Dell XPS 720 (Mid 2007) - Manual (Page 139)

Removing and Installing Parts
139
System Board
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions in the Product
Information Guide
Removing the System Board
NOTICE:
The system board and metal tray are connected and are removed as one piece.
1 Follow the procedures in "Before You Begin" on page 85.
2 Remove the computer cover (see "Removing the Computer Cover" on page 86).
3 Disconnect the fan cable from the FAN_CAGE connector on the system board (see "System Board
Components" on page 89).
4 Remove any full-length expansion cards (see "Removing PCI and PCI Express Cards" on page 95).
5 Remove the two screws securing the card fan assembly, then remove the assembly and set it aside.
6 Remove any additional components that may restrict access to the system board.
7 Disconnect all cables from the system board.
1 screw (2) 2 card fan assembly 3 fan connector
1
2
3