7–42 433611-001 Service Reference Guide, dx7300
Removal and Replacement Procedures— Slim Tower (ST) Chassis
7.19 System Board
1. Prepare the computer for disassembly (Section 7.1).
2. Remove the computer cover (Section 7.5).
3. Remove all PCI and PCI Express expansion boards (Section 7.9).
4. Remove the fan shroud from the chassis (Section 7.11).
5. Remove the chassis fan from the chassis (Section 7.18)
6. Rotate the drive cage to its full upright position.
7. Remove the security clip (Section 7.4.1) and rotate the power supply to its full upright
position.
8. Disconnect all data and power cables from the system board.