Removing The System Board - Dell Vostro A840 Service Manual

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System Board
Dell™ Vostro™ A840/A860 Service Manual
Removing the System Board
Replacing the System Board
Removing the System Board
CAUTION: 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.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface
(such as the back panel) on the computer.
The system board's BIOS chip contains the Service Tag, which is also visible on a barcode label on the bottom of the computer. The replacement kit for the
system board includes a CD that provides a utility for transferring the Service Tag to the replacement system board.
NOTICE: Handle components and cards by their edges, and avoid touching pins and contacts.
1. Follow the instructions in Before You
2. Remove any installed media cards from the 3-in-1 media card slot.
3. Remove any installed memory modules and the WLAN card (see
4. Remove the optical drive (see
5. Remove the center control cover (see
6. Remove the display assembly (see Display).
7. Remove the keyboard (see
8. Remove the palm rest (see
9. Remove the 3-in-1 media card reader.
10. Disconnect the system fan, speaker, RJ-11, and DC-In cables from the system board connectors.
11. Remove the system fan (see
12. Remove the mylar tapes and then remove the four screws from the back of the computer securing the hard disk.
13. Remove the two remaining screws that secure the system board to the computer base.
Begin.
Optical Drive).
Removing the Center Control
"Removing the Keyboard).
Palm Rest).
Removing the System Fan).
Memory Module and Removing the WLAN
Cover).
Card).