Repurpose or retire from the LLC didn't reset the BIOS or iDRAC even though I selected for it to reset them, I even drained flea power once it powered off. When I booted back up all of the BIOS and iDRAC settings where just as they were previously. I accessed the BIOS from the LLC and from within the BIOS settings I chose to reset to defaults and then did the same for iDRAC, once it rebooted it came back up with all settings back to defaults. I then changed the BIOS settings and rebooted, my new settings persisted after a reboot, did the same thing with iDRAC and again settings persisted after reboot, finally rebooted to the OS and all was well. TL;DR: Reporpose/retire from LLC did nothing, loaded LLC, reset BIOS and iDRAC to defaults, rebooted, changed BIOS as needed, rebooted, changed iDRAC as needed, rebooted and everything was fixed.
I have 3 identical R720XD servers, but on one no matter what I do the Thermal settings always revert back to Fan Offset with High Offset after rebooting, causing the fans to spin at 100% all the time. I have tried hard resetting iDRAC including holding the power button for 30 seconds with the server unplugged, I have tried every possible combination of Thermal settings, I have tried multiple iDRAC firmware revisions. I would like some assistance in determining what is wrong with the server. 
R720XD iDRAC Thermal Settings not saving