hi guys

I NEED HELP !!!!!!!!!!

I have just built a new rig

i7 920
Gigabyte EX58-UD5 (F6 BIOS)
6GB Corsair 1600Mhz
Quattro 1000W PSU
4870 512MB

I also have SAS controller with 10K sas drives which I set up to be in RAID-0 and installed Vista on it. Also put all latest MS updates and have latest drivers / BIOS for all devices.

So basically up to this point, everything works fine, Vista boots ... performs great.

Now ... I plug in any SATA HDD, it wont boot. When I try to plug in my NEW HDDs I also bought (2x640GB WD Green), it boots into Windows, lets me initialize them but I can't format them. It just says formatting but does nothing (this is same for Quick and Normal format). This happens on both the Intel ICH10R or Gigabyte (JMicron) controller. I tried all ports, all possible settings in BIOS, no diff. really dont know

I tried setting in BIOS both AHCI mode (and yes, I installed the correct Vista drivers) and Standard ... also tried Native IDE and NON-Native .... still same problem. Cant format the HDD.

any thoughts ? please help!!!! I am getting desperate! Any help is much appreciated.