Gateway E3400 To remove the heat sink:

Replacing or adding a processor

Your system board currently supports the Intel® Pentium III (FC-PGA 370) i256K processor. See the Gateway Web site at www.gatewayatwork.com for updates on processor speeds supported by your system.

Important A heat sink must be installed on the Pentium III processor.

When replacing a processor, order a Pentium III processor upgrade kit. The kit includes the Pentium III processor, a heat sink, and a disposable electrostatic wrist strap.

To replace the processor you must perform the following tasks:

■Remove the heat sink

■Remove the processor

■Install the new processor

■Replace the heat sink

To remove the heat sink:

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

2Open the case (see “Opening the case” on page 19), observing the “Static electricity precautions” on page 17.

3Remove the heat sink by disconnecting the fan cable from the fan connector on the system board. (See “System board” on page 8 for the location of the fan connector.)

Replacing or adding a processor 59