Dell PowerEdge C6420 EMC Installation and Service Manual - Page 127

Disabling forgotten password

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Table 40. System Board Connectors and Description (continued) Item Connector 10 Batt 11 PWDCLR 12 NVRAMCLR 13 PCIe Slot 3 14 TPM 15 PCIe Slot 1 16 PCIe Slot 2 17 SATA_A 18 DIMM sockets (4) 19 CPU 1 20 DIMM sockets (4) 21 CPU 2 Description System battery Password clear jumper NVRAM clear jumper Slot 3: x8 PCIe Gen3 from CPU 1 TPM connector Slot 1: x8 PCIe Gen3 from CPU 1 Slot 2: x8 PCIe Gen3 from CPU 1 SATA cable connector DIMM A7, DIMM A1, DIMM A2, DIMM A3 CPU socket 1 DIMM B7, DIMM B1, DIMM B2, DIMM B3 CPU socket 2 (with a dust cover) 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 127

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Table 40. System Board Connectors and Description (continued)
Item
Connector
Description
10
Batt
System battery
11
PWDCLR
Password clear jumper
12
NVRAMCLR
NVRAM clear jumper
13
PCIe Slot 3
Slot 3: x8 PCIe Gen3 from CPU 1
14
TPM
TPM connector
15
PCIe Slot 1
Slot 1: x8 PCIe Gen3 from CPU 1
16
PCIe Slot 2
Slot 2: x8 PCIe Gen3 from CPU 1
17
SATA_A
SATA cable connector
18
DIMM sockets (4)
DIMM A7, DIMM A1, DIMM A2, DIMM A3
19
CPU 1
CPU socket 1
20
DIMM sockets (4)
DIMM B7, DIMM B1, DIMM B2, DIMM B3
21
CPU 2
CPU socket 2 (with a dust cover)
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
127