[SOLVED] Adapting an 20+4 pin psu to a Fujitsu 16 pin motherboard

[Mlado53]

So...
My friend is looking to get a new gpu (with external power) and so he needs a new psu with that.
His motherboard(Fujitsu case,mb...) has a 16 pin motherboard header.
It has 6 +12V leads, 6 ground, one for powering it on, one -11V and one grey 26mV cable. *and an empty one
Having a old psu I tryed to adapt it so it could work with the MB but i couldn't find the mV cable so I tryed without it and nothing.
Any solutions?

 

[delaro]

The problem is your missing power, note the lack of 5V and 3V. You could use a power converter or buck transformer to compensate but your adding to a annoying projoct as is.