Lenovo ThinkCentre 4518 Hardware Maintenance Manual
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Table of Contents
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Summarization of Contents
Chapter 1. About this manual
Important safety information
Read all caution and danger statements before performing instructions.
Important information about replacing RoHS compliant FRUs
Details on RoHS compliance for replacement parts in electrical and electronic equipment.
Chapter 2. Safety information
General safety
Rules to ensure general safety during maintenance and operation of machines.
Electrical safety
CAUTION regarding electrical hazards and rules for working with electrical equipment.
Voltage-selection switch
Information on setting the voltage-selection switch to match electrical outlet voltage.
Safety inspection guide
Guide to identify potentially unsafe conditions and a checklist for inspection.
Handling electrostatic discharge-sensitive devices
Precautions and procedures for handling parts sensitive to electrostatic discharge (ESD).
Grounding requirements
Information on electrical grounding requirements for operator safety and system function.
Safety notices (multi-lingual translations)
Lists languages for caution and danger safety notices provided.
DANGER
Warning about hazardous electrical current and precautions to avoid shock.
CAUTION: When replacing the lithium battery
Caution regarding lithium battery replacement, handling, and disposal.
CAUTION: When laser products (such as CD-ROMs...)
Notes for when laser products are installed, warning about hazardous laser radiation.
DANGER: Some laser products contain an embedded Class 3A or Class 3B laser diode.
Danger related to embedded Class 3A or Class 3B laser diodes.
CAUTION: Use safe practices when lifting.
Caution to use safe practices when lifting equipment.
CAUTION: The power control button on the device and the power switch on the power supply do not turn off the electrical current...
Caution regarding power controls and ensuring all power cords are disconnected.
Chapter 3. General information
Lenovo Welcome
Introduces built-in features of Lenovo and guides setup tasks.
Lenovo ThinkVantage Tools
Guides to information sources and tools for easier and secure work.
Lenovo ThinkVantage Toolbox
Helps maintain computer, diagnose problems, and learn about technologies.
ThinkVantage Productivity Center
Provides information sources and tools for easy and secure computing.
Additional information resources
Information available on the Lenovo support website for computers.
Specifications
Lists physical specifications for computers, including dimensions, weight, environment, and electrical input.
Chapter 4. General checkout
Attention
Caution regarding drive operations, data overwriting, and FRU replacement.
General error messages
Explains general error messages found by applications or the operating system.
Problem determination tips
Information to assist in problem determination, including machine type and failure symptom.
Chapter 5. Diagnostic programs
Lenovo ThinkVantage Toolbox
Helps maintain computer, improve security, diagnose problems, and test devices.
PC-Doctor for DOS
Diagnostic program that runs independently of Windows OS, useful for starting the system.
Creating a diagnostic disc
Instructions on how to create a diagnostic disc by downloading and burning an ISO image.
Running the diagnostic program from the diagnostic disc
Steps to run diagnostic programs from a created diagnostic disc.
Navigating through the diagnostic programs
Explains how to navigate menus within diagnostic programs.
Running tests
Details on different ways to run diagnostic tests: Normal, Quick, all selected, or single tests.
Test results
Explains the format of diagnostic test results and error codes.
Quick and Full erase - hard disk drive
Details two hard disk drive format utilities: Quick Erase and Full Erase.
Chapter 6. Using the Setup Utility program
Starting the Setup Utility program
Instructions on how to start the Setup Utility program by pressing F1 during boot.
Viewing or changing settings
How to view or change system configuration settings within the Setup Utility.
Using passwords
Information on setting passwords to prevent unauthorized access to the computer and data.
Password considerations
Guidelines for creating strong passwords, including length and character types.
Power-on password
Setting a password that prompts for input each time the computer is turned on.
Administrator password
Deters unauthorized users from changing configuration settings and requires password for Setup Utility access.
Hard Disk Password
Prevents unauthorized access to data on the hard disk drive, even if removed.
