Dell PowerEdge R760XA Installation and Service Manual - Page 190

System board jumper settings, Disabling a forgotten password

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Table 83. System board jumpers and connectors (continued) Item Connector 44. B8, B16, B2, B10, B6, B14, B4, B12 45. IO_RISER4 (CPU2) 46. PSU2_SIG 47. SL9_CPU2_PA5 Description DIMMs for CPU 2 channels H, G, F, E Riser 4 requires Processor 2 PUCK sideband signal PCIe connector 9 System board jumper settings For information about resetting the password jumper to disable a password, see the Disabling a forgotten password section. Table 84. System board jumper settings Jumper PWRD_EN Setting Description The BIOS password feature is enabled. NVRAM_CLR The BIOS password feature is disabled. The BIOS password is now disabled and you are not allowed to set a new password. The BIOS configuration settings are retained at system boot. The BIOS configuration settings are cleared at system boot. CAUTION: You should be cautious when changing the BIOS settings. The BIOS interface is designed for advanced users. Any changes in the setting might prevent your system from starting correctly and may even result in data loss. Disabling a 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. Power off the system and all attached peripherals. Disconnect the system from the electrical outlet, and disconnect the peripherals. 2. Remove the system cover. 3. Move the jumper on the system board from pins 2 and 4 to pins 4 and 6. 4. Replace the system cover. NOTE: 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. NOTE: If you assign a new system and/or setup password with the jumper on pins 4 and 6, the system disables the new password(s) the next time it boots. 5. Reconnect the peripherals and connect the system to the electrical outlet, and then power on the system. 190 Jumpers and connectors

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Table 83. System board jumpers and connectors (continued)
Item
Connector
Description
44.
B8, B16, B2, B10, B6, B14, B4, B12
DIMMs for CPU 2 channels H, G, F, E
45.
IO_RISER4 (CPU2)
Riser 4 requires Processor 2
46.
PSU2_SIG
PUCK sideband signal
47.
SL9_CPU2_PA5
PCIe connector 9
System board jumper settings
For information about resetting the password jumper to disable a password, see the
Disabling a forgotten password
section.
Table 84. System board jumper settings
Jumper
Setting
Description
PWRD_EN
The BIOS password feature is enabled.
The BIOS password feature is disabled. The BIOS password is
now disabled and you are not allowed to set a new password.
NVRAM_CLR
The BIOS configuration settings are retained at system boot.
The BIOS configuration settings are cleared at system boot.
CAUTION:
You should be cautious when changing the BIOS settings. The BIOS interface is designed for
advanced users. Any changes in the setting might prevent your system from starting correctly and may even
result in data loss.
Disabling a 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.
Power off the system and all attached peripherals. Disconnect the system from the electrical outlet, and disconnect the
peripherals.
2.
Remove the system cover
.
3.
Move the jumper on the system board from pins 2 and 4 to pins 4 and 6.
4.
Replace the system cover
.
NOTE:
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.
NOTE:
If you assign a new system and/or setup password with the jumper on pins 4 and 6, the system disables the new
password(s) the next time it boots.
5.
Reconnect the peripherals and connect the system to the electrical outlet, and then power on the system.
190
Jumpers and connectors