IBM 8646 Hardware Maintenance Manual - Page 25

Identifying problems using status LEDs, Front panel and system board LEDs, Diagnostic LEDs, CPU 1

Get IBM 8646 - Eserver xSeries 220 PDF manuals and user guides View all IBM 8646 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 25 highlights

5. Insert the BIOS flash diskette in the diskette drive. 6. Restart the server. The system begins the power-on self-test (POST). 7. Follow the on-screen instructions to update the BIOS. 8. Turn off the server and unplug the power cord when the flash update is complete. 9. Move jumper J38 to the ″hi″ setting (pins 2 and 3) to return to normal startup mode. 10. Re-connect the power cord and all external cables and re-install the cover. 11. Restart the server Identifying problems using status LEDs The server has LEDs to help you identify problems with some server components. These LEDs are part of the diagnostics that are built into the server. Use the illuminated LEDs to identify the failing or incorrectly installed components. Front panel and system board LEDs The system error LED is on the front panel inside the server. All of the remaining error LEDs are on the system board, adjacent to the failing components. See "Diagnostic LEDs" for information on identifying problems using these LEDs. The meanings of these LEDs are as follows: CPU 1 Microprocessor number 1 (connector U12) fault CPU 2 Microprocessor number 2 (connector U11) fault Fan 1 Fan number 1 (connector J10) failure (see note 1) Fan 2 Fan number 2 (connector J18) failure (see note 1) Fan 3 Fan number 3 (connector J3) failure (see note 1) Fan 4 Fan number 4 (connector J2) failure (see note 1) DIMM 1 DIMM number 1 (connector DIMM 1) fault DIMM 2 DIMM number 2 (connector DIMM 2) fault DIMM 3 DIMM number 3 (connector DIMM 3) fault DIMM 4 DIMM number 4 (connector DIMM 4) fault VRM 1 Microprocessor VRM number 1 (connector J42) fault (see note 1) VRM 2 Microprocessor VRM number 2 (connector J12) fault (see note 1) Notes: 1. The fan and VRM LEDs will illuminate only if the IBM Remote Supervisor Adapter is installed in the server. 2. The server does not support user-replaceable power supplies or fans. Diagnostic LEDs You can use the diagnostic LEDs built into the server to quickly identify the type of system error that occurred. The server is designed so that LEDs remain illuminated when the server shuts down, as long as the power supply is operating properly. This feature helps you to isolate the problem if an error causes the server to shut down. To correct specific problems, see "Symptom-to-FRU index" on page 91. Diagnostics 17

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
  • 152
  • 153
  • 154
  • 155
  • 156
5.
Insert the BIOS flash diskette in the diskette drive.
6.
Restart the server. The system begins the power-on self-test (POST).
7.
Follow the on-screen instructions to update the BIOS.
8.
Turn off the server and unplug the power cord when the flash update is
complete.
9.
Move jumper J38 to the
″
hi
″
setting (pins 2 and 3) to return to normal startup
mode.
10.
Re-connect the power cord and all external cables and re-install the cover.
11.
Restart the server
Identifying problems using status LEDs
The server has LEDs to help you identify problems with some server components.
These LEDs are part of the diagnostics that are built into the server. Use the
illuminated LEDs to identify the failing or incorrectly installed components.
Front panel and system board LEDs
The system error LED is on the front panel inside the server. All of the remaining
error LEDs are on the system board, adjacent to the failing components. See
“
Diagnostic LEDs
”
for information on identifying problems using these LEDs.
The meanings of these LEDs are as follows:
CPU 1
Microprocessor number 1 (connector U12) fault
CPU 2
Microprocessor number 2 (connector U11) fault
Fan 1
Fan number 1 (connector J10) failure (see note 1)
Fan 2
Fan number 2 (connector J18) failure (see note 1)
Fan 3
Fan number 3 (connector J3) failure (see note 1)
Fan 4
Fan number 4 (connector J2) failure (see note 1)
DIMM 1
DIMM number 1 (connector DIMM 1) fault
DIMM 2
DIMM number 2 (connector DIMM 2) fault
DIMM 3
DIMM number 3 (connector DIMM 3) fault
DIMM 4
DIMM number 4 (connector DIMM 4) fault
VRM 1
Microprocessor VRM number 1 (connector J42) fault (see note 1)
VRM 2
Microprocessor VRM number 2 (connector J12) fault (see note 1)
Notes:
1.
The fan and VRM LEDs will illuminate only if the IBM Remote Supervisor
Adapter is installed in the server.
2.
The server does not support user-replaceable power supplies or fans.
Diagnostic LEDs
You can use the diagnostic LEDs built into the server to quickly identify the type
of system error that occurred. The server is designed so that LEDs remain
illuminated when the server shuts down, as long as the power supply is operating
properly. This feature helps you to isolate the problem if an error causes the server
to shut down. To correct specific problems, see
“
Symptom-to-FRU index
”
on
page 91.
Diagnostics
17