Workstation Motherboard has unknown power connectors

[PootsMaster]

I picked up a Thinkstation S20 motherboard recently and i noticed it has an extra 12v AUX connector along with what i think is a 10 pin CPU power connector and a standard 24 pin motherboard power connector. Problem is, i am trying to power this with a normal consumer power supply as i cant find a OEM psu to go with this motherboard. Anyone has experience powering this motherboard or know what to plug in? Thanks a lot in advance!

 

[PootsMaster]

Here are more pictures and the other parts i am going to use:
Xeon E5620
2gb Kingston DDR3 (for now)
Nvidia GT 610 for testing (Planning to use a GTX 750ti)

I have a cooler master 460w power supply , but im not sure if it will be suitable.

Pictures:

 

[alexisaceve]

¿Qué fuente usaste para esa placa base?