IEI Integration NANO-9453 v1.10 - Manual (Page 193)

NANO-9453 EPIC Motherboard
Page 173
Use the Discard Changes option to discard the changes and remain in the BIOS
configuration setup program.
Load Optimal Defaults
Use the Load Optimal Defaults option to load the optimal default values for each of the
parameters on the Setup menus. F9 key can be used for this operation.
Load Failsafe Defaults
Use the Load Failsafe Defaults option to load failsafe default values for each of the
parameters on the Setup menus. F8 key can be used for this operation.