Thx for still taking care ...
ok, the s/n of my device is:
307454 with colored cables as you can see in the picture
http://img528.imageshack.us/my.php?i...pensnapjq9.jpg
Which hd would be the drive 1?
- red
- green
- yellow
- blue
i have serveral hds here for testing form 20gigs,40gigs, 80gigs, 250gigs, 320gigs and 400gigs.
It does not work - not matter which hd i take 
!
# 4x 400gigs were just installed and was running fine in my box,
- the box was not handle to build a raid5 on it, so i just tired a raid5 with 3x 400gigs and one as single disc!
-hehe, so i was trying if it is possible to resize the raid5 on 4x320gigs (which means that 3x 400gigs hd get resized

)
- this was also working fine.
After some time i feel dissatisfied with this solution because of wasting space so i wanted to go back to my first solutuion: 4x400gigs,
3 in Raid5 and 1 in SINGE DISC mode!!!
But after formating the 4x400gigs discs under windows --- the snapserver does not come up again, and here we are talking about --- hope we can handle it

LED status is: SYSTEM LED: Steady Light --- DISK LED: off ; do not care about 10min-30min running.
thx for your support
patlin