IBM 7940 Problem Determination And Service Manual page 154

diagnostic (continued)
test log, viewing 102
text message format 102
tools, overview 67
DIMMs
installing 41
replacing 39
disk drive cage
replacing 53
diskette drive
USB 6
display problems 92
dual inline memory module (DIMM)
coordination with microprocessors 40
installation sequence
one microprocessor 40
two microprocessors 40
DVD drive
activity LED 5
DVD-eject button 5
problems 86
replacing 36
DVD-eject button 5
E
electrical input specifications 4
electronic emission Class A notice 131
environment
air temperature 4
humidity 4
error codes and messages
beep 67
diagnostic 103
POST/BIOS 77
error LEDs
power supply 100
system board 98
error logs
BMC 76
clearing 76
POST 76
system error 76
viewing 76
error symptoms
CD or DVD drive 86
general 87
hard disk drive 88
intermittent 88
keyboard, USB 89
memory 90
microprocessor 91
monitor 92
mouse, USB 89
optional devices 94
pointing device, USB 89
power 95
serial port 96
ServerGuide 96
software 97
USB device 97
136
IBM System x3455 Type 7940 and 7941: Problem Determination and Service Guide
Ethernet
connector 7
controller
configuring 16
troubleshooting 119
LAN activity LEDs 7
link LED 7
expansion slot
specifications 3
F
fan
replacing 42, 43
FCC Class A notice 131
features
server 3
field replaceable units (FRUs) 21
firmware, updating 15
BMC 16
forgotten password, bypassing 117
front view 5
FRUs
list of 29
replacing 29
G
Gigabit Ethernet connectors 7
H
handling
static-sensitive devices 30
hard disk drive
activity LED 6
installing 57, 59
problems 88
replacing 56, 58
heat output specifications 4
heat sink
replacing 63
HTX
riser card 7
I
IBM service 122
important notices 2
input/output connectors 5, 6
installation sequence
DIMMs
one microprocessor 40
two microprocessors 40
installing
adapters 36
air baffle 33
battery 44
CD or DVD drive 38
CD-RW/DVD backplane 52