Video card that will fit my HPE

[Vinaell]

I have an HP Elite HPE-110f and im trying to find the best video card i can get to fit my computer. Because of the size of the case it limits my options. I know there was a GTX out there that fit but i dont remember if it was the GTX550 or what. any help would be appreciated.

 

[CrackerJacker1]

Here's the motherboard inside that computer.
Motherboard Specifications, H-RS880-uATX (Aloe) HP Pavilion Elite HPE-110f Desktop PC | HP® Support

It has
One PCI Express x16

You could I think put that video card in there, but it's a PCI-Express v2 video card. It could cause a performance drop..
AMD Radeon HD 5870 PCI-Express Scaling Review | techPowerUp

The Nvida 500 series are a lot smaller then the 400 series.. So hopefully it will fit..

Also, I can't find what kind of power supply that computer is using. Might need to get some coverter cables. That video card has to power slots that need to be filled in.

 

[Vinaell]

I already upgraded the power supply to a 500w. and im mostly worried about dimensions of the video card because its a smaller case im noticing the larger video cards wont fit.