Dell PowerEdge R840 EMC Installation and Service Manual - Page 151

System board jumper settings

Get Dell PowerEdge R840 PDF manuals and user guides View all Dell PowerEdge R840 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 151 highlights

Table 22. System board jumpers and connectors (continued) Item Connector 39 J_NDC 40 J_RISER1 41 J_SATA_2 42 J_PSWD 43 NVRAM_CLR 44 J_FRONT_VIDEO 45 J_SATA_3 46 A3, A9, A2, A8, A1, A7 47 A10, A4, A11, A5, A12, A6 48 CPU1 49 PCIe_M5 50 PCIe_M6 51 PCIe_M4 Description NDC connector PCIe riser 1 connector NPIO connector 2 for x8 backplane Reset BIOS password Clear NVRAM Video connector SATA C connector-Optical drive SATA connector Memory module sockets Memory module sockets CPU1 processor and heat sink module socket-with dust cover PCIe Signal M5 connector PCIe Signal M6 connector PCIe Signal M4 connector CAUTION: When replacing the system board, disconnect the cables from the system board, but do not disconnect the cables attached to the PIB. System board jumper settings For information on resetting the password jumper to disable a password, see the Disabling a forgotten password section. Table 23. System board jumper settings Jumper Setting PWRD_EN Description The BIOS password feature is enabled. NVRAM_C LR The BIOS password feature is disabled. iDRAC local access is unlocked at next AC power cycle. iDRAC password reset is enabled in F2 iDRAC settings menu. The BIOS configuration settings are retained at system boot. The BIOS configuration settings are cleared at system boot. CAUTION: Be careful when altering BIOS settings. The BIOS interface is designed for advanced users, you can change a setting that could prevent your computer from starting correctly and you could suffer a potential loss of data. 1. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet. 2. Remove the system cover. 3. Move the jumper on the system board jumper from pins 3 and 5 to pins 1 and 3 and wait approximately 10 seconds. 4. Replace the jumper plug on pins 3 and 5. 5. Install the system cover. Reconnect the system to its electrical outlet and turn on the system, including any attached peripherals. Jumpers and connectors 151

  • 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
Table 22. System board jumpers and connectors (continued)
Item
Connector
Description
39
J_NDC
NDC connector
40
J_RISER1
PCIe riser 1 connector
41
J_SATA_2
NPIO connector 2 for x8 backplane
42
J_PSWD
Reset BIOS password
43
NVRAM_CLR
Clear NVRAM
44
J_FRONT_VIDEO
Video connector
45
J_SATA_3
SATA C connector—Optical drive SATA connector
46
A3, A9, A2, A8, A1, A7
Memory module sockets
47
A10, A4, A11, A5, A12, A6
Memory module sockets
48
CPU1
CPU1 processor and heat sink module socket—with
dust cover
49
PCIe_M5
PCIe Signal M5 connector
50
PCIe_M6
PCIe Signal M6 connector
51
PCIe_M4
PCIe Signal M4 connector
CAUTION:
When replacing the system board, disconnect the cables from the system board, but do not disconnect the
cables attached to the PIB.
System board jumper settings
For information on resetting the password jumper to disable a password, see the Disabling a forgotten password section.
Table 23. System board jumper settings
Jumper
Setting
Description
PWRD_EN
The BIOS password feature is enabled.
The BIOS password feature is disabled. iDRAC local access is unlocked at next AC power cycle.
iDRAC password reset is enabled in F2 iDRAC settings menu.
NVRAM_C
LR
The BIOS configuration settings are retained at system boot.
The BIOS configuration settings are cleared at system boot.
CAUTION:
Be careful when altering BIOS settings. The BIOS interface is designed for advanced users, you can change a
setting that could prevent your computer from starting correctly and you could suffer a potential loss of data.
1.
Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet.
2.
Remove the system cover.
3.
Move the jumper on the system board jumper from pins 3 and 5 to pins 1 and 3 and wait approximately 10 seconds.
4.
Replace the jumper plug on pins 3 and 5.
5.
Install the system cover. Reconnect the system to its electrical outlet and turn on the system, including any attached peripherals.
Jumpers and connectors
151