Lenovo H520S manual Replacing the Wi-Fi card

Page 47

Step 8. Holding the sides of the microprocessor with your fingers, remove the protective cover protects the gold contacts on the new microprocessor. 2

1

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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, microprocessor fan, and the computer cover.

Replacing the Wi-Fi card

Note: For this procedure, it helps to lay the computer flat.

Chapter 8. Replacing hardware 41

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Lenovo H520s Hardware Maintenance Manual Page Lenovo H520s Hardware Maintenance Manual Page Contents Iv Lenovo H520sHardware Maintenance Manual About this manual Important Safety InformationLenovo H520sHardware Maintenance Manual Electrical safety Safety informationGeneral safety Lenovo H520sHardware Maintenance Manual Handling electrostatic discharge-sensitive devices Safety inspection guideGrounding requirements Safety noticesTo Connect To Disconnect Do not≥18 kg37 lbs ≥32 kg70.5 lbs ≥55 kg121.2 lbs Environment SpecificationsGeneral information Type Lenovo H520sLenovo H520sHardware Maintenance Manual General Checkout Lenovo H520sHardware Maintenance Manual Using passwords Using the Setup UtilityStarting the Lenovo Bios Setup Utility program Viewing and changing settingsSetting, changing, or deleting a Power-On Password Administrator PasswordSetting, changing, or deleting an Administrator password Select Save changes and Exit from the menu Enabling or disabling a deviceSelecting or changing the startup device sequence Selecting a startup deviceSelecting a temporary startup device Exiting the Lenovo Bios Setup Utility program Lenovo H520sHardware Maintenance Manual Error FRU/Action Symptom-to-FRU IndexHard disk drive boot error Power Supply ProblemsPost Error Message Description/Action Post error codesUndetermined problems Locating connectors, controls and components Font view Rear view Hardware components Identifying parts on the motherboard Lenovo H520sHardware Maintenance Manual General information Pre-disassembly instructionsReplacing hardware To remove the computer cover Replacing the keyboard and mouseRemoving the computer cover To replace the keyboard and mouseRemoving the front bezel To replace an optical drive Replacing an optical driveTo remove the front bezel Replacing hardware To replace the hard disk drive Replacing the hard disk driveReplacing a memory module Replacing the Power supply Replacing the graphic card Lenovo H520sHardware Maintenance Manual Replacing the microprocessor fan Replacing the system fanReplacing the heat-sink Replacing the CPU Lenovo H520sHardware Maintenance Manual Replacing the Wi-Fi card Replacing the front USB/card reader/audio module Replacing the motherboard Lenovo H520sHardware Maintenance Manual Memory FRU listsProcessor Mother BoardMT16JTF51264AZ-1G4D1 4GB DDRIII1333RAMR Hard Drive HMT351U6CFR8C-PB 4GB D3-1600RAM-HFMechanical Power SupplyOptical Drive Graphic CardUSB 3.0 PCI-E Interface Card Wi-Fi PCI-E Interface CardRemote Controller TV TunnerKeyboard & Mouse Chassis Lenovo H520sHardware Maintenance Manual Automatic Power-On features Additional Service InformationPower management Advanced configuration and power interface Acpi Bios
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