Ideacentre All-In-One 910 Hardware Maintenance Manual: Machine Types: F0C2 (AIO 910-27ISH / Energy Star)
Ideacentre All-In-One 910 Hardware Maintenance Manual: Machine Types: F0C2 (AIO 910-27ISH / Energy Star)
LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software are delivered pursuant a General Services
Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No.
GS-35F-05925
Contents
The description of the TV-tuner card in this manual applies only to computers with a TV-tuner card installed.
It does not apply to computers without a TV-tuner card.
Veuillez lire toutes les consignes de type DANGER et ATTENTION du présent document avant d’exécuter
les instructions.
Lesen Sie unbedingt alle Hinweise vom Typ “ACHTUNG” oder “VORSICHT” in dieser Dokumentation, bevor
Sie irgendwelche Vorgänge durchführen
Leggere le istruzioni introdotte da ATTENZIONE e PERICOLO presenti nel manuale prima di eseguire una
qualsiasi delle istruzioni
Certifique-se de ler todas as instruções de cuidado e perigo neste manual antes de executar qualquer
uma das instruções
Es importante que lea todas las declaraciones de precaución y de peligro de este manual antes de seguir
las instrucciones.
General safety
Follow these rules to ensure general safety:
• Keep the areas around the computer clear and clean during and after maintenance.
• When lifting any heavy object:
    1. Ensure you can stand safely without slipping.
    2. Distribute the weight of the object equally across both feet.
    3. Lift slowly. Never move suddenly or twist when you attempt to lift.
    4. Lift by standing or by pushing up with your leg muscles; this action removes the strain from the
       muscles in your back.
       Do not attempt to lift any objects that weigh more than 16 kg (35 lb) or objects that you think are
       too heavy for you.
• Do not perform any action that would create a hazard for the customer, or would make the computer
  unsafe.
• Before you start the computer, ensure that other service representatives and customer personnel are not
  in a position that would create a hazard for them.
• Place removed covers and other parts in a safe place, away from all personnel, while you are servicing the
  computer.
• Keep your tool case away from areas that people may walk through to ensure no-one trips over it.
• Do not wear loose clothing that can be trapped in the moving parts of a machine. Ensure that your sleeves
  are fastened or rolled up above your elbows. If your hair is long, tie or fasten it back.
• Insert the ends of your necktie or scarf inside clothing or fasten it with a non-conductive clip,
  approximately 8 centimeters (3 inches) from the end.
• Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your clothing.
  Remember: Metal objects are good electrical conductors.
• Wear safety glasses when you are: hammering, drilling soldering, cutting wire, attaching springs, using
  solvents, or working in any other conditions that might be hazardous to your eyes.
• After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device
  that is worn or defective.
• Reattach all covers correctly before returning the computer to the customer.
Electrical safety
CAUTION:
Electrical current from power, telephone, and communication cables can be hazardous. To avoid
personal injury or equipment damage, disconnect any attached power cords, telecommunication
cables, network cables, and modem cables before you open the computer covers, unless instructed
otherwise in the installation and configuration procedures.
Important: Use only approved tools and test equipment. Some hand tools have handles covered with a soft
material that does not insulate you when working with live electrical currents. Many customers have rubber
floor mats near their equipment that contain small conductive fibers to decrease electrostatic discharge.
• Find the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet. If an electrical
  accident occurs, you can then operate the switch or unplug the power cord quickly.
• Do not work alone under hazardous conditions or near equipment that has hazardous voltages.
• Disconnect all power before:
    – Performing a mechanical inspection
    – Working near power supplies
    – Removing or installing Field Replaceable Units (FRUs)
• Before you start to work on the computer, unplug the power cord. If you cannot unplug it, ask the
  customer to power-off the electrical outlet that supplies power to the machine and to lock the electrical
  outlet in the off position.
• If you need to work on a computer that has exposed electrical circuits, observe the following precautions:
    – Ensure that another person, familiar with the power-off controls, is near you.
      Remember: Another person must be there to switch off the power, if necessary.
    – Use only one hand when working with powered-on electrical equipment; keep the other hand in your
      pocket or behind your back.
      Remember: There must be a complete circuit to cause electrical shock. By observing the above rule,
      you may prevent a current from passing through your body.
    – When using a tester, set the controls correctly and use the approved probe leads and accessories for
      that tester.
