Hi,   R720XD does not support SATA optical drive, page 32: [URL]   I don't think the setup is possible as the SATA controller is being replaced by PERC controller. You may not be able to detect the SATA connection. 
Hello, I have replaced the optical drive with an ssd hard disc. I want to boot it from ssd. I am trying to activate from bios to find the sata but i can not find it. I have Bios 2.7.0 Can someone help me on that? Thank you Stefanos 
r720xd embedded sata ahci mode