there is a graphics card pci express 16 that supports the proliant ml 150 g6

The ML150 G6 has a PCIe gen 2 x16 slot. You can definitely put a graphics card into it. HP doesn't specifically list graphics cards for that chassis in the quickspecs. You should be SAFE using a graphics card that doesn't have any external power connections.

Do you know if you have the 460W or the 750W power supply?
 


I have 460W. What you propose as the best grafic card in this situation?
Thank you!