Dell Inspiron DCMA Owner's Manual page 110

3 Align the notch on the bottom of the module with the crossbar in the
connector.
NOTICE:
into the connector while you apply equal force to each end of the module.
4 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.
5 Replace the PCI Express x16 card (see "Cards" on page 111).
6 Replace the computer cover.
NOTICE:
and then plug it into the computer.
7 Connect your computer and devices to electrical outlets, and turn them on.
110
Removing and Installing Parts
2
1
1 cutouts (2)
3 notch
To avoid damage to the memory module, press the module straight down
To connect a network cable, first plug the cable into the network device
3
4
2 memory module
4 crossbar