    – Stand on suitable rubber mats (obtained locally, if necessary) to insulate you from grounds such as
      metal floor strips and machine frames.
    Observe the special safety precautions when you work with very high voltages; these instructions are in
    the safety sections of the maintenance information. Use extreme care when measuring high voltages.
• Regularly inspect and maintain your electrical hand tools to ensure they are safe to use.
• Do not use worn or broken tools and testers.
• Never assume that power has been disconnected from a circuit. First, check that it has been powered off.
• Always look carefully for possible hazards in your work area. Examples of these hazards are wet floors,
  non-grounded power extension cables, conditions that may cause or allow power surges, and missing
  safety grounds.
• Do not touch live electrical circuits with the reflective surface of a plastic dental mirror. This surface is
  conductive, and touching a live circuit can cause personal injury and damage to the computer.
• Do not service the following parts with the power on when they are removed from their normal operating
  positions in a computer:
    – Power supply units
    – Pumps
    – Blowers and fans
    – Motor generators
    and similar units. (This practice ensures correct grounding of the units.)
• If an electrical accident occurs:
    – Use caution; do not become a victim yourself.
If any hazards are present, you must determine how serious the apparent hazard could be and whether you
can continue without first resolving the problem.
Consider the following items and the safety hazards they present:
• Electrical hazards, especially primary power (primary voltage on the frame can cause serious or fatal
  electrical shock).
• Explosive hazards, such as a damaged CRT face or bulging capacitor
• Mechanical hazards, such as loose or missing hardware
The guide consists of a series of steps presented as a checklist. Begin the checks with the power off, and
the power cord disconnected.
Checklist:
 1. Check exterior covers for damage (loose, broken, or sharp edges).
 2. Power-off the computer. Disconnect the power cord.
 3. Check the power cord for:
    a. A third-wire ground connector in good condition. Use a meter to measure third-wire ground
       continuity for 0.1 ohm or less between the external ground pin and frame ground.
    b. The power cord should be the appropriate type as specified in the parts listings.
    c. Insulation must not be frayed or worn.
 4. Remove the cover.
 5. Check for any obvious alterations. Use good judgment as to the safety of any alterations.
 6. Check inside the unit for any obvious hazards, such as metal filings, contamination, water or other
    liquids, or signs of fire or smoke damage.
 7. Check for worn, frayed, or pinched cables.
 8. Check that the power-supply cover fasteners (screws or rivets) have not been removed or tampered with.
Notes:
 1. Use product-specific ESD procedures when they exceed the requirements noted here.
 2. Make sure that the ESD protective devices you use have been certified (ISO 9000) as fully effective.
    Note: The use of a grounding system is desirable but not required to protect against ESD damage.
    – Attach the ESD ground clip to any frame ground, ground braid, or green-wire ground.
    – Use an ESD common ground or reference point when working on a double-insulated or
      battery-operated system. You can use coax or connector-outside shells on these systems.
    – Use the round ground-prong of the AC plug on AC-operated computers.
Grounding requirements
Electrical grounding of the computer is required for operator safety and correct system function. Proper
grounding of the electrical outlet can be verified by a certified electrician.
Safety notices
The CAUTION and DANGER safety notices in this section are provided in the language of English.
DANGER
CAUTION:
When replacing the lithium battery, use only Part Number 45C1566 or an equivalent type battery
recommended by the manufacturer. If your system has a module containing a lithium battery, replace
it only with the same module type made by the same manufacturer. The battery contains lithium and
can explode if not properly used, handled, or disposed of.
Do not:
• Throw into or immerse in water
• Heat to more than 100°C (212°F)
• Repair or disassemble
CAUTION:
When laser products (such as CD-ROMs, DVD-ROM drives, fiber optic devices, or transmitters) are
installed, note the following:
• Do not remove the covers. Removing the covers of the laser product could result in exposure to
  hazardous laser radiation. There are no serviceable parts inside the device.
• Use of controls or adjustments or performance of procedures other than those specified herein
  might result in hazardous radiation exposure.
DANGER
Some laser products contain an embedded Class 3A or Class 3B laser diode. Note the following:
 These diodes emit radiation when open. Do not stare into the beam, do not view directly with
 optical instruments, and avoid direct exposure to the beam.
CAUTION:
Use safe practices when lifting.
CAUTION:
The power control button on the device and the power switch on the power supply do not turn off
the electrical current supplied to the device. The device also might have more than one power
cord. To remove all electrical current from the device, ensure that all power cords are disconnected
from the power source.
