Dell POWER EDGE 2900, Hardware Owner'S Manual

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Jumpers and Connectors
Figure 6-4. 1x2 SAS Backplane Connectors
Disabling a Forgotten Password
The password jumper on the system board enables the system password features or disables them and clears
any password(s) currently in use.
CAUTION:
Only trained service technicians are authorized to remove the system cover and access any of the
components inside the system. See your Product Information Guide for complete information about safety
precautions, working inside the computer, and protecting against electrostatic discharge.
1
Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
2
Remove the bezel, if attached. See "Removing the Bezel" on page 50.
3
Open the system. See "Opening the System" on page 53.
4
Note the cable connections on the SAS daughter card, and then disconnect the cables from the storage
daughter card and extend the cables away from the center fan bracket.
5
Remove the fans from the center fan bracket. See "Removing and Installing a Fan" on page 65.
6
Remove the center fan bracket. See "Removing the Center Fan Bracket" on page 81.
7
Remove the password jumper plug.
See Figure 6-1 to locate the password jumper on the system board.
8
Replace the center fan bracket (see "Replacing the Center Fan Bracket" on page 81) and replace the
fans in the bracket.
9
Reconnect the storage daughter card cables.
1 power connector 2 SAS_B_IN connector 3 SAS_B_OUT connector
1
2
3