In this case the system would be limited to a 2 TB barrier for bootable units if your option ROM is not able to detect the volume properly (since is an outdated version) and UEFI would need to be enable in the system BIOS. In most cases a system featuring Intel(R) 6 series controllers are required since they have an updated option rom with UEFI support.
I suggest you to check with your motherboard manufacturer for information on how to update your system to support this.
Thank you for your answer. In the meantime I have tried somthing more and I found out that the create button (maybe the hole interface of the software) depends on the hardware. After I have put some older disks (less than 2 TB) in the system, I was able to create an RAID system (with the newly appeared button) just with this new disks. The other ones can only be viewed (but with correct size ~2,7TB ).
And of course I have tried allready to get a new bios, but this isn't possible- it's little bit frustrating.