PowerEdge M620 doesn't work

Hello,
We have a problem with blade servers M620 (assembled with E5-2670 and DIMM 8x8GB hynix)
We put in the slot mezaninne 57810S-M 10GB daughter card (JVFVR) and riser card management (F5G99).
After insertion into the M1000e chassis; M620 blinking amber.
Chassis Management Control servers shows the state as "Initializing ...".
iDrac for these servers are not accessible, and the M1000e cannot recognize hardware. We cleared NVRAM using jumper on motherboard but it did not help.
Do you have any ideas?
Thank you for help in advance,
Maron