I dont think your attitude is going to make people want to help you.
The performance difference between PCI-E 2.0 and 3.0 isnt massive even with a top of the line card, and you wouldnt simply have "bought a PCI-E 2.0 card to save money" I have a PCI-E 3.0 card in a PCI-E 2.0 board, no PCI-E 2.0 only card would be able to match it.
PCI-E 3.0 cards are backwards compatible with 2.0. If your card isn't running right then it could be faulty. You might be underpowering it. There might be a problem with the motherboard, and so on.
Do you not have another card to test in the board, or any other PCI-E 1.0/2.0/3.0 board to test the card in to ascertain which is at fault?
My attitude was only in response to someone else giving me some.
Forgive me, but I have about 11 threads up on various forums and after spending literally I should think about 100 hours plus, on this issue and not getting anywhere but throwing more money and time down the drain, I get a little frustrated with explaining myself over and over touching on the same points. Granted not everyone has access to all the threads and the most up to date story, so sorry for that
I have successfully tried a GTX 660ti and had it running at pcie 3.0 x16 in primary slot of Mpower board = success
I could not try my card in another pcie 3.0 board as nobody I know has one.
I have tried my Radeon 4870 in the mpower, runs fine at x16 pcie 2.0
My HIS 7950 appears to run fine in pcie 2.0 enabled motherboards, at the full speeds.
I have tried different PSU's, different memory, the most upto date BIOS's available.
Ive looked at cpu pins in the socket.
But the 7950 doesn't run in primary slot at all, and pc wont boot in this setup.
7950 runs at x2 pcie 3.0 in secondary slot only.
And this is the case on 3 separate MSI Mpower boards, and now one brand new Asus maximus v Formula, which also has the most upto date BIOS.
There was a chap from this forum who was kind enough to let me test his GTX 660ti in my board and that told me that the cpu is fine, but then my gpu wont work with it which tells me the gpu is faulty but overclockers RMA department said its fine which leads me wanting to cry myself to sleep at night