on, the 4 pin connectors - you want to use a many of those as possible so the load is spread out across each set of wires - not multi connectors from same wire, but 1 connector from each set of wires if possible. Mine had two, so i used 2 from on set of wires, and 1 from the 2nd set of wires, along with the 24pin main connector.
Hope this helps...
Myk