Fujitsu Primergy TX100 D3009 A-11 PCIe problem

[Nanome]

Hi there

I have problem with motherboard Fujitsu D3009-A11 which is fitted in some kind of server Fujitsu PRIMERGY TX100. I Have problem with PCIe slots.
Motherboard has 4 PCIe slots:
slot 1 PCIe x1
slot 2 PCIe x4
slot 3 PCIe x8
slot 4 PCIe x8
Motherboard I would like to use for mining, but when I plug 4 graphic cards GTX1060, it is recognisioned only in slot 3 and 4.
When I plug old graphic card AMD Radeon HD6450 in to the slot 1 or 2 is working without any problems, even if two GTX are connected to slot 3 and 4. In device manager visible 3 graphic cards.

I would like to connect 4 GTX1060 graphic cards to this motherboards, is it possible that is some kind of lock in BIOS on PCIe slots?

Anyone can help me to solve that PCIe issue? Is not much information about this motherboard on google so I decided to ask for help.

BIOS Dump

  D3009 A-11 dump Bios .bin (Size: 8 MB / Downloads: 4)

Thanks
Jack