It is not easy to get a powerful graphics card in a rack server.
Therefore, I bought two of these 1X to 16X PCI-E PCI E Express Extender, on www.aliexpress.com

Please know, that even though there is being used a USB cable to make the connection between the 16X PCI-E GPU PCB and the 1X PCI-E mini PCB that goes in to the motherboard,, this is just a cable,, and do not work with an USB port.

[Affiliate Links]
Link to 1X to 16X PCI-e PCI-e : http://amzn.to/2kVEgo7
Link to ATI Radeon HD 5970 : http://amzn.to/2kB5OmZ
_________________________________________________________________
My PlayHouse is a channel where i will show, what i am working on. I have this house, it is 168 Square Meters / 1808.3ft² and it is full, of half-finished projects.

I love working with heating, insulation, Servers, computers, Datacenter, green power, alternative energy, solar, wind and more. It all costs, but I'm trying to get the most out of my money, and my time.