Abgeklappert The Local PC shops and no one had a solution to my problem. Amazon started up and entered ATX extension and Article 1 hit! Ordered, installed and works. Both plug pages are available as 4-pole and 8-pole to use. So who am PSU has 4 Pin and on the mainboard also, can only use a part.
I have 8 pin from the power supply, and also connected to the motherboard only 4 pins. Just awesome. I buy again.
1 star deduction is available for the sleeves. Although these are in matte black, but really scratchy and stiff.