low resistance wire between linear PSU and P4 / picoPSU on P24
Picture 1: Standard P4 extension cable with 18AWG wire. Much to my surprise, using wire with a much lower resistance than this standard 18AWG wire (6AWG or similar low resistance wire), does sound much better !! Do try this at home and report your findings back to the forum. The best solution would be to solder the low resistance wire directly to the metal-connectors inside the plastic plug. But I don't manage / don't know how, to get the metal-connectors out of the plastic plug.
picture 2: Preparation: stripping and placing heat-shrink tube. Too prevent short-cut between the plus (+) (yellow/brown) and GRND (black/bleu) wires, after the soldering is done, the wires have to be isolated from each other. If you like too use heat-shrink tubing for that, dont forget to put the heat-shrink tubes arround the bleu and brown wires in this stage !
Picture 3: Wires 'inserted' to each other.
Picture 4: For easy soldering, both wires are pulled together with extra an wire arround, tightend with a 'shoestring knot'. Make the knot with your fingers. For tightening the knot, your fingers will slip of the wire while pulling the wire. For tightening the knot appropriately, use 2 tongs to pull the wire and thighten the knot appropriately.
Picture 5: both wires soldered. (Use soldering iron with enough power)
Picture 6: Continu with other 3 wires in the same way.
Picture 7: All 4 wires soldered and ready to be isolated. To prevent shortcut, the plus (+) wires (yellow/brown) and grnd (-) wires (black/bleu) now have to be isolated from each other. If you forgot too place heat-shrink tubing around the bleu and brown wires at the beginning (like I did), you can also isolate the + and the - wires from each other in this stage, by wrapping isolationtape separately arround the plus (+) and GRND (-) wires.
Picture 8: 'Low resistance' P4 extension cable ready. Please do try the use of low resistance wire. It does sounds MUCH (!) better and report your findings at the forum.