Lenovo PC 300PL Installing Options in your PC300PL - 6592 - Page 39

Replacing a Microprocessor

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Replacing a Microprocessor Warning: The presence of 5 V standby power might result in damage to your hardware unless you disconnect the power cord from the wall before opening the computer. Your computer comes with an Intel® microprocessor installed on the system board. It can be either a Pentium® or a Pentium with MMX™ technology. Tip To see which microprocessor is installed in your computer, perform the following procedures: 1. Turn on your computer and start the Configuration/Setup Utility program (see "Starting the Configuration/Setup Utility Program" on page 70). 2. Select System Summary. 3. Look under Processor. The processor will be shown at the top of the list as either Pentium MMX or Pentium. 4. Exit from the Configuration/Setup Utility program. For the latest information on microprocessor upgrades available for your computer, contact your IBM reseller or IBM marketing representative. If you do upgrade the microprocessor, use the instructions that come with the upgrade along with the instructions in this publication. CAUTION: The microprocessor and heat sink will be hot if the computer has been running. To avoid the possibility of a burn, if the computer has been on, let the microprocessor and heat sink cool for 10 minutes before continuing with the procedure. Before you begin Read "Electrical Safety" on page 4 and "Handling Static-Sensitive Devices" on page 5. Read the instructions that come with the new microprocessor. Turn off the computer and lay it on its side. Carefully rotate the feet a quarter turn, so they do not support the weight of the computer while it is on the side. Disconnect all cables attached to the computer and remove the computer cover (see "Disconnecting Cables and Removing the Side Cover" on page 7). Chapter 3. Working with Options on the System Board 25

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Replacing a Microprocessor
Warning:
The presence of 5 V standby power might result in damage to your
hardware unless you disconnect the power cord from the wall before opening the
computer.
Your computer comes with an Intel
microprocessor installed on the system board.
It can be either a Pentium
or a Pentium with MMX
technology.
Tip
To see which microprocessor is installed in your computer, perform the
following procedures:
1.
Turn on your computer and start the Configuration/Setup Utility program
(see “Starting the Configuration/Setup Utility Program” on page
70).
2. Select
System Summary
.
3.
Look under
Processor
.
The processor will be shown at the top of the list as
either Pentium MMX or Pentium.
4.
Exit from the Configuration/Setup Utility program.
For the latest information on microprocessor upgrades available for your computer,
contact your IBM reseller or IBM marketing representative.
If you do upgrade the
microprocessor, use the instructions that come with the upgrade along with the
instructions in this publication.
CAUTION:
The microprocessor and heat sink will be hot if the computer has been running.
To avoid the possibility of a burn, if the computer has been on, let the
microprocessor and heat sink cool for 10 minutes before continuing with the
procedure.
Before you begin
±
Read “Electrical Safety” on page
4 and “Handling Static-Sensitive Devices”
on page
5.
±
Read the instructions that come with the new microprocessor.
±
Turn off the computer and lay it on its side.
Carefully rotate the feet a
quarter turn, so they do not support the weight of the computer while it is
on the side.
±
Disconnect all cables attached to the computer and remove the computer
cover (see “Disconnecting Cables and Removing the Side Cover” on page
7).
Chapter
3.
Working with Options on the System Board
25