2
1
CAUTION:
Do not place any object weighing more than 82 kg (180 lbs.) on top of rack-mounted devices.
Specifications
This section lists the physical specifications for your computer.
Environment
 Air temperature:
    Operating: 10° to 35°C
    Transit: -20° to 55°C
 Humidity:
    Operating: 35% to 80%
    Transit: 20% to 90% (40°C)
    Altitude: 86KPa to 106KPa
 Electrical input:
    Input voltage: 90V-264V(AC)
    Input frequency: 47Hz-63Hz
General error messages appear if a problem or conflict is found by an application, the operating system, or
both. For an explanation of these messages, refer to the information supplied with that software package.
Use the following procedure to help determine the cause of the problem:
 1. If your computer is already on when you start this procedure, shut down the operating system and
    turn off the computer.
 2. Press and hold the F1 key then turn on the computer. When the Lenovo BIOS Setup Utility program is
    displayed, release the F1 key.
Note: If a Power-On Password or an Administrator Password has been set, the Setup Utility program menu
will not be displayed until you type your password. For more information, see “Using passwords.”
You must use the keyboard when using the Lenovo BIOS Setup Utility menu. The keys used to perform
various tasks are displayed on the bottom of each screen.
Using passwords
You can use the Lenovo BIOS Setup Utility program to set passwords to prevent unauthorized persons
from gaining access to your computer and data. See “Starting the Setup Utility program.” The following
types of passwords are available:
• Administrator Password
• Power-On Password
You do not have to set any passwords to use your computer. However, if you decide to set passwords, read
the following sections.
Password considerations
A password can be any combination of letters and numbers up to 16 characters (a-z and 0-9). For security
reasons, it is a good idea to use a strong password that cannot be easily compromised. We suggest that
passwords should follow these rules:
• For a strong password, use 7-16 characters and a mix of letters and numbers.
• Do not use your name or your user name.
• Do not use a common word or a common name.
• Use something significantly different from your previous password.
Setting an Administrator Password deters unauthorized persons from changing configuration settings. You
might want to set an Administrator Password if you are responsible for maintaining the settings of several
computers.
After you set an Administrator Password, a password prompt is displayed every time you access the Lenovo
BIOS Setup Utility program.
If both the Administrator and Power-On Password are set, you can type either password. However, you must
use your Administrator Password to change any configuration settings.
Note: A password can be any combination of letters and numbers up to 16 characters (a-z and 0-9). For
more information, see “Password considerations” on page 13.
 1. Start the Lenovo BIOS Setup Utility program (see “Starting the Lenovo BIOS Setup Utility program” on
    page 13).
 2. From the Security menu, select Set Administrator Password and press the Enter key.
 3. The password dialog box will be displayed. Type the password then press the Enter key.
 4. Re-type the password to confirm, then press the Enter key. If you typed the password correctly,
    the password will be installed.
Power-On Password
When a Power-On Password is set, you cannot start the Lenovo BIOS Setup Utility program until a valid
password is typed from the keyboard.
Note: A password can be any combination of letters and numbers up to 16 characters (a-z and 0-9).
     Notes:
     a. If you do not want to save the settings, select Discard changes and Exit from the menu.
     b. Select IDE/AHCI Mode: Device driver support is required for ACHI. Depending on how the hard disk
        image was installed, changing this setting may prevent the system from booting.
Note: Not all CDs, DVDs or hard disk drives are bootable.
 1. Turn off your computer.
 2. Press and hold the F12 key then turn on the computer. When the Startup Device Menu appears,
    release the F12 key.
     Note: If the Startup Device Menu does not display using these steps, repeatedly press and release the
     F12 key rather than keeping it pressed when turning on the computer.
 3. Use ↑ and ↓ arrows to select the desired startup device from the Startup Device Menu and press
    the Enter key to begin.
     Note: Selecting a startup device from the Startup Device Menu does not permanently change the
     startup sequence.
To view or permanently change the configured startup device sequence, do the following:
 1. Start the Lenovo BIOS Setup Utility program (see “Starting the Lenovo BIOS Setup Utility program” on
    page 13).
 2. From the Lenovo BIOS Setup Utility program main menu, select the Startup option.
 3. Press the Enter key, and select the devices for the Primary Boot Sequence. Read the information
    displayed on the right side of the screen.
