IBM 84885BU User Manual - Page 27

Diagnostic, error, System, board

Get IBM 84885BU PDF manuals and user guides View all IBM 84885BU manuals
Add to My Manuals
Save this manual to your list of manuals

Page 27 highlights

Diagnostic error LEDs Error LEDs are located on the system board and on the hard disk drives. System board error LEDs If the system-error LED on the front of the server is lit, there might also be lit LEDs on the system board. The following illustration shows the locations of the error LEDs on the system board. Fan 1 error LED (D26) DIMM 6 error LED (D16) DIMM 5 error LED (D17) DIMM 4 error LED (D18) DIMM 3 error LED (D19) DIMM 2 error LED (D20) DIMM 1 error LED (D21) Fan 2 error LED (D27) Fan 4 error LED (D29) Fan 3 error LED (D25) (reserved) Microprocessor 2 error LED (D22) Microprocessor 1 error LED (D23) If any of these LEDs is lit, it indicates a problem with the associated component. After a problem is corrected, its LED will not be lit the next time the server is restarted. If the LED remains lit after the server is restarted, the problem remains. Complete the following steps to view the lit error LEDs: 1. Read Appendix B, "Safety information," on page 143 and "Handling static-sensitive devices" on page 26. 2. Remove the side cover (see "Removing the side cover" on page 28). 3. Remove the support bracket (see "Removing and installing the support bracket" on page 32). 4. Open the microprocessor air baffle (see "Opening and closing the microprocessor air baffle" on page 33). 5. If any error LEDs are lit, complete the following steps: a. Note which LEDs are lit. b. Turn off the server and all attached devices. c. Follow the instructions at "Diagnostic error LEDs" on page 109. Chapter 3. 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
  • 157
  • 158
  • 159
  • 160
  • 161
  • 162
  • 163
  • 164
  • 165
  • 166
  • 167
  • 168
  • 169
  • 170
  • 171
  • 172
  • 173
  • 174
  • 175
  • 176
  • 177
  • 178
  • 179
  • 180
  • 181
  • 182
  • 183
  • 184
  • 185
  • 186
  • 187
  • 188
  • 189
  • 190
  • 191
  • 192
  • 193
  • 194
  • 195
  • 196
  • 197
  • 198
  • 199
  • 200
Diagnostic
error
LEDs
Error
LEDs
are
located
on
the
system
board
and
on
the
hard
disk
drives.
System
board
error
LEDs
If
the
system-error
LED
on
the
front
of
the
server
is
lit,
there
might
also
be
lit
LEDs
on
the
system
board.
The
following
illustration
shows
the
locations
of
the
error
LEDs
on
the
system
board.
DIMM 5
error LED (D17)
DIMM 4
error LED (D18)
DIMM 3
error LED (D19)
DIMM 2
error LED
DIMM 1
error LED (D21)
Fan 2
error LED (D27)
Fan 1
error LED (D26)
Fan 3
error LED (D25)
(reserved)
Fan 4
error LED (D29)
Microprocessor 1
error LED (D23)
Microprocessor 2
error LED (D22)
DIMM 6
error LED (D16)
(D20)
If
any
of
these
LEDs
is
lit,
it
indicates
a
problem
with
the
associated
component.
After
a
problem
is
corrected,
its
LED
will
not
be
lit
the
next
time
the
server
is
restarted.
If
the
LED
remains
lit
after
the
server
is
restarted,
the
problem
remains.
Complete
the
following
steps
to
view
the
lit
error
LEDs:
1.
Read
Appendix
B,
“Safety
information,”
on
page
143
and
“Handling
static-sensitive
devices”
on
page
26.
2.
Remove
the
side
cover
(see
“Removing
the
side
cover”
on
page
28).
3.
Remove
the
support
bracket
(see
“Removing
and
installing
the
support
bracket”
on
page
32).
4.
Open
the
microprocessor
air
baffle
(see
“Opening
and
closing
the
microprocessor
air
baffle”
on
page
33).
5.
If
any
error
LEDs
are
lit,
complete
the
following
steps:
a.
Note
which
LEDs
are
lit.
b.
Turn
off
the
server
and
all
attached
devices.
c.
Follow
the
instructions
at
“Diagnostic
error
LEDs”
on
page
109.
Chapter
3.
Diagnostics
17