Hi I have a 300W ASTEC AA 19130 PSU which I just bought off eBay.
I know how to hot wire an ATX PSU by shorting Green and a Earth.

This new PSU is a server type and I have no IDEA how to hot wire it.
I am not putting this into a computer and I plan on cutting the wiring up to just get what I need which is a power unit to Run-in and Test my Grp12 Slotcar motors.

There is a main plug that has 16 wires in it. 8 Orange on one side and 8 Black on the other.

It has a Push / Pull Switch. (fan will spin for a few seconds then stop when the switch is operated)

The other connectors are.
P1 Black,Black,Yellow,Blue,Red,White.
P2 Red,Red,Red,Grey,Black,Black.
P3 Black,Black,Black,Red,Red,Red.

Molex Blue,Black,Black,Red.

Any help would be appreciated.
Regards Greg