Dell 1721 manual Replacing the System Board Assembly

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23. Lift the left side of the system board, and then carefully lift the system board out of the computer.

1	speaker cable connector	2	sniffer/audio cable connector

3	CIR cable connector	4	Bluetooth cable connector

5	USB I/O cable connector

Replacing the System Board Assembly

CAUTION: Before you begin the following procedure, follow the safety instructions in the Product Information Guide.

NOTICE: Ensure that any loose cables do not get caught beneath the system board.

1.Insert the right side of the system board into the base of the computer at an angle until the connectors on the system board are aligned with the holes on the base of the computer, then carefully lower the system board into place.

2.Replace the twelve M2.5 x 5-mm screws on the top of the system board.

3.Connect the consumer infrared (CIR) cable to the system board.

4.Connect the sniffer cable/audio cable to the system board.

5.Connect the speaker cable to the system board.

6.Connect one end of the cable for the Bluetooth card with wireless technology to the system board.

7.Connect the USB I/O cable to the system board.

8.Replace the fan (see Replacing the Fan).

9.Replace the processor (see Replacing the Processor Module).

10.Replace the processor thermal-cooling assembly (see Replacing the Processor Thermal-Cooling Assembly).

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Contents Page Back to Contents Wireless Sniffer BoardRemoving the Wireless Sniffer Board Computer Base and ComponentsAudio Connector Board Replacing the Wireless Sniffer BoardRemoving the Audio Connector Board Replacing the Audio Connector Board Consumer Infrared CIR BoardRemoving the CIR Board USB Connector Board Removing the USB Connector BoardReplacing the CIR Board Modem Connector Replacing the USB Connector BoardExpressCard Cage Removing the Modem ConnectorReplacing the Modem Connector Removing the ExpressCard CageComputer Base Replacing the ExpressCard CageRemoving the Computer Base Replacing the Computer BaseBefore Working Inside Your Computer Before You BeginRecommended Tools Recommended Tools Before Working Inside Your ComputerBack to Contents Flashing the Bios Flashing the Bios From a CDFlashing the Bios From the Hard Drive Back to Contents Replacing the Bluetooth Card Internal Card With Bluetooth Wireless TechnologyRemoving the Bluetooth Card Removing the Bluetooth Card Replacing the Bluetooth CardMemory Card Blanks Using the Memory Card ReaderInstalling a Memory Card Removing a Memory Card or BlankBack to Contents Coin-Cell Battery Removing the Coin-Cell BatteryReplacing the Coin-Cell Battery Back to Contents Processor Module Removing the Processor ModuleReplacing the Processor Module Page Processor Thermal-Cooling Assembly Removing the Processor Thermal-Cooling AssemblyReplacing the Processor Thermal-Cooling Assembly Back to Contents Display Assembly Removing the Display AssemblyDisplay Replacing the Display Assembly Display Bezel Removing the Display BezelDisplay Panel Replacing the Display BezelRemoving the Display Panel Display Latch Replacing the Display PanelRemoving the Display Latch Page Camera and Microphone Assembly Removing the Camera and Microphone AssemblyReplacing the Display Latch Replacing the Camera and Microphone Assembly Replacing the Fan FanRemoving the Fan Removing the Fan Replacing the FanBack to Contents Replacing the FCM Flash Cache Module FCMRemoving the FCM Removing the FCM Replacing the FCMGraphics Card Assembly Removing the Graphics Card AssemblyReplacing the Graphics Card Assembly Back to Contents Hard Drive Removing a Hard DriveRemoving a Hard Drive Replacing a Hard Drive Replacing a Hard Drive Replacing the Hinge Cover Hinge CoverRemoving the Hinge Cover Removing the Hinge Cover Replacing the Hinge CoverReplacing the Keyboard KeyboardRemoving the Keyboard Removing the Keyboard Replacing the KeyboardBack to Contents Battery Latch Assembly Removing the Battery Latch AssemblyReplacing the Battery Latch Assembly Back to Contents Dimm a Memory Module MemoryRemoving a Memory Module Dimm B Memory ModuleReplacing a Memory Module Dimm B Memory Module Back to Contents Wlan Card Wireless Mini CardsRemoving a Mini Card Removing a Mini Card Replacing a Mini CardMobile Broadband or Wwan Card Page Wpan Card Replacing a Mini Card Back to Contents Replacing the Modem ModemRemoving the Modem Removing the Modem Replacing the ModemBack to Contents Replacing the Optical Drive Optical DriveRemoving the Optical Drive Removing the Optical Drive Replacing the Optical DrivePalm Rest Removing the Palm RestRemoving the Palm Rest Replacing the Palm Rest Replacing the Palm Rest ExpressCards ExpressCard BlanksRemoving an ExpressCard or Blank Installing an ExpressCard or Blank Video Connector Pin Assignments for I/O ConnectorsUSB Connector Video TV-Out ConnectorConnector Speaker Assembly Removing the Speaker AssemblyReplacing the Speaker Assembly Back to Contents System Board Assembly Removing the System Board AssemblyRemove the processor see Removing the Processor Module Replacing the System Board Assembly Replace the processor see Replacing the Processor ModuleBack to Contents Back to Contents