Keyboard
connector
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 53
Parallel
port
connector
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 53
Serial-port
connectors
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 53
Universal
Serial
Bus
connectors
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 54
Video
connector
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 54
Chapter
4.
Service
replaceable
units
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 55
Microprocessor
removal
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 56
Thermal
grease
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 58
Operator
information
panel
(external
LED
card)
.
.
.
.
.
.
.
.
.
.
.
.
. 59
Diagnostics
panel
card
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 61
Power
reset
card
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 62
Diskette
drive
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 63
CD-ROM
drive
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 64
Hard
disk
drive
backplane
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 65
Power
supply
cage
assembly
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 66
Center-fan
and
adapter-support
bracket
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 67
Center-fan
support
bracket
(dual
fan
guide)
.
.
.
.
.
.
.
.
.
.
.
.
. 69
Adapter-support
bracket
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 70
Front
fan
housing
(PCI
fan
guide)
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 72
Front
USB
connector
assembly
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 73
Switch
card
assembly
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 74
System
board
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 76
System-board
internal
connectors
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 78
System-board
internal
cable
connectors
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 79
System-board
switches
and
jumpers
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 80
System-board
external
connectors
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 82
System-board
LEDs
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 83
Light
path
diagnostics
panel
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 84
Chapter
5.
Diagnostics
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 87
General
checkout
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 87
Checkout
procedure
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 88
Diagnostic
tools
overview
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 89
POST
error
logs
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 90
Viewing
error
logs
from
the
Configuration/Setup
Utility
program
.
.
.
.
.
. 90
Viewing
error
logs
from
the
diagnostic
programs
.
.
.
.
.
.
.
.
.
.
. 90
Diagnostic
programs,
error
codes
and
messages
.
.
.
.
.
.
.
.
.
.
.
. 91
Diagnostic
text
message
format
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 91
Starting
the
diagnostic
programs
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 92
Light
path
diagnostics
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 93
Power-supply
LEDs
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 95
Updating
the
BMC
firmware
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 95
Resetting
the
BMC
firmware
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 96
Small
computer
system
interface
messages
.
.
.
.
.
.
.
.
.
.
.
.
.
. 97
Recovering
the
BIOS
code
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 97
Erasing
a
lost
or
forgotten
password
(clearing
CMOS
memory)
.
.
.
.
.
.
. 99
Updating
Remote
Supervisor
Adapter
II
SlimLine
firmware
.
.
.
.
.
.
.
. 100
Power
checkout
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 100
Troubleshooting
the
Ethernet
controller
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 101
Network
connection
problems
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 101
Ethernet
controller
troubleshooting
chart
.
.
.
.
.
.
.
.
.
.
.
.
.
. 101
Ethernet
controller
messages
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 102
Chapter
6.
Symptom-to-FRU
index
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 103
Beep
symptoms
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 104
vi
xSeries
236
Type
8841:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide
Summary of Contents for xSeries 236 8841
Page 1: ...xSeries 236 Type 8841 Hardware Maintenance Manual and Troubleshooting Guide...
Page 2: ......
Page 3: ...xSeries 236 Type 8841 Hardware Maintenance Manual and Troubleshooting Guide...
Page 20: ...10 xSeries 236 Type 8841 Hardware Maintenance Manual and Troubleshooting Guide...
Page 96: ...86 xSeries 236 Type 8841 Hardware Maintenance Manual and Troubleshooting Guide...
Page 152: ...142 xSeries 236 Type 8841 Hardware Maintenance Manual and Troubleshooting Guide...
Page 160: ...150 xSeries 236 Type 8841 Hardware Maintenance Manual and Troubleshooting Guide...
Page 173: ...Appendix B Safety information 163...
Page 174: ...164 xSeries 236 Type 8841 Hardware Maintenance Manual and Troubleshooting Guide...
Page 175: ...Appendix B Safety information 165...
Page 176: ...166 xSeries 236 Type 8841 Hardware Maintenance Manual and Troubleshooting Guide...
Page 177: ...Appendix B Safety information 167...
Page 178: ...168 xSeries 236 Type 8841 Hardware Maintenance Manual and Troubleshooting Guide...
Page 179: ...Appendix B Safety information 169...
Page 189: ...Appendix B Safety information 179...
Page 190: ...180 xSeries 236 Type 8841 Hardware Maintenance Manual and Troubleshooting Guide...
Page 191: ...Appendix B Safety information 181...
Page 192: ...182 xSeries 236 Type 8841 Hardware Maintenance Manual and Troubleshooting Guide...
Page 196: ...186 xSeries 236 Type 8841 Hardware Maintenance Manual and Troubleshooting Guide...
Page 208: ...198 xSeries 236 Type 8841 Hardware Maintenance Manual and Troubleshooting Guide...
Page 209: ......
Page 210: ...Part Number 25K8114 1P P N 25K8114...