Thank you for writing to Dell Community Forum.
You can install 1033 or 1333 MHz DDR3 Non-ECC Memory only on this system.
There are 2 connectors and the minimum memory is 1GB and maximum memory is 4GB.
If you have any question please private message us the service tag of the system along with your email id.
(Note: please don't mention the service tag or email id on the public forum as it contains your personal information).
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