acer aspire 5738z eGPU?

I have an aspire 5738z and I would like to try an eGPU. I have read the instructions here ( http://forum.notebookreview.com/e-gpu-external-graphics-discussion/418851-diy-egpu-experiences.html) but they are a little confusing. I have 2 free ePCI ports free I think (not physically checked but EVEREST Extreme Edition tells me I have at least 2 free) so I think I can connect a eGPU but I have read that it won't work because of my GMA4500m, but I don't really understand why this is or even if its true or not. Can anyone give me some advice whether I can put a eGPU on my laptop, if so which one etc?

Thanks

 

I'm pretty confident that the GMA4500m isn't going to stop your computer from running an external graphics card. However I'm gonna have to say to check how many Mini-PCIe ports you have. My now broken Acer 4820TG(A pretty nice laptop if you ask me) surprisingly only had 1 Mini-PCIe port which was used to accomodate a Wifi card. I'd imagine you'd also only have 1.

To add to that sometimes there are issues with getting external cards to run( I don't know from personal experience but that's what I've heard) which is unfortunately going to make me ask whether you've considered any other alternatives. Lets say you did get the external graphics card to work perfectly, you'd have to buy a (probably) outdated graphics card since anything newer will be overkill on the PCI 1.1 bandwidth limit your laptop has. Then there's the issue that your processor might become a bottleneck and whether you could get something better for cheaper if you considered say an AMD APU or a budget desktop for your (gaming?) needs.

Sorry if I'm not much help, external graphics solutions are new territory to me.