The bottom PCI-64 riser
connector linked with the goldfinger is connected to the motherboard PCIX
slot-6, a completely independent PCIX-64 connection. The top and middle (main)
PCI-32 riser connectors linked with custom length flex cable (another
independent PCI-32 bus connection) and 8-wires paddle link (shared signal) are
connected to the nearby motherboard PCI-32 slots.
For up to 3-slots(1*PCIX-64 and
2*PCI-32 ) expansion of 2 independent PCI buses, such as Supermicro