Dell EMC PowerEdge R840 Installation and Service Manual

For information on resetting the password jumper to disable a password, see the Disabling a forgotten password section.

Table 1. System board jumper settingsSystem board jumper settings

Jumper	Setting	Description
PWRD_EN		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.
NVRAM_CLR		The BIOS configuration settings are retained at system boot.
		The BIOS configuration settings are cleared at system boot.

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 (NVRAM_CLR) on the system board jumper from pins 3 and 5 to pins 1 and 3 and wait approximately 10 seconds. Move the 2-pin jumper (PWRD_EN) plug from the password jumper to pins into the CMOS jumper.
4. Replace the jumper plug on pins 3 and 5.
5. Install the system cover. Plug in AC Power to the system and wait ten seconds for the CMOS to clear, reconnect the system to its electrical outlet and turn on the system, including any attached peripherals.