Is it possible to upgrade the XPS 8900 to 64GB or Ram.  I currently have 4 x 8GB  DDr4-2133 UDIMM and am finding that I am getting close to running out.

I can't seem to find an definitive answer on any forums, some people saying the system can't and others saying it can.

I can buy the memory from Crucial just want to know I won't be wasting my money.  I'm made a link to 2 x 16gb sims below (I realise I will need 4 of these).

http://uk.crucial.com/gbr/en/esprimo-p756-e85-/CT7934440

Thanks