Dell Dimension DMC Owner's Manual page 77

Align the notch on the bottom of the module with the crossbar in the connector.
9
NOTICE:
To avoid breaking the memory module, do not press near the middle of the module.
Insert the module straight down into the connector, ensuring that it fits into the vertical
10
guides at each end of the connector. Press firmly on the ends of the module until it snaps into
place.
If you insert the module correctly, the securing clips snap into the cutouts at each end of the
module.
memory connector closest
to microprocessor
notch
memory module
cutouts (2)
securing clips (2)
connector
crossbar
77
Adding Parts