Dell XPS 27 CPU & Graphic card upgrade

[ivamg]

I just bought Dell XPS All-In-One XPSo27-4119BK.
I wish to upgrade processor and graphic card by myself.
I wish to upgrade CPU to i7-3770s (I have i5-3450s now), and Graphic card to GTX 675MX (MXM 3b) - I have GT 640M now.
Does existing motherboard allow to make this upgrades? Does it have sockets for CPU and Graphic card to upgrade them?
Thanks a lot for your answers!

 

[rgd1101]

nope.