer Exposure (Pedestal).......................................................7-16
7.7 CPU Removal and Replacement.............................................................7-18
7.8 CPU Fan Removal and Replacement ......................................................7-20
7.9 Memory Removal and Replacement.......................................................7-22
7.10 Power Control Module Removal and Replacement .................................7-24
7.11 System Bus to PCI Bus Bridge (B3040-AA) Removal and Replacement.7-26
7.12 System Bus to PCI Bus Bridge (B3040-AB) Removal and Replacement.7-28
7.13 System Motherboard (4100 & early 4000) Removal and Replacement....7-30
7.14 System Motherboard (Later 4000) Removal and Replacement................7-32
7.15 PCI/EISA Motherboard (B3050) Removal and Replacement ..................7-34