Installing An Overdrive Processor; Installing The Upgrade - NEC POWERMATE PRO150 Manual

Installing an OverDrive
This section tells how to install an OverDrive processor upgrade in your
system. The OverDrive processor comes with a heat sink and fan mounted
on top.

Installing the Upgrade

Note
If the system contains several add-in boards and
peripherals, it may be easier to access the CPU if you
remove the power supply. The steps for removing the
power supply can be found in Chapter 4.
To install the upgrade, do the following:
1. Observe the precautions in "Before You Begin." We recommend you
take the following steps to reduce the risk of electronic discharge
damage to the processor and system board components:
Touch the metal chassis before touching the processor or system
board. Keep part of your body in contact with the metal chassis to
dissipate the static charge while handling the processor.
Avoid moving around needlessly.
2. Turn off all peripheral devices connected to the system, and turn off the
system.
!
WARNING
The microprocessor and heat sink will be hot if the
system has been running. To avoid the possibility of a
burn, if the system has been running let the processor and
heat sink cool for 10 minutes before continuing with this
procedure.
3. Figure 5-1 shows the location of the processor socket. You must first
remove the two clamps over the heat sink and CPU. Insert a small flat-
bladed screwdriver into the slot on the end of each clamp. Release the
clamp by pushing outward on the blade of the screwdriver as shown in
Figure 5-3. As you move the clamp away from the socket, ease the
clamp up and away from the processor and heat sink. When you
remove the clamps, the heat sink will slide off the CPU.
5-10
Processor
®
Installing and Configuring System Board Options