3Turn off the server, disconnect the power cord and all external peripheral devices.

4Open the case by following the instructions on page 18. (See “Preventing static electricity discharge” on page 17.)

5Locate the battery on the system board (see “System board” on page 6). The battery is circular and has the positive pole mark (+) on the top.

6Using a small, flat-bladed screwdriver, carefully remove the battery from its socket on the system board.

7Press the new battery in the socket with the positive pole up. Be sure you have pressed the battery down far enough for it to contact the base of the socket (it should snap into place).

8Close the case, as described in “Closing the case” on page 20.

9Reconnect the peripherals and the power cord, then turn on the system.

10If the CMOS data is not correct, change the information in the BIOS Setup utility using the data you recorded in Step 2.

Troubleshooting the battery installation

If you have problems after installing the new battery, try each of the items listed below, restarting the server after each try.

■Turn off the server and make sure that all exterior cables are attached and secured to the correct connectors.

■Make sure that all power switches are on. If the server is plugged into a power strip or surge protector, make sure it is turned on also.

■Enter the BIOS Setup utility and compare the settings on the screen with your notes or the system hardware manuals. Correct any discrepancies.

44Replacing and Adding Internal Devices