DL360e Gen8 Dynamic SmartArray B120i not recognizing SAS disks

Hello everybody,

i bought a HP DL360e Gen8 and 4 SAS 600GB HDD's but don't manage the SmartArray controller to recognize them. I also noticed that the amber lights on the disk caddies are not shining the same on all disks. Some turn off after the initial flashing after insertion. But i highly doubt that the're all broken and testing them one by one brought no success.

 Any help appreciated.

F.H.