Setting, changing, or deleting a password
Steps to set, change, or delete passwords via the Setup Utility program.
Erasing lost or forgotten passwords (clearing CMOS)
Instructions on how to erase lost or forgotten passwords by clearing CMOS settings.
Enabling or disabling a device
Information on enabling or disabling access to devices like USB connectors and SATA controllers.
Selecting a startup device
Instructions on how to select the startup device when the computer does not start as expected.
Selecting a temporary startup device
Procedure to select a temporary startup device from the boot device window.
Selecting or changing the startup device sequence
How to view or permanently change the configured startup device sequence.
Smart performance choices
Adjusting acoustic and thermal performance through the Smart Performance Choice menu.
Exiting the Setup Utility program
Options for saving settings, discarding changes, or returning to default settings.
Chapter 7. Symptom-to-FRU index
Hard disk drive boot error
Lists possible causes and FRU/actions for hard disk drive boot errors.
Power Supply Problems
Procedures to check and verify power supply problems, including FRU/actions.
Diagnostic error codes
Refers to diagnostic error codes for troubleshooting, linking to running tests.
Diagnostic Error Code
Lists diagnostic error codes and their corresponding FRU/Action for troubleshooting.
Diagnostic Error Code
Lists diagnostic error codes and their corresponding FRU/Action for troubleshooting.
Diagnostic Error Code
Lists diagnostic error codes and their corresponding FRU/Action for troubleshooting.
Diagnostic Error Code
Lists diagnostic error codes and their corresponding FRU/Action for troubleshooting.
Diagnostic Error Code
Lists diagnostic error codes and their corresponding FRU/Action for troubleshooting.
Diagnostic Error Code
Lists diagnostic error codes and their corresponding FRU/Action for troubleshooting.
Diagnostic Error Code
Lists diagnostic error codes and their corresponding FRU/Action for troubleshooting.
Diagnostic Error Code
Lists diagnostic error codes and their corresponding FRU/Action for troubleshooting.
Diagnostic Error Code
Lists diagnostic error codes and their corresponding FRU/Action for troubleshooting.
Beep symptoms
Describes beep symptoms and their corresponding FRU/Action for diagnosing issues.
POST error codes
Explains POST error messages and their descriptions/actions for system diagnostics.
Miscellaneous error messages
Lists various error messages and their FRU/Action for troubleshooting common issues.
Undetermined problems
Procedure to follow when encountering undetermined problems, involving component removal.
Chapter 8. Replacing FRUs (Machine Types: 4468, 4473, 4476, 4479, 4495, 4497, 4499, 4504, 4513, 4517, 4524, 7021, 7032, 7034, 7049, 7052, 7053, 7073, 7136, and 7178.)
Important
Emphasizes reading safety information before replacing any FRU.
FRU replacements
States that FRU replacements should only be done by trained service technicians.
Locations
Provides information to locate computer connectors, components, system board parts, and internal drives.
Locating connectors, controls, and indicators on the front of your computer
Figure showing locations of connectors, controls, and indicators on the front of the computer.
Locating connectors on the rear of your computer
Figure showing locations of connectors on the rear of the computer, with color-coding.
Locating components
Figure showing the locations of various components within the computer.
Locating parts on the system board
Figure showing the locations of parts on the system board.
Locating internal drives
Information on locating internal drives and their installation bays.
Handling static-sensitive devices
Precautions to avoid static-electricity damage when handling computer parts and components.
Installing or replacing hardware
Instructions on installing or replacing hardware to expand capabilities or maintain the computer.
Opening the computer cover
Instructions on how to open the computer cover, including a caution.
Removing and reinstalling the front bezel
Instructions on how to remove and reinstall the front bezel of the computer.
Installing or replacing a PCI card
Instructions on how to install or replace a PCI card, including available slots.
Opening the PCI card latch
Illustration showing how to open the PCI card latch.
