System Board Jumper Settings; Disabling A Forgotten Password - Dell EMC PowerEdge R750 Installation And Service Manual

Table 75. System board jumpers and connectors (continued)
Item
40.
41.
42 .
43.
44.
45.

System board jumper settings

For information about resetting the password jumper to disable a password, see the
Table 76. System board jumper settings
Jumper
PWRD_EN
NVRAM_CLR
CAUTION: Be careful when changing the BIOS settings. The BIOS interface is designed for advanced users. Any
change in the setting could prevent your system from starting correctly and you might have potential loss of
data.

Disabling a forgotten password

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 password(s) currently in use.
Prerequisites
CAUTION: Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by
your warranty. Read and follow the safety instructions that are shipped with your product.
Steps
1. Power off the system and all attached peripherals. Disconnect the system from the electrical outlet, and disconnect the
peripherals.
2. Remove the system cover.
3. Move the jumper on the system board from pins 2 and 4 to pins 4 and 6.
4. Replace the system cover.
NOTE: The existing passwords are not disabled (erased) until the system boots with the jumper on pins 4 and 6.
However, before you assign a new system and/or setup password, you must move the jumper back to pins 2 and 4.
Connector
CPU 2
2U[FAN1]
SL1_CPU2_PB1
B6, B14, B2, B10, B8, B16, B4, B12
NVRAM_CLR
PWRD_EN
Setting
Description
Processor 2
Fan 1
PCIe connector 1
DIMMs for CPU 2 channels E, F, G, H
NVRAM_CLR (Jumpers)
PWRD_EN (Jumpers)
Disabling a forgotten password
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.
section.
Jumpers and connectors 223