System Board Jumper Settings; Disabling Forgotten Password - Dell EMC PowerEdge R940 Installation And Service Manual

Table 30. Processor expansion module (PEM) connectors (continued)
Item Connector
8 RM_UPI_C
9 RM_UPI_B
10 J_PEM_CLK
11 RM_UPI_A
12 RM_UPI_D
13 J_IORR_PWR
14 IO_RISER3
15 CPU4

System board jumper settings

For information on resetting the password jumper to disable a password, see the
Table 31. System board jumper settings
Jumper
PWRD_EN
NVRAM_CLR

Disabling 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. 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 2 and 4 to pins 4 and 6.
4. Install the system cover.
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.
132 PowerEdge R940 Jumpers and connectors
Setting
Description
UPI cable connector "C"
UPI cable connector "B"
PEM clock connector
UPI cable connector "A"
UPI cable connector "D"
Right expansion card riser power connector
Riser 3 connector
CPU4 processor heat sink module socket
Disabling a forgotten password
Description
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.
The BIOS configuration settings are retained at system boot.
The BIOS configuration settings are cleared at system boot.
section.