Thanks for your reply, guys !
Drpino, you showed me a solution i didn't see before.
I'm a bit scared of promise use (infact i've it disabled in the Bios motherboard config).
Do you think put HD on promise controller would be ok, i mean, fully hd functionality with no motherboard overload & "dialogue" problems ?
With an added ide controller shouldn't i have an overall better performance of whatever device i put on it or it's the same (just asking,really don't know)?