There is no "performance and acoustics" on the 7520 boards, only the 5000's.
Secondly, make sure to have the fans plugged in on the correct headers accordingly with the quick start guide (back side)
Also, inputing the Chassis serial number is unimportant, but to select the correct model of chassis is critical when running the FRUSDR.
Also, go to the BIOS, then server management, enable the clear system event log and save changes and reboot.
If the problem persists, pull the System Event log and post it here.
Is the status light on the front (triangle with exclamation mark) solid yellow or blinking yellow?