HP Visualize J280 Owner's Manual page 151

Any Combination of memory may be used, although, for maxi-
mum performance, we recommend using common-sized memory
DIMMs; either all 32 MB or 128 MB DIMM pairs. Therefore, to
achieve both maximum performance and maximum future ca-
pacity, use 128 MB DIMM pairs exclusively.
Figure B–23. Memory DIMM Sequence
9.
Open the ejector tab by pressing down on it at the left of the con-
nector. Refer to Figure B–24.
B-41