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Table 61. System board jumpers and connectors (continued)
Item
40
41
42
43
44
45
46
47
48
49
50
51
System board jumper settings
This section describes system board jumper settings.
Table 62. System board jumper settings
Jumper
PWRD_EN
NVRAM_CLR
CAUTION:
Use caution when changing the BIOS settings. The BIOS interface is designed for advanced users.
Changes to the settings could prevent your system from starting correctly and could result in data loss.
Disable system and software password features
Prerequisites
The software security features of the system include a system password and a setup password. The password jumper enables or
disables password features and clears any existing passwords.
CAUTION:
Only certified service technicians can perform many of the repairs. You should perform only
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online
or telephone service and support team. The warranty does not cover damage due to servicing that Dell has not
authorized. Read and follow the safety instructions that are shipped with your product.
Steps
1. Power off the system and all the peripherals that are attached.
2. Disconnect the system power cable from the electrical outlet.
192
Jumpers and connectors
Connector
SL1_CPU2_PA1
PWRD_EN and NVRAM_CLR
LFT_CP
A8, A16, A2, A10, A6, A14, A4, A12
CPU 2
B8, B16, B2, B10, B6, B14, B4, B12
PWR2_B
PWR2_A
PSU2_SIG
IO_RISER4 (CPU2)
SL9_CPU2_PA5
BAT_SIG
Setting
Description
PCIe connector 1
Jumper
Left control panel connector
DIMMs for CPU 1 channels H, G, F, E
Processor 2
DIMMs for CPU 2 channels H, G, F, E
For Riser 4 GPU power
For power cable
PUCK sideband signal for Riser 4 GPU
Riser 4
PCIe connector 9
Battery signal connector
Description
The BIOS password feature is enabled.
The BIOS password feature is disabled. The BIOS password is
now disabled, and you are not allowed to set a new password.
The BIOS configuration settings are retained at system boot.
The BIOS configuration settings are cleared at system boot.
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