System Board Jumper Settings; Disabling A Forgotten Password - Dell EMC PowerEdge R940xa Installation And Service Manual

Item Connector
40
J_SATA_3
41 A3, A9, A2, A8, A1, A7
42 A10, A4, A11, A5, A12, A6
43 CPU1
44 SATA D
45 SATA E
46 SATA F

System board jumper settings

For information on resetting the password jumper to disable a password, see the Disabling a forgotten password section.
Table 25. System board jumper settings
Jumper Setting
PWRD_EN
NVRAM_C
LR
CAUTION: Be careful when altering BIOS settings. The BIOS interface is designed for advanced users, you can change a
setting that could prevent your computer from starting correctly and you could suffer a potential loss of data.
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 3 and 5 to pins 1 and 3 and wait approximately 10 seconds.
4. Replace the jumper plug on pins 3 and 5.
5. Install the system cover. Reconnect the system to its electrical outlet and turn on the system, including any attached peripherals.

Disabling a forgotten password

The system's software security features include a system password and a setup password. The password jumper enables these password
features or disables them 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 4 and 6 to pins 2 and 4.
4. Install the system cover.
154 Jumpers and connectors
Description
SATA C connector—Optical drive SATA connector
Memory module sockets for CPU 1 DIMMs — Channels 0/1/2
Memory module sockets for CPU 1 DIMMs — Channels 3/4/5
CPU 1 processor and heat sink module socket—with dust cover
PCIe signal M5
PCIe signal M4
PCIe signal M6
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.