Apple Power Macintosh 4400 - Manual (Page 144)

Your computer supplies 40 watts (W) of power to the two PCI slots so you
can install either one 25-W card and one 15-W card, or two 15-W cards.
Video DIMM slot
(Your computer has a video
DIMM already installed.)
Cache slot
(Level 2 cache)
PCI (peripheral component
interconnect) slots (2)
DRAM DIMM slots (3)
(Your computer may have a
DRAM DIMM already installed.)
DRAM slot 3
DRAM slot 2
DRAM slot 1
Communication slot
(Your computer may have
an internal modem card
already installed.)
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