 4. Use - and ¯ arrows to select a device. Use the <+> or <-> keys to move a device up or down. Use the
    <×> key to exclude the device from or include the device in the boot sequence.
 5. Return to the Lenovo BIOS Setup Utility program menu and select the Exit option.
 6. Select Save changes and Exit from the menu.
Notes:
Notes:
• If you have both an error message and an incorrect audio response, diagnose the error message first.
• If you cannot run the diagnostic tests or you get a diagnostic error code when running a test but did
  receive a POST error message, diagnose the POST error message first.
• If you did not receive any error message look for a description of your error symptoms in the first part of
  this index.
 Error                                                    FRU/Action
 The startup drive is not included in the boot sequence   Check the configuration and ensure the startup drive is
 configuration.                                           in the boot sequence.
 No operating system is installed on the boot drive.      Install an operating system on the boot drive.
 The boot sector on the startup drive is corrupted.       The drive must be formatted. Do the following:
                                                           1. Attempt to back up the data on the failing hard disk
                                                              drive.
                                                           2. Use the operating system to format the hard disk
                                                              drive.
 The drive is defective.                                  Replace the hard disk drive.
 Check/Verify                                             FRU/Action
 Check that the following are properly installed:         Reseat connectors
 • Power Cord
 • On/Off Switch connector
 • System Board Power Supply connectors
 • Microprocessor connections
 Check the power cord.                                    Power Cord
 Check the power-on switch.                               Power-on Switch
Undetermined problems
 1. Power-off the computer.
 2. Remove or disconnect the following components (if connected or installed) one at a time.
     a. External devices (modem, printer, or mouse)
     b. Extended video memory
     c. External Cache
     d. External Cache RAM
     e. Hard disk drive
     f. Disk drive
 3. Power-on the computer to re-test the system.
 4. Repeat steps 1 through 3 until you find the failing device or component.
If all devices and components have been removed and the problem continues, replace the system board.
Font view
The following illustration shows the location of controls and components on the front of the computer.
Attention: Be careful not to block any air vents on the computer. Blocked air vents can cause overheating.
2 13
                                                                                        14
                          4
                                                                                        15
                          5
                                                                                        16
17
                          6
                                                                                        18
                          8
                                                                                        19
                          9
                          10
                                                                                        20
11
                                                                                        21
                          12
1 10 11
                                                                                         3
                        5
6 7 8
12
General information
Pre-disassembly instructions
Before starting the disassembly procedure, make sure that you do the following:
 1. Turn off the power to the system and all peripherals.
 2. Unplug all power and signal cables from the computer.
 3. Place the system on a flat, stable surface.
Step 1.   Remove any media (disks, CDs, or memory cards) from the drives, shut down the computer, and
          turn off all attached devices.
Step 2.   Unplug all power cords from electrical outlets.
Step 3.   Locate the connector for the keyboard. Refer to “Side view of the computer” and “Rear view of
          the computer”.
Step 4.   Disconnect the defective keyboard cable from the computer and connect the new keyboard cable
          to the same connector.
Step 5.   The mouse can be replaced using the same method.
Step 1.   Remove any media (disks, CDs, or memory cards) from the drives, shut down the operating
          system, and turn off the computer and all attached devices.
Step 2.   Disconnect the adapter from the connector on the computer , then unplug the adapter from
          electrical outlet.
Step 1.   Remove any media (disks, CDs, DVDs or memory cards) from the drives, shut down the operating
          system, and turn off the computer and all attached devices.
Step 2.   Unplug all power cords from electrical outlets.
Step 3.   Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)
          cables, and any other cables that are connected to the computer. Refer to “Left and right view”
          and “Rear view” for help with locating the various connectors.
Step 4.   Remove one screw that secure the hard disk drive cover to the base stand a , and then remove
          the HDD cover b .
Step 5.   Remove the 4 screws that secure the hard disk drive bracket to the base stand c .
Step 6.   Disconnect the data and power cable from the hard disk drive d
Step 7.   Remove the 4 screws that secure the hard disk drive to the bracket e . Slide the hard disk drive
          out of the bay as shown f .
Step 1.   Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating
          system, and turn off the computer and all attached devices.
Step 2.   Unplug all power cords from electrical outlets.
Step 6.   Working around the edge in an anti-clockwise direction, use your fingers to prise up the rear cover.
          The rear cover is pinned into place, use short, sharp movements to prise it up.
