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System Board Assembly

Dell Studio™ 1557/1558 Service Manual

  Removing the System Board Assembly

  Replacing the System Board Assembly

WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.

CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such as a connector on the back of the computer).

CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell™ is not covered by your warranty.

CAUTION: To help prevent damage to the system board, remove the main battery (see Before Working Inside Your Computer) before working inside the computer.

The BIOS chip in the system board contains the Service Tag, which is also visible on a barcode label on the bottom of the computer.

Removing the System Board Assembly

1. Follow the instructions in Before You Begin.
   
   
2. Remove the palm rest (see Removing the Palm Rest).
   
   
3. Remove the optical drive (see Removing the Optical Drive).
   
   
4. Disconnect the fan cable, AC adapter cable, USB cable, ExpressCard cables, and subwoofer cable from their respective system board connectors.
   
   
5. Remove the six screws that secure the system board to the computer base.
   
   

1	fan cable connector	2	screws (6)
3	AC adapter cable connector	4	USB cable connector
5	ExpressCard cables	6	subwoofer cable connector
7	system board

6. Remove the processor heat sink (see Removing the Processor Heat Sink).
   
   
7. Remove the processor (see Removing the Processor Module).
   
   
8. Remove the processor bracket from the system board.
   
   
9. Remove the Mini-Card from the system board (see Removing the Mini- Card).
   
   
10. Remove the system board.
    
    

NOTE: Depending on your system configuration, the number of screws shown here may be greater than the number of screws present on your computer.

Replacing the System Board Assembly

CAUTION: Ensure that no loose cables get caught beneath the system board.

Follow the steps in Removing the System Board Assembly in reverse order.

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