Dell PowerEdge R640 EMC PowerEdge R640 Installation and Service Manual - Page 171

System board jumper settings, Disabling forgotten password

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Table 62. System board jumpers and connectors (continued) Item Connector Description 38 A6, A12, A5, A11, A4, A10, A7, A1, A8, A2, A9, A3 Memory module sockets System board jumper settings For information on resetting the password jumper to disable a password, see the Disabling a forgotten password section. Disabling 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, 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 2 and 4 to pins 4 and 6. 4. Install the system cover. 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 system to its electrical outlet and power on the system, including any attached peripherals. 6. Power off the system, including any attached peripherals, and disconnect the system from the electrical outlet. 7. Remove the system cover. 8. Move the jumper on the system board jumper from pins 4 and 6 to pins 2 and 4. 9. Install the system cover. 10. Reconnect the system to its electrical outlet and power on the system, including any attached peripherals. 11. Assign a new system and/or setup password. Jumpers and connectors 171

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Table 62. System board jumpers and connectors (continued)
Item
Connector
Description
38
A6, A12, A5, A11, A4, A10, A7, A1, A8, A2, A9, A3
Memory module sockets
System board jumper settings
For information on resetting the password jumper to disable a password, see the
Disabling a forgotten password
section.
Disabling 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, 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 2 and 4 to pins 4 and 6.
4.
Install the system cover.
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 system to its electrical outlet and power on the system, including any attached peripherals.
6.
Power off the system, including any attached peripherals, and disconnect the system from the electrical outlet.
7.
Remove the system cover.
8.
Move the jumper on the system board jumper from pins 4 and 6 to pins 2 and 4.
9.
Install the system cover.
10.
Reconnect the system to its electrical outlet and power on the system, including any attached peripherals.
11.
Assign a new system and/or setup password.
Jumpers and connectors
171