DL380 G7 - P410i - Harddisk not recognized

[dmis]

Hi

DL360 G7 with P410i RAID-Controller.

On the "left side" I have two Harddisks SAS 146GB (PN: 507283-001) installed and configured as Logical Drive 1, which is running fine.

On the "right side" I have added four SAS 1.2TB (PN: 718292) Harddisks.
No LED is showing up, looks as it has no power connected. I'm also not able to eject the harddisks anymore.

Any idea?

Best regards
Rotart

[dmis]

I can see in the SSA Port 1I with 4 slots and Port 2I with 4 Slots, both Case 1.

Firmware Version 6.64
Hardwarerevision C

Controllerstatus OK
Cache-Status OK
Akku-/Condensatorstatus OK

Do I need to purchase a license key for the "Advanced Capacity Expansion"? I hope and don't think so.
As I said, not even the led flashes up on any harddisk.
..and how to eject a disk without power, it is not a physical clamp anymore, only a button?