On this link http://www.evga.com/support/manuals/files/132-CK-NF78.pdf
Please observe page 40 of the manual.
Notes from Manual.
Enter BIOS Setup
The BIOS is the communication bridge between hardware and software.
Correctly setting the BIOS parameters is critical to maintain optimal system
Use the following procedure to verify/change BIOS settings.
1. Power on the computer.
2. Press the Del key when the following message briefly displays at the bottom
of the screen during the Power On Self Test (POST).
Press F1 to continue, DEL to enter Setup.
Pressing Del takes you to the Phoenix-Award BIOS CMOS Setup Utility.
Your key to load Defaults
is the F7
changes and exit, make sure you save the changes.