System Board Jumpers
Dell™ PowerEdge™ 1950 Systems Hardware Owner's Manual
Disabling a Forgotten Password
SAS/SATA Backplane Board Connectors
Expansion-Card Riser-Board Components and PCI Buses
SAS Sideplane Board Connectors
This section provides specific information about the system jumpers. It also provides some basic information on jumpers and switches and describes the connectors on the various boards in the system.
Figure 6-1 shows the location of the configuration jumpers on the system board. Table 6-1 lists the jumper settings.
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NOTE: To access the jumpers, remove the system board cooling shroud by lifting the release latch and sliding the shroud towards the front of the system. See Figure 3-13. |
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NOTE: Lift up the memory module airflow shroud for easy access to the jumpers. |
Figure 6-1. System Board Jumpers
Table 6-1. System Board Jumper Settings
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Jumper |
Setting |
Description |
|---|---|---|---|
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1 |
PWRD_EN |
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The password feature is enabled. |
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The password feature is disabled. | |
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2 |
NVRAM_CLR |
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The configuration settings are retained at system boot. |
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The configuration settings are cleared at the next system boot. (If the configuration settings become corrupted to the point where the system will not boot, install the jumper and boot the system. Remove the jumper before restoring the configuration information.) | |
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NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary. | |||
The system's software security features include a system password and a setup password, which are discussed in detail in Using the System Setup Program. The password jumper enables these password features or disables them and clears any password(s) currently in use.
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NOTICE: See "Protecting Against Electrostatic Discharge" in the safety instructions in your Product Information Guide. |
See Figure 6-1 to locate the password jumper on the system board.
The existing passwords are not disabled (erased) until the system boots with the password jumper plug removed. However, before you assign a new system and/or setup password, you must install the jumper plug.
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NOTE: If you assign a new system and/or setup password with the jumper plug still removed, the system disables the new password(s) the next time it boots. |
To assign a new password using the System Setup program, see Assigning a System Password.
See Figure 6-2 and Table 6-2 for the location and description of system board connectors.
Figure 6-2. System Board Connectors
Table 6-2. System Board Connectors
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Connector |
Description |
|---|---|---|
1 | RAC_CONN2 | Connector for the remote access control connector (RAC) |
2 | RAC_CONN1 | Connector for the remote access control connector |
3 | NVRAM_CLR | Configuration jumper |
4 | PWRD_EN | Password jumper |
5 | DIMM 1 | Memory module connector, slot 1 |
6 | DIMM 5 | Memory module connector, slot 5 |
7 | DIMM 2 | Memory module connector, slot 2 |
8 | DIMM 6 | Memory module connector, slot 6 |
9 | DIMM 3 | Memory module connector, slot 3 |
10 | DIMM 7 | Memory module connector, slot 7 |
11 | DIMM 4 | Memory module connector, slot 4 |
12 | DIMM 8 | Memory module connector, slot 8 |
13 | FAN_MOD4 | System cooling fan module 4 connector |
14 | CPU1 | Microprocessor connector 1 |
15 | FAN_MOD3 | System cooling fan module 3 connector |
16 | FAN_MOD2 | System cooling fan module 2 connector |
17 | CPU2 | Microprocessor connector 2 |
18 | FAN_MOD1 | System cooling fan module 1 connector |
19 | SIDEPLANE | Sideplane connector |
20 | BACKPLANE | Backplane power connector |
21 | TOE_KEY | TCP/IP offload engine key |
22 | LEFT PCIe RISER | Left riser board connector |
23 | SATA_A | SATA A connector |
24 | BATTERY | Connector for the 3.0-V coin battery |
25 | LEFT PCI-X RISER | Left riser board connector (PCIe or PCI-X) |
26 | CENTER RISER | Center riser board connector (PCIe or PCI-X) |
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NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary. | ||
Figure 6-3 shows the location of the connectors on the SAS/SATA backplane board that supports two 3.5-inch hard drives (Option 1).
Figure 6-3. SAS 3.5-Inch-Drive Backplane Board Components - Option 1
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1 |
backplane power connector |
2 |
Drive 0 connector |
3 |
SAS A connector |
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4 |
Drive 1 connector |
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Figure 6-4 and Figure 6-5 show the location of the connectors on the SAS/SATA backplane board that supports four 2.5-inch hard drives (Option 2).
Figure 6-4. SAS 2.5-Inch-Drive Backplane Board Components - Option 2 (Front)
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1 |
Drive 1 connector |
2 |
Drive 0 connector |
3 |
Drive 3 connector |
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4 |
Drive 2 connector |
5 |
securing tabs |
6 |
securing slots |
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7 |
release latches (2) |
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Figure 6-5. SAS Backplane Board Components - Option 2 (Back)
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1 |
SAS A connector |
2 |
backplane power connector |
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There are two expansion card configurations for this systems. Each riser (center riser and left riser) contains one slot for either a PCI-X configuration or a PCIe configuration. This system supports only one configuration (PCI-X or PCIe) for both risers. Figure 6-6 and Figure 6-7 show the components on the optional PCI-X expansion-card riser boards, including the expansion-card slots and buses. PCIe Riser Board Expansion Slots and PCI-X Riser Board Expansion Slots list the PCI bus and operating speed for each expansion-card slot.
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NOTE: Because the orientation and physical connectors are similar, the PCIe expansion card configuration is not shown. |
Figure 6-6. Optional PCI-X Expansion-Card Left Riser Board Components
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1 |
connector to system board |
2 |
slot 2 PCI-X 64 bit/133 MHz |
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Figure 6-7. Optional PCI-X Expansion-Card Center Riser Board Components
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1 |
slot 1 PCI-X |
2 |
connector to system board |
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Figure 6-8. Side Plane Components
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1 |
SAS daughter card connector |
2 |
control panel connector |
3 |
IDE/optical drive connector |
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4 |
chassis intrusion switch |
5 |
connector to system board |
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