NEC PowerMate CT manual Removing the Processor

Processor

The system board has a Socket 370 for mounting a Celeron or Pentium III processor.

Incorrect installation of the processor and heat sink can damage the processor, system board, or both. Carefully follow the installation instructions provided with the upgrade processor and the procedures in the following sections.

Ensure that you have the correct heat sink for the processor being installed. Do not use the heat sink from the removed processor.

To remove the processor from the socket, see “Removing the Processor.” To install the upgrade processor, see “Installing an Upgrade Processor.”

Removing the Processor

Remove the processor from its socket on the system board as follows.

Before handling components, reduce static discharge by touching the chassis.

1.Remove the cover (see “Removing the Cover” earlier in this section).

2.Locate the processor socket on the system board (see the figure “Locating the RIMM and Processor Sockets” earlier in this section).

If the system was just running, the processor and heat sink on the system board are hot. To avoid a burn, let the components cool before continuing.

3.Tag and unplug the cooling fan cable from its connector (CPU Fan) on the system board.

4.Remove the fan, heat sink, and retention clip from the processor as follows (see the following figure).

!Simultaneously press down on the flange on the end of the retention clip while carefully pulling out the end to unhook it from the tab on the processor socket.

!Unhook the retention clip from the tab on the opposite side of the processor socket.

!Remove the fan, heat sink, and retention clip from the processor.

5.Remove the processor as follows.

!Pull out on the processor socket lock lever just enough to release the lever from the socket, then pivot the lever up to release the processor.

!Carefully lift up on the processor and remove it from the socket. Store the processor in a static-free bag.

6.Install the upgrade processor (see “Installing the Upgrade Processor” in the next section).

3-16 Disassembly and Reassembly