Step 7.   Press down the hinge and slide out the rear cover.
Step 8.   To reattach the rear cover:
          a.   Raise the hinge, line up the rear cover with the LED panel and slide it back into position.
          b.   Press the edge of rear cover to lock the cover to the LED panel with the pins.
          c.   Slide the rear deco back into position.
Step 1.   Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating
          system, and turn off the computer and all attached devices.
Step 2.   Unplug all power cords from electrical outlets.
Step 3.   Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)
          cables, and any other cables that are connected to the computer. Refer to “Left and right view”
          and “Rear view” for help with locating the various connectors.
Step 1.   Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating
          system, and turn off the computer and all attached devices.
Step 2.   Unplug all power cords from electrical outlets.
Step 3.   Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)
          cables, and any other cables that are connected to the computer. Refer to “Left and right view”
          and “Rear view” for help with locating the various connectors.
Step 4.   Remove the rear cover. Refer to “Removing the rear cover”.
Step 5.   Disconnect the speaker cable from the connectors on the scalar board, and then lift up the two
          speakers to remove them.
Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo
recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from scratches
or other damage.
To replace the Wi-Fi card:
Step 1.   Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating
          system, and turn off the computer and all attached devices.
Step 2.   Unplug all power cords from electrical outlets.
Step 3.   Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)
          cables, and any other cables that are connected to the computer. Refer to “Left and right view”
          and “Rear view” for help with locating the various connectors.
Step 4.   Remove the rear cover. Refer to “Removing the rear cover”.
Step 1.   Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating
          system, and turn off the computer and all attached devices.
Step 2.   Unplug all power cords from electrical outlets.
Step 3.   Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)
          cables, and any other cables that are connected to the computer. Refer to “Left and right view”
          and “Rear view” for help with locating the various connectors.
Step 4.   Remove the rear cover. Refer to “Removing the rear cover”.
Step 5.   Remove the 4 screws that secure the scalar board to the LED panel bracket.
Step 1.   Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating
          system, and turn off the computer and all attached devices.
Step 2.   Unplug all power cords from electrical outlets.
Step 3.   Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)
          cables, and any other cables that are connected to the computer. Refer to “Left and right view”
          and “Rear view” for help with locating the various connectors.
Step 4.   Remove the rear cover. Refer to “Removing the rear cover”.
Step 5.   Remove the two screws that secure camera with bracket to the front bezel.
Step 6.   Disconnect the camera data cable from the connector on the camera.
Step 7.   To install the new camera:
          a.   Connect the data cable to the new camera.
          b.   Place the new camera with bracket into position, secure the camera bracket to the front
               bezel with the two screws.
Step 8.   Reattach the rear cover.
Step 1.   Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating
          system, and turn off the computer and all attached devices.
Step 2.   Unplug all power cords from electrical outlets.
Step 3.   Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)
          cables, and any other cables that are connected to the computer. Refer to “Left and right view”
          and “Rear view” for help with locating the various connectors.
Step 4.   Remove the rear cover. Refer to “Removing the rear cover”.
Step 5.   Disconnect the data cable from the power switch board 1 .
Step 6.   Push the locking pin outward to release the power switch board 2 , then lift up the power switch
          board to remove it.
Step 1.   Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating
          system, and turn off the computer and all attached devices.
Step 2.   Unplug all power cords from electrical outlets.
Step 3.   Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)
          cables, and any other cables that are connected to the computer. Refer to “Left and right view”
          and “Rear view” for help with locating the various connectors.
Step 4.   Remove the rear cover. Refer to “Removing the rear cover”.
Step 5.   Disconnect the microphone data cable from the connector on the microphone.
Step 6.   Push the locking pin outward to release the microphone, then lift up the microphone to remove it.
Step 1.   Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating
          system, and turn off the computer and all attached devices.
Step 2.   Unplug all power cords from electrical outlets.
Step 3.   Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)
          cables, and any other cables that are connected to the computer. Refer to “Left and right view”
          and “Rear view” for help with locating the various connectors.
Step 4.   Place the computer face-down on a soft flat surface, then remove the 8 screws that secure the
          base bottom cover to the base.
Step 5. Return the computer to an upright position, then lift the base top cover up and slide it out as shown.
Step 1.   Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating
          system, and turn off the computer and all attached devices.
Step 2.   Unplug all power cords from electrical outlets.