Removing a PCI card
Notes on card removal, including fitting tightly and using retaining latches.
Installing a PCI card
Steps for installing a new PCI card into the appropriate slot on the system board.
Installing or replacing a memory module
Instructions for installing or replacing memory modules, including guidelines on usage and sequence.
Installing or replacing the card reader
Instructions on how to install or replace a card reader, noting its availability.
Installing the card reader
Steps to install a card reader, including locating the drive bay and removing metal covers.
Replacing the card reader
Steps for replacing an existing card reader, including cable disconnection and chassis removal.
Replacing the battery
Information on replacing the computer battery that maintains date, time, and configuration.
Replacing the battery (cont.)
Continues battery replacement steps, including reinstallation and configuration.
Replacing the power supply assembly
Instructions for replacing the power supply assembly, including safety warnings.
Replacing the power supply assembly (cont.)
Steps to replace the power supply assembly, including cable disconnection and screw removal.
Replacing the heat sink and fan assembly
Instructions for replacing the heat sink and fan assembly, with a caution about heat.
Replacing the microprocessor
Instructions for replacing the microprocessor, including cautions about heat.
Replacing the system board
Instructions for replacing the system board, with a caution about heat.
Replacing the primary hard disk drive
Instructions for replacing the primary hard disk drive, including cable disconnection and cage removal.
Replacing the secondary hard disk drive
Instructions for replacing the secondary hard disk drive, including releasing the cage and removing the drive.
Replacing the front fan assembly
Instructions for replacing the front fan assembly, noting its availability on some models.
Replacing the rear fan assembly
Instructions for replacing the rear fan assembly, including cable disconnection and rubber mount removal.
Replacing the front audio and USB assembly
Instructions for replacing the front audio and USB assembly, including cable disconnection.
Replacing the internal speaker
Instructions for replacing the internal speaker, noting its availability on some models.
Completing the parts replacement
Steps to reinstall the computer cover, reconnect cables, and update configuration in Setup Utility.
Completing the parts replacement (cont.)
Continues part replacement steps, including cover reinstallation and cable reconnection.
Chapter 9. Replacing FRUs (Machine Types: 4466, 4471, 4474, 4477, 4480, 4485, 4496, 4498, 4503, 4512, 4514, 4518, 4554, 7005, 7023, 7033, 7035, 7072, 7079, and 7177.)
Important
Emphasizes reading safety information before replacing any FRU.
FRU replacements
States that FRU replacements should only be done by trained service technicians.
Locations
Provides information to locate computer connectors, components, system board parts, and internal drives.
Locating connectors, controls, and indicators on the front of your computer
Figure showing locations of connectors, controls, and indicators on the front of the computer.
Locating connectors on the rear of your computer
Figure showing locations of connectors on the rear of the computer, with color-coding.
Locating components
Figure showing the locations of various components within the computer.
Locating parts on the system board
Figure showing the locations of parts on the system board.
Locating internal drives
Information on locating internal drives and their installation bays.
Handling static-sensitive devices
Precautions to avoid static-electricity damage when handling computer parts and components.
Installing or replacing hardware
Instructions on installing or replacing hardware to expand capabilities or maintain the computer.
Opening the computer cover
Instructions on how to open the computer cover, including a caution.
Removing and reinstalling the front bezel
Instructions on how to remove and reinstall the front bezel of the computer.
Accessing the system board components and drives
Instructions on how to access system board components and drives by removing other parts.
Installing or replacing a memory module
Instructions for installing or replacing memory modules, including guidelines on usage and sequence.
Installing or replacing a PCI card
Instructions on how to install or replace a PCI card, including available slots.
Installing the card reader
Steps to install a card reader, including locating the drive bay and removing metal covers.
Installing the card reader (cont.)
Continues card reader installation steps, including connecting cables and reinstalling the bezel.
Replacing the card reader
Steps for replacing an existing card reader, including cable disconnection and chassis removal.
