I have same motherboard, and same problems with Marvell 🙁 Have you a latest BIOS. It can help. Last time I used Marvell it not dissapear ( RAID Volume ). Latest BIOS is 2831 and it is dated 4/23/2008. It can be found at Intel Download Center. _http://downloadcenter.intel.com/default.aspx
It is not Windows 2008 problem – it is Marvell / Intel problem 🙂
