PCIe goldfingers is linked to the middle PCIE riser slot and sit to the motherboard PCIe x16 slot-6. Top(main) and bottom(share) PCI-32 slots are connected to the motherboard PCI-32 slot-5 and near by slot.
For 1-slot PCIe x16 expansion on motherboard PCIe x16 slot-6 and 2-slots PCI-32, such as Intel SE7525GP2, Supermicro X6DAL Series,X7DAL-E, PDSG4/PDSGE, Tyan S2676, Asus P5AD/P5GD Series, Gigabyte GA-81915P-MF,GA-81915G-MF etc.