Dell XPS 27 Graphic card & CPU upgrade

ivamg

Honorable
Jan 24, 2013
3
0
10,510
I just bought Dell XPS All-In-One XPSo27-4119BK.
I wish to upgrade graphic card and processor by myself.
I wish to upgrade Graphic card to GTX 675MX (MXM 3b) and CPU to i7-3770s - I have GT 640M and i5-3450s 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!