Dell Dimension 9150 Owner's Manual page 75

5 Align the notch on the bottom of the module with the crossbar in the connector.
notch
memory module
cutouts (2)
NOTICE:
To avoid damage to the memory module, press the module straight down into the connector
while you apply equal force to each end of the module.
6 Insert the module into the connector until the module snaps into position.
If you insert the module correctly, the securing clips snap into the cutouts at each end of the
module.
7 Close the computer cover.
crossbar
notches
memory module
cutouts (2)
notches
memory module
cutouts (2)
crossbars
Removing and Installing Parts
crossbars
75