Replacing the heat sink and fan assembly
Instructions for replacing the heat sink and fan assembly, with a caution about heat.
Replacing the microprocessor
Instructions for replacing the microprocessor, including cautions about heat.
Replacing the microprocessor (cont.)
Continues microprocessor replacement steps, including alignment and socket handling.
Replacing the microprocessor (cont.)
Continues microprocessor replacement steps, including alignment and socket handling.
Replacing the system board
Instructions for replacing the system board, with a caution about heat.
Replacing the system board (cont.)
Continues system board replacement steps, including removing components and cables.
Replacing the system board (cont.)
Continues system board replacement steps, including installing new board and reconnecting cables.
Replacing the heat sink and fan assembly
Instructions for replacing the heat sink and fan assembly, with a caution about heat.
Replacing the system board (cont.)
Continues system board replacement steps, including installing components and drives.
Replacing the system board (cont.)
Continues system board replacement steps, including installing the microprocessor socket cover.
Replacing the system fan assembly
Instructions for replacing the system fan assembly, including disconnecting cables and removing rubber mounts.
Completing the parts replacement
Steps to reinstall the computer cover, reconnect cables, and update configuration in Setup Utility.
Completing the parts replacement (cont.)
Continues part replacement steps, including cover reinstallation and cable reconnection.
Chapter 10. FRU lists
Attention
Advises reading safety information before replacing any FRU.
Note on CRU identification
Explains the meaning of CRU identifiers (1, 2, N) in the FRU tables.
Overall: MT 4468, 4473, 4476, 4479, 4495, 4497, 4499, 4504, 4513, 4517, 4524, 7021, 7032, 7034, 7049, 7052, 7053, 7073, 7136, and 7178
Lists replaceable components available for specific machine type models.
Mechanical FRUs
Lists mechanical Field Replaceable Units (FRUs) that are not illustrated.
Keyboard and Mouse
Lists FRUs for keyboards and mice, including FRU numbers and CRU status.
Chapter 11. Additional service information
Security features
Lists security features covered, including passwords and Vital Product Data.
Hardware-controlled passwords
Using Setup Utility to set hardware-controlled passwords.
Operating system password
Information on operating system passwords for computer access.
Vital Product Data
Describes unique VPD code stored on the system board and its update requirement.
BIOS levels
Information on determining current BIOS levels and obtaining the latest available BIOS.
Updating (flashing) the BIOS from a disc
Instructions on how to update the BIOS from a disc.
Updating (flashing) the BIOS from your operating system
Instructions for updating the BIOS from the operating system via the Lenovo support website.
Recovering from a POST and BIOS update failure
Procedure for recovering from POST and BIOS update failures, known as Boot-block Recovery.
Appendix A. Notices
Lenovo may not offer products, services, or features discussed in this document in all countries.
Lenovo's offering of products, services, and features may vary by country.
Lenovo may have patents or pending patent applications covering subject matter described in this document.
Statement regarding patents and licensing inquiries for Lenovo products.
LENOVO PROVIDES THIS PUBLICATION “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED...
Disclaimer of warranties for the publication content.
This information could include technical inaccuracies or typographical errors.
Information may contain inaccuracies or errors; changes are made periodically.
The products described in this document are not intended for use in implantation or other life support applications...
Products are not intended for life support applications where failure could cause harm.
Lenovo may use or distribute any of the information you supply...
Lenovo may use or distribute supplied information without obligation.
Any references in this publication to non-Lenovo Web sites...
Non-Lenovo web site references are for convenience and not an endorsement.
Any performance data contained herein was determined in a controlled environment.
Performance data determined in controlled environments may vary in other environments.
Television output notice
Notice regarding factory-installed television-output features and copyright protection technology.
European conformance CE mark
Indicates European conformance with the CE mark.
Trademarks
Lists registered trademarks of Lenovo, AMD, and Microsoft.
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