Dell EMC XC640 Series - Jumpers and connectors; System board jumper settings

Jumpers and connectors
This topic provides specific information about the jumpers. It also provides some basic information about jumpers and switches
and describes the connectors on the various boards in the system. Jumpers on the system board help to disable the system and
setup passwords. You must know the connectors on the system board to install components and cables correctly.
Topics:
• System board jumper settings
• System board jumpers and connectors
• Disabling forgotten password
System board jumper settings
For information on resetting the password jumper to disable a password, see the Disabling a forgotten password section.
Table 46. System 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.
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