@Kevin_Z

thanks Kevin, I can, t instal the drivers because I get error message "can't find device.

Of course  I looked in device manager and it, s never been seen there. It, s just not here to find anywhere on my pc. I tryed it with Ubuntu running from a USB stick but then I also can't find it. But the green led on the bracket is lighting up so it will get power.

I run windows 10 pro, fully up to date

@Kevin_Z 

I tryed every other of the 5 pci-e x1 slots with the same result. Ik borrought a Wlancard from a friend but this card wont be seen either. So i installed an Intel p1000 pro ethernet card and this device wont seen anywhere to. The Graphics card in the pci-e x16 slot works just fine. All the divices attached to the x1 slots will get power, the green led shines, but thats all. There is no way i can find these devices anywhere in my pc. My wlancard is functioning well in my friends pc, who's running Win 10 to. The only difference between his and my pc is het has a 1155 model and i have 1150. We both run an AM eufi-bios in AHCI mode. I also can't find any settings in de bios that might cause this problem.

On my last mobo, an Asus on 1156 infrastucture the wlan card was doing fine and also on my friends newer 1155 board. I bought this "outdated" mobo because i am very sattisfied about the performance with this I5 4590 cpu and 16GB DDR3 memory. So why buy a newer model cpu and board. The 1155 cpu's are still very expensive and my cpu is just 2 years old. So why trow away good hardware if it does what i want with my pc. The 2x8GB ram modules (Corsair Vengeance are less than a year old. PSU is 500W Bronze 80 is already a few years older but by testing the performance every thing looks alright. All pins give the exact output as descriped in the factory settings.

To be sure i placed an other psu with 450W but no results, I even attached the molex cables at the 2 connectors on the mobo, but this is only nessesary if more than 2 devices are installed trough pci-e. The mobo is new and Windows 10 ready.

I think i'm out of options I hope someone knows a possible solution. Ofcourse I can send it back for an RMA but then it will take more than 4 weeks when i get back my mobo and 4 weeks or more without my pc is to much asked.