Gigabyte GA-Z77X-UP5 TH rev. 1.0 User Manual page 75

Step 4:
Load Optimized Defaults on the Save & Exit
so we recommend that you reload BIOS defaults.
Select Yes to load BIOS defaults
Step 5:
Select Save & Exit Setup Yes to save settings to CMOS and exit BIOS
Setup. The procedure is complete after the system restarts.
Unique Features - 74 -