Help me with this graphic card!!!!!!!!

[Pedro Miguel]

I have this pc (http://www.asus.com/pt/Desktops/CM6431/ # specifications) with the i5 3450, and 4gb ram.
I will buy this card and((http://www.pixmania-pro.com/pt/pt/20065851/art/sapphire-technology/radeon-hd-7870-oc-ghz-edition-2-gb-gddr5-pci-express-3-0-11199-19-20g.html) and
I was wondering if my motherboard and pci serves for this card, and the card fits inside the tower.
this source is for my pc?
http://www.pixmania-pro.com/pt/pt/04750361/art/cooler-master/fonte-de-alimentacao-pc-gx-550-w-rs-550-acaa-e3.html)

sorry for bad English, i am using google translator

 

[MJSBLUES]

The motherboard has a 1 x PCI-e x 16 so yes it can, the case size is 173 x 360 x 400 mm so it should fit the 7870 in.
todo debería funcionar