Step 3.   Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)
          cables, and any other cables that are connected to the computer. Refer to “Left and right view”
          and “Rear view” for help with locating the various connectors.
Step 4.   Remove the base cover. Refer to “Removing the base cover”.
Step 5.   Remove the 6 screws that secure the hinge to the stand base cover 1 , and disconnect the touch
          and LED panel cables from the connectors on the motherboard 2 , and then raise the hinge to
          remove it from the base cover. 3
                                        3
                                                                   2
1 1
Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo
recommends that you use a blanket, towel, or other soft cloth to protect the touch screen from scratches
or other damage.
Step 1.   Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating
          system, and turn off the computer and all attached devices.
Step 2.   Unplug all power cords from electrical outlets.
1 1
Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo
recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from scratches
or other damage.
To replace the system fan
Step 1.   Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating
          system, and turn off the computer and all attached devices.
Step 2.   Unplug all power cords from electrical outlets.
Step 3.   Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)
          cables, and any other cables that are connected to the computer. Refer to “Left and right view”
          and “Rear view” for help with locating the various connectors.
Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo
recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from scratches
or other damage.
To replace the heat-sink:
Step 1.   Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating
          system, and turn off the computer and all attached devices.
Step 2.   Unplug all power cords from electrical outlets.
Step 3.   Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)
          cables, and any other cables that are connected to the computer. Refer to “Left and right view”
          and “Rear view” for help with locating the various connectors.
Step 4.   Remove the base cover. Refer to “Removing the base cover”.
           Attention: Place the heat-sink upside down on a flat surface to prevent thermal grease from contaminating
           other components.
Attention: Use an alcohol pad to wipe the thermal grease off the CPU.
Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo
recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from scratches
or other damage.
To replace the system fan
Step 1.   Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating
          system, and turn off the computer and all attached devices.
Step 2.   Unplug all power cords from electrical outlets.
                                                                                2
                                                                       3
                                                                                      2
Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo
recommends that you use a blanket, towel, or other soft cloth to protect the computer screen from scratches
or other damage.
To replace the CPU
Step 1.   Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating
          system, and turn off the computer and all attached devices.
           Attention: Do not touch the gold contacts on the bottom of the microprocessor. When handling the
           microprocessor, touch only the sides.
           Note: Do not drop anything onto the microprocessor socket while it is exposed. The socket pins must
           be kept as clean as possible.
Step 9.   Holding the sides of the microprocessor with your fingers, position the microprocessor so that the
          notches on the microprocessor are aligned with the tabs in the microprocessor socket.
           Important: To avoid damaging the microprocessor contacts, keep the microprocessor completely level
           while installing it into the socket.
Step 10. Lower the microprocessor straight down into its socket on the motherboard.
Step 11. To secure the microprocessor in the socket, close the microprocessor retainer and lock it into
         position with the small handle.
Step 12. Use a thermal grease syringe to place 5 drops of grease on the top of the microprocessor. Each
         drop of grease should be 0.03ml (3 tick marks on the grease syringe).
Step 13. Reattach the heat-sink and base cover.
Step 1.   Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operating
          system, and turn off the computer and all attached devices.
Step 2.   Unplug all power cords from electrical outlets.
Step 3.   Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)
          cables, and any other cables that are connected to the computer. Refer to “Left and right view”
          and “Rear view” for help with locating the various connectors.
Step 4.   Remove the base cover. Refer to “Removing the base cover”.
Step 5.   Remove the hinge. Refer to “Removing the hinge”.
Step 6.   Remove the memory modules. Refer to “Replacing a memory module”.
Step 7.   Remove the heat-sink. Refer to “Replacing the heat-sink”.
Step 8.   Remove all the cables from the motherboard.
Step 9.   Remove the two screws that secure the motherboard to the base bottom cover and lift the
          motherboard up to remove it.
Power management
Power management reduces the power consumption of certain components of the computer such as the
system power supply, processor, hard disk drives, and some monitors.
As this computer has an ACPI BIOS system, the operating system is allowed to control the power
management features of the computer and the settings for Advanced Power Management (APM) BIOS mode
is ignored. Not all operating systems support ACPI BIOS mode.
The Automatic Power-On features within the Power Management menu allow you to enable and disable
features that turn on the computer automatically.
• Wake Up on Alarm: You can specify a date and time at which the computer will be turned on automatically.
  This can be either a single event , a daily event or a weekly event.
• Wake Up on LAN: This feature allows LAN adapter card to wake the System.