Hi TPAXLE,

The max memory supported by the e5470 is 32 GB depending on the processor on the system. Kindly find the specifications here - http://dell.to/2qgywLz

Kindly find the compatible memory modules from Dell - http://dell.to/2qgy4xe

Also find the compatible memory modules from Crucial here - http://bit.ly/2qqCMoi

Also, please click my DELL-username and write me a private message with the service tag and your Name for case records.

Let us know if you have any other queries.