This thread says a user successfully upgraded an Inspiron 660 to 2x 8 GB. This one here says same thing, and mentions RAM that worked, assuming it's still available... Is it worth putting money into this PC, which only has a 3rd Gen Intel CPU?
I have a Inspiron 660, with the following specs from 'Device Specifications': I am looking at upgrading memory from 8 to 16 GB.   Is this possible?   Looking at the Dell Specifications pdf I see the following under 'Memory': Thank you for any and all assistance/thoughts.  
Inspiron 660 Memory Upgrade From 8GB Possible.