65Installing an expansion cardTo install an expansion card:Caution: Your system accepts low profile PCI cards only.1 Remove the computer cover (see page 55).2 Locate an empty PCI-E or PCI conventional slot on the mainboard.3 Remove the bracket lock that holds the bracket to the computer. Savethe bracket lock.4 Pull out the bracket on the housing opposite the selected empty slot.5 Remove the expansion card from its protective packaging.6 Align the card with the empty bracket and then insert it into the slot.Make sure that the card is properly seated.7 Secure the card to your computer with the bracket lock you removedearlier.8 Replace the computer cover (see page 55).When you turn on the computer, BIOS (Basic Input/Output System)automatically detects and assigns resources to the newly-installed devices.Replacing the Veriton 5900Pro's hard diskFollow these steps to replace your computer's hard disk:1 Remove the computer cover.2 Detach all cables connected to the hard disk and pull the hard disk out.3 Remove the drive rails that hold the hard disk to the disk frame and detachthe hard disk. Set the drive rails aside.4 Insert the new hard disk into the frame and secure it with drive rails.5 Reattach all cables to the new hard disk.Note: Make sure that the other ends of the disk cables are securelyconnected to their corresponding connectors on the mainboard.6 Reinstall the metal bracket frame to the housing.7 Replace the computer cover.