I was not able to resolve the issue, bought two different graphics cards and returned both.
But found some one who managed to do it, unfortunately there is no way to talk to him. Found this on newegg and in the reviews someone named "zampaz" said its little tricky but he didn't explain the trick.
"HIS H545H1GD1 Radeon HD 5450 Silence 1GB 64-bit DDR3 PCI Express x1 Low Profile Video Card with Eyefinity"
Please pass the information if you could resolve it.