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Lenovo ThinkCentre A55 8705 Hardware Replacement Manual
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Lenovo ThinkCentre A55 8705 Hardware Replacement Manual

Lenovo ThinkCentre A55 8705 Hardware Replacement Manual

Lenovo thinkcentre a55 8705: supplementary guide
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Hardware Replacement Guide
Types 9300, 9301, 9636, 9638, 9640
Types 9641, 9642, 9643, 9644, 9645

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Summary of Contents for Lenovo ThinkCentre A55 8705

  • Page 1 Hardware Replacement Guide Types 9300, 9301, 9636, 9638, 9640 Types 9641, 9642, 9643, 9644, 9645...
  • Page 3 Hardware Replacement Guide Types 9300, 9301, 9636, 9638, 9640 Types 9641, 9642, 9643, 9644, 9645...
  • Page 4 RESTRICTED RIGHTS. Use, duplication or disclosure by the Government is subject to the GSA ADP Schedule 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...

  • Page 5: Table Of Contents

    Chapter 2. Replacing hardware ..5 Opening the cover Replacing the power supply assembly . Replacing the system board . © Lenovo 2005, 2007. Portions © IBM Corp. 2005. Replacing the heat sink . Replacing a hard disk drive . Replacing an optical drive Replacing the diskette drive .
  • Page 6 Hardware Replacement Guide...

  • Page 7: Overview

    CRU removal and installation information v CRU removal and installation videos v Publications v Troubleshooting information v Parts information v Downloads and drivers v Links to other useful sources of information © Lenovo 2005, 2007. Portions © IBM Corp. 2005. ™...

  • Page 8: Tools Required

    Support phone list To access this information, point your browser to: http://www.lenovo.com/support Tools required 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.

  • Page 9: Chapter 1. Locations

    Microprocessor and heat sink Memory connectors (2) Battery PCI riser assembly Power supply assembly © Lenovo 2005, 2007. Portions © IBM Corp. 2005. Internal speaker Hard disk drive Optical drive (such as a CD or DVD drive) Optical drive lock...

  • Page 10: Locating Controls And Connectors On The Front Of Your Computer

    Locating controls and connectors on the front of your computer The following illustration shows locations of the controls and connectors on the front of your computer. Note: Not all computer models will have the following controls and connections. Optical drive (some models) Hard disk drive activity indicator Power-on indicator Power button...

  • Page 11: Locating Connectors On The Rear Of Your Computer

    Locating connectors on the rear of your computer The following illustration shows locations of connectors on the rear of your computer. Power cord connector Cable lock latch PCI Express x1 adapter connector PCI adapter connector USB connectors (4) Ethernet connector USB connectors (2) VGA monitor connector Parallel connector...

  • Page 12: Identifying Parts On The System Board

    Identifying parts on the system board The following illustration shows the locations of parts on the system board. Memory connector 1 Memory connector 2 SATA IDE connectors (2) BIOS WP Cover presence switch (Tamper SW) connector PCI riser connector Battery Clear CMOS/Recovery jumper Temperature sensor connector Hardware Replacement Guide...

  • Page 13: Chapter 2. Replacing Hardware

    4. Remove any locking devices, such as a cable lock that secure the computer cover. 5. Press the buttons on the sides of the computer and pivot the cover upward to open the computer as shown. © Lenovo 2005, 2007. Portions © IBM Corp. 2005.

  • Page 14: Replacing The Power Supply Assembly

    Safety and Warranty Guide that was included with your computer. To obtain a copy of the Safety and Warranty Guide, go to the Support Web site at http://www.lenovo.com/support. To replace the power supply assembly, do the following: 1.
  • Page 15 8. Install the new power supply assembly into the chassis so that the screw holes in the power supply assembly align with those in the chassis. Note: Use only the screws provided by Lenovo. 9. Install and tighten the four screws at the rear of the chassis to secure the power supply assembly.

  • Page 16: Replacing The System Board

    Safety and Warranty Guide that was included with your computer. To obtain a copy of the Safety and Warranty Guide, go to the Support Web site at http://www.lenovo.com/support. To replace the system board, do the following: 1. Turn off the computer and allow the computer to cool for one hour.
  • Page 17 4. While holding the rear of the computer chassis down, pull upward on the handle provided to remove the PCI riser assembly and any adapters that are currently installed. 5. Carefully take note of the location of all cable connections on the system board.
  • Page 18 7. Pull upward on the handle 1 to release the system board from the front latch, slide the system board toward the drive bay assembly, and then carefully lift the system board out of the chassis. Note: You might have to tilt the front end of the system board between the diskette drive and the fan assembly to remove it completely from the chassis.
  • Page 19 10. Remove the heat sink from the failing system board by pivoting the lever 1 securing the heat sink until it is fully in the up position. Carefully lift the heat sink off of the failing system board. Note: Place the heat sink on its side on a clean, flat surface so the thermal grease on the bottom of the heat sink does not touch the surface and become contaminated.
  • Page 20 12. Lift the microprocessor straight up and out of the socket. Important Do not touch the gold contacts on the bottom of the microprocessor. When handling the microprocessor, touch only the sides. a. Note the orientation of the notches 1 on the microprocessor. This is important when installing the microprocessor on the new system board.
  • Page 21 15. Lower the microprocessor straight down into the microprocessor socket. 16. Lower the microprocessor retainer 2 and then lower the lever 1 to secure the retainer. Make sure the lever is securely locked into position. Note: There will be a black plastic cover on the microprocessor retainer to protect the socket on the new system board.

