IBM 7945E2U User Manual - Page 47

Jumper, number, Jumper setting, Notes

Get IBM 7945E2U PDF manuals and user guides View all IBM 7945E2U manuals
Add to My Manuals
Save this manual to your list of manuals

Page 47 highlights

Table 3. System board jumpers (continued) Jumper number Jumper name Jumper setting J147 IMM recovery jumper v Pins 1 and 2: Normal (default) Loads the primary IMM firmware ROM page. v Pins 2 and 3: Loads the secondary (backup) IMM firmware ROM page. Notes: 1. If no jumper is present, the server responds as if the pins are set to 1 and 2. 2. Changing the position of the UEFI boot recovery jumper from pins 1 and 2 to pins 2 and 3 before the server is turned on alters which flash ROM page is loaded. Do not change the jumper pin position after the server is turned on. This can cause an unpredictable problem. The following illustration shows the jumper settings for switch blocks SW3 and SW4 on the system board. 1234 1234 SW4 switch block Off Off SW3 switch block Table 4 on page 32 and Table 5 on page 32 describe the function of each switch on SW3 and SW4 switch blocks on the system board. Chapter 2. Installing optional devices 31

  • 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
Table 3. System board jumpers (continued)
Jumper
number
Jumper
name
Jumper setting
J147
IMM
recovery
jumper
v
Pins 1 and 2: Normal (default) Loads the primary IMM
firmware ROM page.
v
Pins 2 and 3: Loads the secondary (backup) IMM firmware
ROM page.
Notes:
1.
If no jumper is present, the server responds as if the pins are set to 1 and 2.
2.
Changing the position of the UEFI boot recovery jumper from pins 1 and 2 to pins 2 and
3 before the server is turned on alters which flash ROM page is loaded. Do not change
the jumper pin position after the server is turned on. This can cause an unpredictable
problem.
The following illustration shows the jumper settings for switch blocks SW3 and SW4
on the system board.
SW3 switch block
SW4 switch block
1234
1234
Off
Off
Table 4 on page 32 and Table 5 on page 32 describe the function of each switch on
SW3 and SW4 switch blocks on the system board.
Chapter 2. Installing optional devices
31