IBM 9228 Service Guide - Page 133

Power problems, Press Ctrl+Alt+Delete.

Get IBM 9228 - IntelliStation Z - Pro PDF manuals and user guides
UPC - 000435947840
View all IBM 9228 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 133 highlights

Power problems v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved. v See Chapter 3, "Parts listing, Type 9228 and 9232," on page 19 to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU). v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a trained service technician. Symptom Action The power-control button does not work, and the reset button, if supported, does work. 1. (Trained service technician only) Reseat the power switch/LED assembly cable. 2. Replace the following components one at a time, in the order shown, restarting the computer each time: a. (Trained service technician only) Power switch/LED assembly b. (Trained service technician only) System board The computer does not start. 1. Make sure that: v The power cords are correctly connected to the computer and to a working electrical outlet. v The type of memory that is installed is correct. 2. If you just installed an optional device, remove it, and restart the computer. If the computer now starts, you might have installed more devices than the power supply supports. 3. Override the front panel power-control button: a. Disconnect the computer power cords. b. Reconnect the power cords. 4. (Trained service technician only) If the computer does not start, replace the system board. 5. See "Solving undetermined problems" on page 146. The computer does not turn off. 1. Determine whether you are using an Advanced Configuration and Power Interface (ACPI) or a non-ACPI operating system. If you are using a non-ACPI operating system, complete the following steps: a. Press Ctrl+Alt+Delete. b. Turn off the computer by pressing the power-control button for 4 seconds. c. If computer fails POST and the power-control button does not work, disconnect the ac power cord. 2. If the problem remains or if you are using an ACPI-aware operating system, the problem might be with the system board. Chapter 5. Diagnostics 115

  • 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
Power problems
v
Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v
See Chapter 3, “Parts listing, Type 9228 and 9232,” on page 19 to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
v
If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Symptom
Action
The power-control button does
not work, and the reset button,
if supported, does work.
1.
(Trained service technician only) Reseat the power switch/LED assembly cable.
2.
Replace the following components one at a time, in the order shown, restarting
the computer each time:
a.
(Trained service technician only) Power switch/LED assembly
b.
(Trained service technician only) System board
The computer does not start.
1.
Make sure that:
v
The power cords are correctly connected to the computer and to a working
electrical outlet.
v
The type of memory that is installed is correct.
2.
If you just installed an optional device, remove it, and restart the computer. If
the computer now starts, you might have installed more devices than the power
supply supports.
3.
Override the front panel power-control button:
a.
Disconnect the computer power cords.
b.
Reconnect the power cords.
4.
(Trained service technician only) If the computer does not start, replace the
system board.
5.
See “Solving undetermined problems” on page 146.
The computer does not turn off.
1.
Determine whether you are using an Advanced Configuration and Power
Interface (ACPI) or a non-ACPI operating system. If you are using a non-ACPI
operating system, complete the following steps:
a.
Press Ctrl+Alt+Delete.
b.
Turn off the computer by pressing the power-control button for 4 seconds.
c.
If computer fails POST and the power-control button does not work,
disconnect the ac power cord.
2.
If the problem remains or if you are using an ACPI-aware operating system, the
problem might be with the system board.
Chapter 5. Diagnostics
115