Have you installed the chipset drivers for the motherboard
I have this board and haven't had a problem setting up a RAID array.
But I have seen others with similar problems when moving their RAID 0 array to a new motherboard. Also an array configured with an Intel controller won't work with a NVRAID controller, for example.
So the array was configured on your old board with the NVIDIA nForce 4 Ultra
chipset so you will need to use the black SATA ports and use the NVIDIA nForce 4 SLI
chipset controller to retain consistency.
But also make sure the array settings are the same. Stripe size mainly.