nForce4 Storage:
- 4 x SATA 3Gb/s
- 2 x UltraDMA 133/100/66/33
- NVRAID : RAID0, RAID1, RAID 0+1 and JBOD span cross SATA and PATA
Silicon Image 3114R RAID controller:
- 4 x Serial ATA with RAID0, 1, 0+1, 5 (RAID 5 software patch available, no WHQL)
No SATA2 support from the motherboard from what I see, so no.