Lenovo 8456, 8455, 8453, 8454, 8459, 8460, 8457 Microprocessor and heat sink 10 Sata IDE connectors

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The following illustration shows the locations of parts on the system board for some models.

1	Microprocessor and heat sink	10	SATA IDE connectors (2)
2	Microprocessor fan connector	11	Front panel connector
3	Memory connector 1	12	Clear CMOS/Recovery jumper
4	Memory connector 2	13	Front USB connectors (2)
5	Power connector	14	Battery
6	Diskette drive connector	15	PCI adapter connectors
7	Primary IDE connector	16	Front audio connector
8	Secondary IDE connector	17	AGP adapter connector
9	Fan connector	18	12v power connector

Chapter 1. Installing options 15

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Contents User Guide Lenovo 3000 J Series Page Lenovo 3000 J Series Page Contents Iv User Guide Conditions that require immediate action Important safety informationService General safety guidelinesPower cords and power adapters Plugs and outlets Extension cords and related devicesBatteries Heat and product ventilation CD and DVD drive safetyLithium battery notice Additional safety informationTo connect To disconnect Laser compliance statement Modem safety informationPower supply statement Information resources OverviewXiv User Guide Features Installing optionsConnectivity Operating systems, preinstalled varies by model Available options Environment SpecificationsDimensions WeightTools required Supported operating positionsHandling static-sensitive devices Installing external options Locating connectors on the rear of your computer Obtaining device drivers Connector DescriptionRemoving the cover Locating components Accessing system board components Identifying parts on the system board User Guide Microprocessor and heat sink 10 Sata IDE connectors Fan connector 11 Clear CMOS/Recovery jumper Installing memory What to do next Installing PCI adaptersSecurity features Changing the battery Password protectionPadlock Erasing a lost or forgotten password clearing Cmos Replacing the cover and connecting the cables Using passwords Using the Setup UtilityStarting the Setup Utility program Viewing and changing settingsAdministrator or Supervisor Password Changing the startup device sequence Exiting from the Setup Utility programSelecting a startup device Selecting a temporary startup deviceUser Guide Appendix A. Updating system programs Updating flashing Bios from a disketteSystem program User Guide Cleaning an optical mouse Appendix B. Cleaning the mouseCleaning a mouse with a ball User Guide Basic AT commands Appendix C. Manual modem commandsInternal speaker on until carrier detected Low speaker volumeSet Pulse dial as default Set Tone Dial as defaultExtended AT commands MNP/V.42/V.42bis/V.44 commands Fax Class 2 commands Fax Class 1 commandsVoice commands Appendix C. Manual modem commands User Guide Appendix D. Notices Trademarks Television output noticeIndex Page Page Part Number 41T3715