Removing an I/O-module interposer . . . . . . . . . . . . . . . . 62
Installing an I/O-module interposer. . . . . . . . . . . . . . . . . 63
Removing an I/O module . . . . . . . . . . . . . . . . . . . . 64
Installing an I/O module
. . . . . . . . . . . . . . . . . . . . 65
Removing a high-speed I/O-module interposer tray
Installing a high-speed I/O-module interposer tray . . . . . . . . . . . 67
Removing a high-speed I/O-module interposer card . . . . . . . . . . 68
Installing a high-speed I/O-module interposer card . . . . . . . . . . . 69
Removing a high-speed I/O module . . . . . . . . . . . . . . . . 71
Installing a high-speed I/O module. . . . . . . . . . . . . . . . . 72
Removing a management-module interposer . . . . . . . . . . . . . 73
Installing a management-module interposer . . . . . . . . . . . . . 74
Removing a management module . . . . . . . . . . . . . . . . . 75
Installing a management module . . . . . . . . . . . . . . . . . 76
Removing a network clock-module filler . . . . . . . . . . . . . . . 77
Installing a network clock-module filler . . . . . . . . . . . . . . . 78
Removing a multiplexer expansion module. . . . . . . . . . . . . . 79
Installing a multiplexer expansion module . . . . . . . . . . . . . . 80
Removing an alarm panel module . . . . . . . . . . . . . . . . . 81
Installing an alarm panel module . . . . . . . . . . . . . . . . . 82
Removing a fan module
. . . . . . . . . . . . . . . . . . . . 83
Installing a fan module . . . . . . . . . . . . . . . . . . . . . 85
Removing a dc terminal cover . . . . . . . . . . . . . . . . . . 86
Installing a dc terminal cover . . . . . . . . . . . . . . . . . . . 88
Removing the fan shuttle . . . . . . . . . . . . . . . . . . . . 89
Installing the fan shuttle
. . . . . . . . . . . . . . . . . . . . 90
Removing and replacing FRUs . . . . . . . . . . . . . . . . . . . 92
Removing a power box . . . . . . . . . . . . . . . . . . . . . 92
Installing a power box . . . . . . . . . . . . . . . . . . . . . 94
Removing the midplane. . . . . . . . . . . . . . . . . . . . . 96
Installing the midplane . . . . . . . . . . . . . . . . . . . . . 98
. . . . . . . . . . . . . . . . . . . . . 101
Diagnostic tools . . . . . . . . . . . . . . . . . . . . . . . . 101
Troubleshooting tables
. . . . . . . . . . . . . . . . . . . . . 102
. . . . . . . . . . . . . . . . . . . . 102
Fan-module problems . . . . . . . . . . . . . . . . . . . . . 103
Fan pack problems . . . . . . . . . . . . . . . . . . . . . . 105
I/O module problems . . . . . . . . . . . . . . . . . . . . . 105
Keyboard, mouse, or pointing-device problems. . . . . . . . . . . . 107
Management-module problems
. . . . . . . . . . . . . . . . . 107
. . . . . . . . . . . . . . . . . . . . . 108
Monitor or video problems . . . . . . . . . . . . . . . . . . . 110
Power problems . . . . . . . . . . . . . . . . . . . . . . . 111
Light path diagnostic LEDs . . . . . . . . . . . . . . . . . . . . 113
BladeCenter system LEDs . . . . . . . . . . . . . . . . . . . 113
Module LEDs . . . . . . . . . . . . . . . . . . . . . . . . 115
. . . . . . . . . . . . . . . . . . . . . . 117
. . . . . . . . . . . . . . . . . . . . . . . . . 118
Solving undetermined problems . . . . . . . . . . . . . . . . . . 118
Calling IBM for service
. . . . . . . . . . . . . . . . . . . . . 120
Appendix A. Getting help and technical assistance
. . . . . . . . . . . . . . . . . . . . . . . . 121
iv
BladeCenter HT Type 8740 and 8750: Problem Determination and Service Guide
Summary of Contents for BladeCenter HT 8740
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