Dell SmartStep 200N Replacement Manual page 24

HINT: If you are
installing one memory
module, install it in the
socket labeled "DIMM A."
If you are installing a
second module, install it
in the socket labeled
"DIMM B."
24 Memor y Module, Modem , a n d O p t i c a l D r i v e
Ground yourself and install the new memory module:
3
Align the notch in the module with the slot in the center of the
a
connector at approximately a 45-degree angle.
Slide the edge of the module firmly into the connector, and rotate
b
the module down until it clicks into place. If you do not feel a
click, remove the module and reinstall it.