  • Page 22: Replacing The Heat Sink

    Safety and Warranty Guide that was included with your computer. To obtain a copy of the Safety and Warranty Guide, go to the Support Web site at http://www.lenovo.com/support. This section provides instructions on how to replace the heat sink.

  • Page 23: Replacing A Hard Disk Drive

    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. To obtain a copy of the Safety and Warranty Guide, go to the Support Web site at http://www.lenovo.com/support. Chapter 2. Replacing hardware...
  • Page 24 This section provides instructions on how to replace the hard disk drive. Important When you receive a new hard disk drive, you also receive a set of Product Recovery CDs. The set of Product Recovery CDs will enable you to restore the contents of the hard disk to the same state as when your computer was originally shipped from the factory.
  • Page 25 5. Pivot the hard disk drive and bracket to the rear, then pull the drive and bracket out of the drive bay by pulling on the blue handle. 6. Remove the failing hard disk drive from the bracket by flexing the bracket. Chapter 2.

  • Page 26: Replacing An Optical Drive

    Safety and Warranty Guide that was included with your computer. To obtain a copy of the Safety and Warranty Guide, go to the Support Web site at http://www.lenovo.com/support. This section provides instructions on how to replace an optical drive.
  • Page 27 2. Pivot the drive bay assembly upward to gain access to the optical drive. 3. Disconnect the signal and power cables from the rear of the optical drive. 4. Slide the optical drive lock 1 to the unlocked position. 5. Open the door at the front of the optical drive and slide it out the front of the computer.

  • Page 28: Replacing The Diskette Drive

    Safety and Warranty Guide that was included with your computer. To obtain a copy of the Safety and Warranty Guide, go to the Support Web site at http://www.lenovo.com/support. This section provides instructions on how to replace the diskette drive.

  • Page 29: Replacing A Memory Module

    Safety and Warranty Guide that was included with your computer. To obtain a copy of the Safety and Warranty Guide, go to the Support Web site at http://www.lenovo.com/support. This section provides instructions on how to replace a memory module.
  • Page 30 2. While holding the rear of the computer chassis down, pull upward on the handle provided to remove the PCI riser assembly and any adapters that are currently installed. 3. Pivot the drive bay assembly upward to gain access to the system board. 4.

  • Page 31: Replacing A Pci Adapter

    Safety and Warranty Guide that was included with your computer. To obtain a copy of the Safety and Warranty Guide, go to the Support Web site at http://www.lenovo.com/support. This section provides instructions on how to replace a PCI adapter.
  • Page 32 2. While holding the left rear of the computer chassis down, pull upward on the handle provided to remove the PCI riser assembly including any adapters that are already installed. 3. Open the adapter latch and remove the failing adapter. 4.

  • Page 33: Replacing The Fan Assembly

    Safety and Warranty Guide that was included with your computer. To obtain a copy of the Safety and Warranty Guide, go to the Support Web site at http://www.lenovo.com/support. This section provides instructions on how to replace the fan assembly.
  • Page 34 Note: Make sure you note the location of the fan cables when you disconnect the cables from the system board. 4. Remove the front bezel by releasing the tab as shown and pivoting the bezel outward from the bottom. 5. Remove the plastic fan insert behind the bezel by releasing the tabs as shown. Hardware Replacement Guide...

  • Page 35: Replacing The Internal Speaker

    Safety and Warranty Guide that was included with your computer. To obtain a copy of the Safety and Warranty Guide, go to the Support Web site at http://www.lenovo.com/support. This section provides instructions on how to replace the internal speaker.
  • Page 36 2. Pivot the drive bay assembly upward to gain access to the system board. 3. Locate the internal speaker connector on the system board. See “Locating components” on page 1. 4. Disconnect the internal speaker cable from the system board. See “Identifying parts on the system board”...

  • Page 37: Replacing The Keyboard

    Safety and Warranty Guide that was included with your computer. To obtain a copy of the Safety and Warranty Guide, go to the Support Web site at http://www.lenovo.com/support. This section provides instructions on how to replace a keyboard.

  • Page 38: Completing The Parts Replacement

    This section provides instructions on how to replace a mouse. 1. Remove any media (diskettes, CDs, or tapes) from the drives, shut down your operating system, and turn off all attached devices and the computer. 2. Unplug all power cords from electrical outlets. 3.

  • Page 39: Updating (Flashing) Bios From A Diskette Or Cd-Rom

    8. To update your configuration, see ″Using the Setup Utility program″ in the User Guide. Note: In most areas of the world, Lenovo requires the return of the defective CRU. Information about this will come with the CRU or will come a few days after the CRU arrives.
  • Page 40 1. Insert a system program update (flash) diskette or CD into the diskette drive or optical drive. System program updates are available at http://www.lenovo.com/support on the World Wide Web. Note: If you are inserting a CD-ROM into the optical drive, make sure that the computer is turned on.

  • Page 41: Appendix. Notices

    Web sites. The materials at those Web sites are not part of the materials for this Lenovo product, and use of those Web sites is at your own risk.

  • Page 42: Television Output Notice

    Macrovision Corporation. Reverse engineering or disassembly is prohibited. Trademarks The following terms are trademarks of Lenovo in the United States, other countries, or both: Lenovo ThinkCentre IBM is a trademarks of International Business Machines Corporation in the United States, other countries, or both.
  • Page 44 Part Number: 42Y4627 Printed in USA (1P) P/N: 42Y4627...

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Thinkcentre 9300Thinkcentre 9301Thinkcentre 9636Thinkcentre 9638Thinkcentre 9640Thinkcentre 9641 ... Show all

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