Apple Power Macintosh 4400 - Manual (Page 165)

To install a communication card, follow these steps:
1 To install a communication card in the bottommost slot, you may find it easier to
maneuver inside the computer if you first remove the video DIMM.
Refer to “Installing a Video DIMM” later in this chapter for information on
the video DIMM.
To install a card in the communication
slot you may need to temporarily remove
the video DIMM. Reinstall the video DIMM
after the card is seated in the slot.
165 Installing Expansion Cards and Additional Memory