ted sem si jeste procital manual a pokud to dobre prekladam, tak by to melo jit i s tim 20pinem napajecim

You may use the 20-pin ATX power supply as you like. If you’d like
to use the 20-pin ATX power supply, please plug your power supply
along with pin 1 & pin 13 (refer to the image at the right hand).
There is also a foolproof design on pin 11, 12, 23 & 24 to avoid
wrong installation.