Installing the Optional Hard Drive Fan
1. Slide the fan between the hard drive bays until it snaps into place.
2. Connect the fan cable to the FAN_HDD connector on the system board (see System Board Components).
3. Replace the computer cover (see Replacing the Computer Cover).
4. Connect your computer and devices to electrical outlets, and then turn them on.
System Board
Removing the System Board
1. Follow the procedures in Before You Begin.
2. Remove the computer cover (see Removing the Computer Cover).
3. Disconnect the fan cable from the FAN_CAGE connector on the system board (see System Board Components).
4. Remove any full-length expansion cards (see Removing PCI and PCI Express Cards).
5. Remove the two screws securing the card fan assembly, then remove the assembly and set it aside.