Apple Power Macintosh 4400 - Manual (Page 161)

1 If your PCI card has ports for connecting equipment, remove the port cover.
6.88-inch cards fit in the top slot; a 6.88-inch or 12.28-inch card fits in the
middle slot.
Remove the port cover.
Remove the screw
that secures the
port cover.
161 Installing Expansion Cards and Additional Memory