Dell Precision T3400 (Late 2007) - Manual (Page 162)

162
Adding and Replacing Parts
NOTICE:
To avoid damage to the memory module, press the module straight down
into the connector while applying equal force to each end of the module.
5 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.
6 Replace the computer cover (see "Replacing the Computer Cover" on
page 262).
NOTICE:
To connect a network cable, first plug the cable into the network port or
device and then plug it into the computer.
7 Connect your computer and devices to electrical outlets, and then turn
them on.
8 Enter System Setup (see "Entering System Setup" on page 81) and verify
the value for System Memory.
The amount of System Memory reflects the newly installed memory.
NOTE:
If the amount of memory is incorrect, check the installed memory
modules to ensure that they are seated properly in their connectors.
9 Press <Esc> to exit System Setup.
Cards
NOTE:
Check the documentation for cards to ensure that you can accommodate
them in your configuration. Some cards that require more physical space and
power (such as PCI Express graphics cards) may restrict the use of other cards.