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contract with Lenovo Group Limited, if any, or the standard terms of this commercial license, or if the agency is
unable to accept this Program under these terms, then we provide this Program under the provisions set forth in
Commercial Computer Software–Restricted Rights at FAR 52.227-19, when applicable, or under Rights in
Data-General, FAR 52.227.14 (Alternate III).
Contents
Overview . . . . . . . . . . . . . .v
Safety information for customers . . . . . . .v
Safety information for service personnel . . . . .v
Additional information resources . . . . . . .vi
Tools required . . . . . . . . . . . . .vi
Handling static-sensitive devices . . . . . . .vi
Chapter 1. Locations . . . . . . . . .1
Locating components . . . . . . . . . . .1
Locating controls and connectors on the front of your
computer . . . . . . . . . . . . . . .2
Locating connectors on the rear of your computer . .3
Identifying parts on the system board . . . . . .4
This guide is intended to be used by customers who are replacing Customer
Replaceable Units (CRUs) as well as trained service personnel who are replacing
Field Replacement Units (FRUs). In this guide, CRUs and FRUs will often be
referred to as parts.
Note: Trained servicepersonnelshouldrefertotheHardware MaintenanceManual
(HMM) for parts ordering information.
This guide does not include procedures for all parts. It is expected that cables,
switches, and certain mechanical parts can be replaced by trained service personnel
without the need for step-by-step procedures.
Note: Use only the parts provided by Lenovo™.
This guide contains instructions for replacing the following parts:
v Power supply
v System board
v Microprocessor
v Hard disk drive
v Optical drive
v Diskette drive
v Memory modules
v PCI adapter
v Fan assembly
v Internal speaker
v Keyboard
v Mouse
Safety information for customers
Do not open your computer or attempt any repair before reading the “Important
safety information” in the Safety and Warranty Guide that was included with your
computer. If you no longer have this copy of the Safety and Warranty Guide, you
can obtain one online from the Support Web site at http://www.lenovo.com/
support.
Safety information for service personnel
Do not attempt any repair before reading the “Important safety information” in the
HardwareMaintenanceManual (HMM) forthecomputer.You canfindtheHMM on
the Support Web site at http://www.lenovo.com/support.
To replace some parts in your computer, you might need a flat-blade or Phillips
screwdriver. Additional tools might be needed for certain parts.
Handling static-sensitive devices
Static electricity, although harmless to you, can seriously damage computer
components and parts.
When you are replacing a part, do not open the static-protective package
containing the new part until the defective part has been removed from the
computer and you are ready to install the new part.
When you handle parts and other computer components, take these precautions to
avoid static-electricity damage:
v Limit yourmovement.Movementcancausestaticelectricitytobuilduparound
you.
v Always handlepartsandothercomputercomponentscarefully.Handle
adapters, memory modules, system boards, and microprocessors by the edges.
Never touch any exposed circuitry.
v Prevent others from touching the parts and other computer components.
v Before you replace a new part, touch the static-protective package containing the
part to a metal expansion-slot cover or other unpainted metal surface on the
computer for at least two seconds. This reduces static electricity in the package
and your body.
v When possible,removethenewpartfromthestatic-protectivepackaging,and
install it directly in the computer without setting the part down. When this is
not possible, place the static-protective package that the part came in on a
smooth, level surface and place the part on it.
v Do notplacethepartonthecomputercoverorothermetalsurface.
vi HardwareReplacementGuide
Chapter 1. Locations
This chapter provides illustrations to help locate the various connectors, controls,
and components of the computer. To open the computer cover, see “Opening the
cover” on page 5.
Locating components
The following illustration will help you locate the various components in your
computer.
1 Diskette drive lock 7 Internal speaker
2 Microprocessor and heat sink 8 Harddisk drive
3 Memory connectors (2) 9 Optical drive (such as a CD or
Do not open your computer or attempt any repair before reading the “Important safety
information” in the Safety and Warranty Guide that was included with your computer or in
the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Safety andWarrantyGuide or theHMM, gototheSupportWeb siteathttp://www.lenovo.com/
support.
Note: Use only parts provided by Lenovo.
Opening the cover
Turn off the computer and wait 3 to 5 minutes to let the computer cool
before opening the computer cover.
operating system, turn off all attached devices and the computer.
input/output (I/O) cables, and any other cables that are connected to the
computer. See “Locating controls and connectors on the front of your
computer” on page 2 and “Locating connectors on the rear of your computer”
on page 3.
Do not open your computer or attempt any repair before reading the “Important safety
information” in the Safety and Warranty Guide that was included with your computer or in
the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Safety andWarrantyGuide or theHMM, gototheSupportWeb siteathttp://www.lenovo.com/
support.
To replace the power supply assembly, do the following: