Dear readers At first i purchased the Radeon 6950 and flashed it to 6970, it was succesfuly done. Now that i've checked the CPU-Z i'm running at 8x pci-e bus speed.. Changed the video card to the main pci-e slot, All went good and well, until i checked its still in 8x.. I'm well informed about the bois, checked it but i'm not 100% sure Any suggestion guys? p.s Got a Asus asus m4a78-e se website said: Expansion Slots 2 x PCIe 2.0 x16 (at x8 mode). Support ATI CrossFireX™ technology 2 x PCIe x1 2 x PCI 2.2 Thanks for helping guys!