Gateway 6400 To add or remove DIMMs:

4Insert the new DIMM into the socket and align the two notches in the DIMM with the two notches in the DIMM socket.

5Gently press the DIMM into the socket until it is firmly seated. Inserting the DIMM automatically locks the socket latches on each end of the DIMM.

6Close the case by following the instructions on page 20.

7Reconnect peripherals, the modem cord, and the power cord, then turn on the system.

To add or remove DIMMs:

1Turn off the system and disconnect the power cord, modem cord (if installed), and all external peripheral devices.

2Remove the left side cover panel. (See “Removing the side cover” on page 18 and “Preventing static electricity discharge” on page 15.)

3If you are removing a DIMM, pull open the socket latches on each side of the DIMM socket, then lift the DIMM out of the socket. Store the DIMM in an antistatic container.

38Replacing and Adding System Components