Well from my experience i can say this board has a couple of issues with sata/raid configurations.

My first problem was 4 satas with 2 of them in raid0 with a sata dvdrw. The raid ones are raptor 36gb and the other 2 were one wd 320gb and one maxtor 300gb. Maxtor disk keep disappearing all the time...don't recognize.

After that i switch to 3 disk, i maintained the 2 raptors in raid0 ports 1&2 and plug a segate 750gb to port 5...this with an asus dvdrw in port 4 (black).

No problems with raid and vista, but i wanted to have a xp partition in segate, so i made a 50gb partition for that on segate.
Everytime i tried to install xp i got bsod before i select my installation partition...

So i tried unplug the sata driver and plug an ide drive...no more problems...

Now i have XP and Vista, both working and no more errors or bsods.

Don't know why but this board is a little buggy with sata ports once raid its enable, maybe its a bios problem.

For me, more than 3 things connected to sata ports and i will have some problem...