Table 61. System board jumpers and connectors(continued)
Item Connector Description
40 SL1_CPU2_PA1 PCIe connector 1
41 PWRD_EN and NVRAM_CLR Jumper
42 LFT_CP Left control panel connector
43 A8, A16, A2, A10, A6, A14, A4, A12 DIMMs for CPU 1 channels H, G, F, E
44 CPU 2 Processor 2
45 B8, B16, B2, B10, B6, B14, B4, B12 DIMMs for CPU 2 channels H, G, F, E
46 PWR2_B For Riser 4 GPU power
47 PWR2_A For power cable
48 PSU2_SIG PUCK sideband signal for Riser 4 GPU
49 IO_RISER4 (CPU2) Riser 4
50 SL9_CPU2_PA5 PCIe connector 9
51 BAT_SIG Battery signal connector
System board jumper settings
This section describes system board jumper settings.
Table 62. System board jumper settings
Jumper Setting Description
PWRD_EN 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.
NVRAM_CLR The BIOS configuration settings are retained at system boot.
The BIOS configuration settings are cleared at system boot.
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.
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Jumpers and connectors
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