i think its supposed to go on to a pci slot . so try the one under your vga slot. i have a friend using this , he mounts it under vga
I think it can go anywhere on the back panel where there is an available expansion slot. It does not mount onto the PCI header. If I moved it under the VGA it would be closer to the passive heatsink on the card and should suck heat away and out the vent. I was just hoping that mounted above the card it would still help the VGA but also help disperse the heat from the Northbridge on the MB.