Is there a 2 TB Limit using Raid 5?

[mawe]

Trying to set up a sata raid 5 array consisting of 4 times 1 TB Disks (WD1000FYPS) and W2K8 Server (both 32 and 64 bit) the array will always be split into a 2048 MB partition an a 746 TB partition (during installprocess) regardless which driver is used.
So my question to those who know it: Is there a 2 TB limit using sata raid 5 and nforce 630 (ASROCK AliveNF7G-HDReady build in SATA-raid)? Or is there any workaround from preventing the array to split into pieces?

[Seawolf]

I think it needs both BIOS code changes and drivers to go past that, judging by the guys over at the NV forums http://forums.nvidia.com/lofiversion/index.php?t48103.html