Alienware X51 r2 help

[SNEAKYZACK]

So my friend has a Alienware X51 r2 and it has the stupid 330 watt external power supply which inst enough to run the gpu in it. So I was hoping that it was possible to buy a better external psu considering the case is to small for an internal and he doesn't want to buy a new case. If there are no external power supplies out there is it possible to plug it right into a wall with no PSU just a converter

 

[Dark Lord of Tech]

Nope , that system is proprietary , so upgrades are very limited.