Upgrade Notebook Santech G27 Clevo P370em

[PILADE]

Hi to All! My system Spec is Intel core i7 3840 and 12 gb ram with two ati 7970m...i'm having problems with these graphic cards..i suspect 1 is damaged.This notebook is not covered by guarantee so i think i should change my VGA...

So i ask...does this notebook support 2 geforce 880 m 8 gb sli? (or 2 geforce 860m 4gb sli ?) The power supplier is 330w.

Thanks in advance for your answers.

 

[PILADE]

Thanks So much for your Answer!