PCIe negotiated as x1 instead of x8

Finally, I heard back from Altera Support that PCIe version 6.1 which I was using had a bug. They had asked me to try V8.1. I was going to try it even though tt is easily said than done due to my custom design but then Dell Support responded to my complaint confirming that their PCIe slot on their board supports only either x1 or x16 operation! Now, I guess I need to first look for a system which supports x8 and first try v 6.1 and if that does work then go on to v8.1 I will appreciate if anyone can share his/her experience in this regard.