Dell PowerEdge M640 EMC for VRTX enclosure Installation and Service Manual - Page 103

System board jumper settings, Disabling a forgotten password

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Table 27. System board jumpers and connectors (continued) Item Connector 12. MEZZ1_FAB_C 13. MEZZ2_FAB_B 14 VFLASH 15 bNDC 16 CPU1 17 CPU2 18 BATTERY Description Mezzanine card connector Mezzanine card connector Micro vFlash card connector Network Daughter Card (NDC) connector Processor 1 Processor 2 System battery connector System board jumper settings For information on resetting the password jumper to disable a password, see Disabling a forgotten password on page 103. Table 28. System board jumper settings Jumper Setting NVRAM_CLR (default) Description The BIOS configuration settings are retained at system boot. The BIOS configuration settings are cleared at system boot. PWRD_EN (default) 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. Disabling a forgotten password The software security features of the PowerEdge M640 system 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 came with the product. Steps 1. Turn off the system by using the operating system commands or the CMC. 2. Remove the system from the enclosure to access the jumpers. 3. Move the jumper on the system-board jumper from pins 2 and 3 to pins 1 and 2. 4. Install the system in the enclosure. 5. Turn on the system. When the system is turned on, power indicator turns on to solid green. Allow the system to finish booting. The existing passwords are not disabled (erased) until the system boots with the password jumper on pins 2 and 3. However, before you assign a new system and/or setup password, you must reinstall the password jumper back to pins 1 and 2. Jumpers and connectors 103

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Table 27. System board jumpers and connectors (continued)
Item
Connector
Description
12.
MEZZ1_FAB_C
Mezzanine card connector
13.
MEZZ2_FAB_B
Mezzanine card connector
14
VFLASH
Micro vFlash card connector
15
bNDC
Network Daughter Card (NDC) connector
16
CPU1
Processor 1
17
CPU2
Processor 2
18
BATTERY
System battery connector
System board jumper settings
For information on resetting the password jumper to disable a password, see
Disabling a forgotten password
on page 103.
Table 28. System board jumper settings
Jumper
Setting
Description
NVRAM_CLR
(default)
The BIOS configuration settings are retained at system boot.
The BIOS configuration settings are cleared at system boot.
PWRD_EN
(default)
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.
Disabling a forgotten password
The software security features of the PowerEdge M640 system 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 came with the product.
Steps
1.
Turn off the system by using the operating system commands or the CMC.
2.
Remove the system from the enclosure to access the jumpers.
3.
Move the jumper on the system-board jumper from pins 2 and 3 to pins 1 and 2.
4.
Install the system in the enclosure.
5.
Turn on the system.
When the system is turned on, power indicator turns on to solid green. Allow the system to finish booting.
The existing passwords are not disabled (erased) until the system boots with the password jumper on pins 2 and 3. However, before
you assign a new system and/or setup password, you must reinstall the password jumper back to pins 1 and 2.
Jumpers and connectors
103