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Lenovo H520s User Manual

Lenovo H520s
59 pages
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LenovoH520s
HardwareMaintenanceManual
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MachineTypes:10093/2561/4746
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Lenovo H520s Specifications

General IconGeneral
ChipsetIntel H61
StorageUp to 2TB HDD
AudioIntegrated HD Audio
Power Supply180W
RAMUp to 8GB DDR3
GraphicsIntegrated Intel HD Graphics or optional NVIDIA GeForce
Operating SystemWindows 8
Optical DriveDVD-RW or Blu-ray
Networking10/100/1000 Mbps Ethernet
PortsHDMI, VGA, Audio ports, Ethernet
ProcessorIntel Core i3/i5/i7

Summary

About this manual

Important Safety Information

Read all caution and danger statements before performing instructions.

Safety information

General safety

Follow rules for safe practices during maintenance and lifting.

Electrical safety

Precautions for handling electrical current and avoiding shock hazards.

Safety inspection guide

Checklist to identify potentially unsafe conditions before servicing.

Handling electrostatic discharge-sensitive devices

Procedures to protect sensitive electronic components from ESD damage.

Grounding requirements

Importance of proper electrical grounding for safety and system function.

Safety notices

DANGER and CAUTION notices related to electrical hazards and laser safety.

General information

Specifications

Lists physical specifications and environmental operating parameters for the computer.

General Checkout

Using the Setup Utility

Starting the Lenovo BIOS Setup Utility program

Steps to access and launch the BIOS Setup Utility program.

Viewing and changing settings

How to navigate and modify system configuration options within the BIOS.

Using passwords

Setting up Administrator and Power-On passwords for system security.

Enabling or disabling a device

Instructions to enable/disable various hardware devices via BIOS settings.

Selecting a startup device

Procedures for choosing temporary or permanent boot device sequences.

Exiting the Lenovo BIOS Setup Utility program

Steps to save or discard changes and exit the BIOS Setup Utility.

Symptom-to-FRU Index

Hard disk drive boot error

Identifies causes and actions for hard disk drive boot failures.

Power Supply Problems

Procedures to diagnose and resolve issues related to the power supply.

POST error codes

Explains Power-On Self-Test (POST) error messages and their meanings.

Undetermined problems

Systematic troubleshooting steps for issues not covered by specific error codes.

Locating connectors, controls and components

Font view

Diagram and labels for front-facing computer controls and connectors.

Rear view

Diagram and labels for rear-facing computer connectors and ports.

Hardware components

Illustration showing the main internal hardware components of the computer.

Identifying parts on the motherboard

Detailed illustration and labeling of motherboard connectors and components.

Replacing hardware

General information

General information and pre-disassembly instructions before replacing parts.

Replacing the keyboard and mouse

Step-by-step instructions for replacing the keyboard and mouse.

Removing the computer cover

Procedures for safely removing the computer's outer casing.

Removing the front bezel

Instructions for removing the front panel of the computer.

Replacing an optical drive

Steps to remove and install an optical drive.

Replacing the hard disk drive

Detailed instructions for removing and installing a hard disk drive.

Replacing a memory module

Steps for removing and installing RAM modules.

Replacing the Power supply

Instructions for removing and installing the power supply unit.

Replacing the graphic card

Procedures for removing and installing a graphics card.

Replacing the system fan

Steps to remove and install the computer's system fan.

Replacing the microprocessor fan

Instructions for removing and installing the CPU cooling fan.

Replacing the heat-sink

Procedures for removing and installing the CPU heat sink.

Replacing the CPU

Detailed steps for removing and installing the central processing unit.

Replacing the Wi-Fi card

Steps for removing and installing the wireless network card.

Replacing the front USB/card reader/audio module

Instructions for replacing the front panel connectivity module.

Replacing the motherboard

Comprehensive steps for removing and installing the main system board.

FRU lists

Lists of Field Replaceable Units (FRUs) with part numbers for replacement.

General information

Additional Service Information

Provides supplementary information for service representatives.

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