No sir, most of the settings will revert back to default settings.There currently isn't a way to back up the BIOS settings.
I received my new BIOS Battery for my R900.  I'm just wondering once we power off the server and remove the BIOS battery is the bios going to go back to default?  If so is there a way to backup the BIOS?  There's a ton of settings in the BIOS and I'd ge afraid I missed something if I tried to write it all down.   Thanks
BIOS BACKUP