Lenovo 3122, 3120, 3128, 3126 manual Locating internal drives, System board part locations

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Figure 4. System board part locations

1Microprocessor

2Microprocessor fan connector

3Memory slots (4)

4Thermal sensor connector

524-pin power connector

6Battery

7Clear CMOS (Complementary Metal Oxide Semiconductor) /Recovery jumper

8SATA connectors (4)

9Front panel connector

10Front USB connector

11Cover presence switch connector (also called intrusion switch connector)

12Front USB connector

13Serial (COM 2) connector

14PCI card slot

15Power fan connector

16Internal speaker connector

17Front audio connector

18PCI Express x1 card slots (2)

19PCI Express x16 graphics card slot

20System fan connector

214-pin power connector

Locating internal drives

Internal drives are devices that your computer uses to read and store data. You can add drives to your computer to increase storage capacity and enable your computer to read other types of media. Internal drives are installed in bays. In this manual, the bays are referred to as bay 1, bay 2, and so on. Your computer comes with the following factory-installed drives:

•An optical drive in bay 1

•A 3.5-inch hard disk drive in bay 3

When installing or replacing an internal drive, it is important to note the type and size of the drive that you can install or replace in each bay and correctly connect the cables to the drive installed. Refer to the

Chapter 1. Product overview 11

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Contents ThinkCentre User Guide Second Edition December Copyright Lenovo Contents Index Important safety information Iv ThinkCentre User Guide Product overview FeaturesConnectivity Preinstalled operating system Software provided with your Windows operating system SpecificationsSoftware overview Lenovo ThinkVantage Tools Locations Lenovo Solution CenterFront connector, control, and indicator locations Locating connectors and parts on the rear of your computerConnector Description If you use speech-recognition software Locating parts on the system board Locating componentsSystem board part locations Locating internal drivesDrive bay locations Handling static-sensitive devices Installing or replacing hardwareInstalling or replacing hardware Opening the computer cover Installing external optionsRemoving the front bezel Removing and reinstalling the front bezelWhat to do next Accessing the system board components and drivesRemoving a memory module Installing or replacing a memory moduleOpening the retaining clips Installing or replacing a PCI cardRemoving a PCI card Installing the PCI card Installing the card reader Installing or replacing the card readerInstalling the card reader Installing the screw that secures the card reader Replacing the card reader Installing the card reader Replacing the battery Replacing the hard disk drive Removing the old batteryRemoving the hard disk drive Removing the hard disk drive from the bracket Replacing the optical drive Installing the hard disk drivePivoting the optical drive bay Removing the old optical drive Installing a new optical drive Replacing the heat sink and fan assemblyScrews that secure the heat sink and fan assembly Removing the heat sink fan duct Installing the heat sink fan duct Replacing the power supply assemblyInstalling or replacing hardware Removing the heat sink fan duct Power connectors on the system board Installing the power supply assembly Replacing the microprocessor Accessing the microprocessor Installing or replacing hardware Replacing the internal speaker Removing the front bezel Removing the cover presence switch Removing the internal speaker Installing the new internal speaker Reinstalling the cover presence switch Replacing the front audio and USB assemblyRemoving the front audio and USB assembly Replacing the mouse Replacing the keyboardMouse connectors Completing the parts replacementIntegrated cable lock Obtaining device drivers Basic security featuresPassword protection Erasing a lost or forgotten password clearing Cmos Creating recovery media Recovery informationCreating and using recovery media Performing a backup operation Using recovery mediaPerforming backup and recovery operations Using the Rescue and Recovery workspace Performing a recovery operationCreating a rescue medium Creating and using a rescue mediumUsing a rescue medium Solving recovery problems Installing or reinstalling device driversThinkCentre User Guide Starting the Setup Utility program Using the Setup Utility programViewing or changing settings Using passwordsPower-on password Password considerationsAdministrator password Setting, changing, or deleting a passwordViewing or changing the startup device sequence Selecting a startup deviceSelecting a temporary startup device Exiting the Setup Utility program Updating system programs Using system programsUpdating flashing the Bios from a disc Recovering from a Post and Bios update failure Updating flashing the Bios from your operating systemUpdating system programs ThinkCentre User Guide Basic troubleshooting Troubleshooting and diagnostic programsLenovo Solution Center Diagnostic programsPC-Doctor for DOS Lenovo ThinkVantage ToolboxNon-optical mouse Cleaning the mouseOptical mouse Troubleshooting and diagnostic programs ThinkCentre User Guide Information resources Getting information, help, and serviceOnline Books folder Lenovo ThinkVantage ToolsSafety and warranty Access HelpLenovo Welcome Lenovo Support Web siteCalling for service Help and serviceUsing the documentation and diagnostic programs Purchasing additional services Using other servicesAppendix A. Notices Television output notice Trademarks ThinkCentre User Guide CRU IndexInstalling options Memory module PCI card Security features Set Power-On Password ThinkCentre User Guide Page 0A94223