HP 9000 rp4410-4 User Service Guide, Fifth Edition - HP 9000 rp4410/4440 - Page 220

Power Distribution Board, Removing the Power Distribution Board

Get HP 9000 rp4410-4 PDF manuals and user guides View all HP 9000 rp4410-4 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 220 highlights

Power Distribution Board The power distribution board is attached to the rear power supply cage, underneath the hot-swappable power supply fan unit. WARNING! Ensure that the system is powered off and all power sources have been disconnected from the server before removing or replacing the power distribution board. Voltages are present at various locations within the server whenever an AC power source is connected. This voltage is present even when the main power switch is in the off position. Failure to observe this warning can result in personal injury or damage to equipment. CAUTION: Failure to properly complete the steps in this procedure results in erratic system behavior or system failure. For assistance with this procedure contact your local HP Authorized Service Provider. Observe all ESD safety precautions before attempting this procedure. Failure to follow ESD safety precautions can result in damage to the server. Removing the Power Distribution Board To remove the power distribution board, follow these steps: 1. If rack-mounted, slide the server out from the rack until it stops. See "Accessing a Rack-Mounted Server" (page 149). 2. Remove the top cover. See "Removing the Top Cover" (page 153). 3. Remove the power supply fan unit from the chassis. See "Removing a Hot-Swappable Chassis Fan Unit" (page 172). 4. Remove the hot-swappable power supplies from the chassis. See "Removing a Hot-Swappable Power Supply" (page 218). 5. Unplug the power cable and the signal cable from the midplane riser board. 6. Unplug the QuickFind diagnostic board cable. 7. Using a Torx 15 driver, loosen the one T-15 screw attaching the power distribution board to the chassis. (Figure 6-53) 8. To release the power distribution board from the keyway slots, push it toward the center of the chassis. 220 Removing and Replacing Components

  • 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
  • 201
  • 202
  • 203
  • 204
  • 205
  • 206
  • 207
  • 208
  • 209
  • 210
  • 211
  • 212
  • 213
  • 214
  • 215
  • 216
  • 217
  • 218
  • 219
  • 220
  • 221
  • 222
  • 223
  • 224
  • 225
  • 226
  • 227
  • 228
  • 229
  • 230
  • 231
  • 232
  • 233
  • 234
  • 235
  • 236
  • 237
  • 238
  • 239
  • 240
  • 241
  • 242
  • 243
  • 244
  • 245
  • 246
Power Distribution Board
The power distribution board is attached to the rear power supply cage, underneath the
hot-swappable power supply fan unit.
WARNING!
Ensure that the system is powered off and all power sources have been disconnected
from the server before removing or replacing the power distribution board.
Voltages are present at various locations within the server whenever an AC power source is
connected. This voltage is present even when the main power switch is in the off position.
Failure to observe this warning can result in personal injury or damage to equipment.
CAUTION:
Failure to properly complete the steps in this procedure results in erratic system
behavior or system failure. For assistance with this procedure contact your local HP Authorized
Service Provider.
Observe all ESD safety precautions before attempting this procedure. Failure to follow ESD safety
precautions can result in damage to the server.
Removing the Power Distribution Board
To remove the power distribution board, follow these steps:
1.
If rack-mounted, slide the server out from the rack until it stops. See
“Accessing a
Rack-Mounted Server” (page 149)
.
2.
Remove the top cover. See
“Removing the Top Cover” (page 153)
.
3.
Remove the power supply fan unit from the chassis. See
“Removing a Hot-Swappable
Chassis Fan Unit” (page 172)
.
4.
Remove the hot-swappable power supplies from the chassis. See
“Removing a Hot-Swappable
Power Supply” (page 218)
.
5.
Unplug the power cable and the signal cable from the midplane riser board.
6.
Unplug the QuickFind diagnostic board cable.
7.
Using a Torx 15 driver, loosen the one T-15 screw attaching the power distribution board
to the chassis. (
Figure 6-53
)
8.
To release the power distribution board from the keyway slots, push it toward the center of
the chassis.
220
Removing and Replacing Components