Problem fixed, I had forgotten to connect power supply to the end of the 2nd cable. 
Hello, I have a T110 II with a PERC H200 and 4 drives attached. It is working well. I want to add more drives. I have attached a second cable (P/N 042N7H, same PN as first cable) to the second connector of H200.System does not recognize when a HDD is attached to the second cable.  Is there something to do to enable second connector on H200, or any limitation in server or controller ?Thank you, Frederic
T110 II w PERC H200, more than 4 drives