Looking forward to connect gpu to laptop

http://support.hp.com/us-en/document/c05255318

You don't have thunderbolt so ready made solutions are pretty much out of the question.

It is, in theory, possible that one of your devices is housed in a PCIE device, but the above spec sheet makes it very difficult to tell. You could in theory remove one of these devices, get a PCIE x4 ribbon cable, and extend that to the exterior of the case.

Unfortunately i don't believe there is anyway that your 65W power brick is going to be able to power a GPU of any variety, really.

You're going to have to get creative and make this a DIY project if you really want to get it done.

Not at all practical.