Lenovo H420 Desktop User Manual

Version 3.0 2011.08Hardware Replacement GuideH4 SeriesMachine type: 10059/7723 10060/7724 10068/7752 10080/3099/1194 10091/2558/119631500379

5Hardware Replacement GuideLocationsChapterThis chapter provides illustrations to help locate the various connectors, controls and components of the c

6Hardware Replacement GuidePCI express adapter cardPCI express adapter connectors Power supplySystem fanOptical driveHard disk driveLocating connector

7Hardware Replacement Guide Note: This computer only can be placed in a vertical position.Locating connectors on the rear of the computerThe followin

8Hardware Replacement GuideUSBconnectors(4)On-board VGA connectorEthernet connectorMicrophone connectorAudio line-out connectorAudio line-in connect

9Hardware Replacement GuideEthernet connectorMicrophone connectorAudio line-out connectorAudio line-in connectorPCI Express X 16 graphics adapter conn

10Hardware Replacement GuideOn-board VGA connector (Selected models only)USBconnectors(4)Ethernet connectorMicrophone connectorAudio line-out connec

11Hardware Replacement GuidePS/2 mouse connectorHDMI connectorUSBconnectors(4)On-board VGA connector Ethernet connectorMicrophone connectorAudio lin

12Hardware Replacement GuidePS/2 keyboard connectorPS/2 mouse connectorOn-board VGA connector (Selected models only)HDMI connector (Selected models on

13Hardware Replacement GuideIdentifying parts on the system boardThe system board (sometimes called the motherboard) is the main circuit board in your

14Hardware Replacement GuideClear CMOSFrontUSBconnectors(2)Front audio connectorPCI express X 1 adapter connectors (3)PCI express X 16 adapter conn

Hardware Replacement Guide© Copyright Lenovo 2011. All rights reserved.LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant

15Hardware Replacement GuideSATA IDE connectors (3)Front panel connectorSerial (com2) connectorFrontUSBconnectors(2)Front audio connectorPCI Expres

16Hardware Replacement GuideThermal sensor header connectorPower connectorSATA IDE connectors (4)Front panel connectorFrontUSBconnectors(2)Clear CM

17Hardware Replacement GuideMicroprocessor fan connectorMemory connectors (2)Thermal sensor header connectorPower connectorSATA connectors (4)Front pa

18Hardware Replacement GuideMicroprocessor and heatsinkMicroprocessor fan connectorMemory connectors (2)Thermal sensor header connectorPower connector

19Hardware Replacement Guide Attention: Do not remove the computer cover or attempt any repair before reading the “Important safety information” in

20Hardware Replacement Guide5. Slide the computer cover to the rear of the chassis to remove it. Note: For this procedure, it helps to lay the compu

21Hardware Replacement GuideRemoving and replacing the front bezelTo remove and replace the front bezel: 1. Remove the computer cover. Refer to “Remo

22Hardware Replacement GuideReplacing a memory module Attention: Do not remove the computer cover or attempt any repair before reading the “Importan

23Hardware Replacement Guide5. Refer to “Completing the installation”.Replacing the hard disk drive Attention: Do not remove the computer cover or

24Hardware Replacement Guide3. Remove the four screws that secure the hard disk drive to drive bay.4. Remove the hard disk drive by pulling it strai

25Hardware Replacement Guide5. Push the optical drive straight out of the front of the chassis.6. Slide the new optical drive into the bay from the

26Hardware Replacement GuideReplacing the heatsink assembly Attention: Do not remove the computer cover or attempt any repair before reading the “Im

27Hardware Replacement Guide7. Use the thermal grease syringe to place five drops of grease on the top of the microprocessor. Each drop of grease shou

28Hardware Replacement GuideReplacing a PCI or AGP adapter Attention: Do not remove the computer cover or attempt any repair before reading the “Imp

29Hardware Replacement Guide3. Install the new adapter into the same adapter connector. 4. Ensure the adapter is fully seated into the adapter conne

30Hardware Replacement GuideReplacing the keyboard and mouse Attention: Do not remove the computer cover or attempt any repair before reading the “I

31Hardware Replacement GuideCompleting the installationAfter replacing a part or parts, you must close the computer cover and reconnect all the cables

32Hardware Replacement Guide4. Reconnect the external cables and power cords to the computer. Refer to “Locating connectors on the front of the compu

33Hardware Replacement GuideAppendixChapterDeclarationThank you for using Lenovo products.Carefully read all documents shipped with your computer befo

34Hardware Replacement GuideTrademarksLenovo and the Lenovo logo, IdeaCentre and IdeaCentre logo are trademarks of Lenovo in the United States, other

ContentsOverview ... 1Chapter 1 Locations ...

1Hardware Replacement GuideOverviewThis guide is intended to be used by customers who are replacing Customer Replaceable Units (CRUs) as well as train

2Hardware Replacement GuideAdditional information resourcesIf you have Internet access, the most up-to-date information for your computer is available

3Hardware Replacement Guide• Alwayshandlepartsandothercomputercomponentscarefully.Handleadapters, memory modules, system boards, and micropr

4Hardware Replacement Guide