Please ignore the above post, it's a duplicate.
OK, Why am I doing this? well I need a couple of bench power supplies and I have these already so I thought I would use them if I could. They are quite powerfull and robust.
When the mains lead is plugged into the power supply there is power on the 24 pin connector (as detailed above), however, I'm assuming that this is low amperage and just for the power supply to communicate with the server (fault lights, fan speed etc..). The LED on the back of the power supply indicates that it is in Standby Mode. The power connector is not the same as an ATX power supply (or a Dell PC). The power supply has two large power connectors (pins) at either end, and 24 pins in the middle (4 rows of six pins). The pins are small, like jumper pins.
The cables in the links in the above posts will not connect to this power supply.
I'm assuming that, like normal ATX PC power supplies, I need to connect PSON to something (VFP, VDC) to get the supply to turn on.
I have read all the documentation on the Dell site that I can find, but nothing so far describes how to get the power supply working outside the chassis. I did find a schematic which shows a 6100 where PSON, VFP, VDC go to the On/OFF button (http://support.dell.com/support/edocs/docs/53861.pdf),on the front of the server. But this is still not enough information for me to get the supplies to power up.
I feel like it should be so easy, just jumper two pins or something, but it's beat me!