Gigabyte Z490M - BIOS Setup; Startup Screen

• When the system is not stable as usual, select the Load Optimized Defaults item to set your system to its
defaults.
• The BIOS Setup menus described in this chapter are for reference only and may differ by BIOS version.
BIOS (Basic Input and Output System) records hardware parameters of the system in the CMOS on the
motherboard. Its major functions include conducting the Power-On Self-Test (POST) during system startup,
saving system parameters and loading operating system, etc. BIOS includes a BIOS Setup program that allows
theusertomodifybasicsystemcongurationsettingsortoactivatecertainsystemfeatures.
When the power is turned off, the battery on the motherboard supplies the necessary power to the CMOS to
keepthecongurationvaluesintheCMOS.
ToaccesstheBIOSSetupprogram,pressthe<Delete>keyduringthePOSTwhenthepoweristurnedon.
ToupgradetheBIOS,useeithertheGIGABYTEQ-Flashor@BIOSutility.
• Q-Flash allows the user to quickly and easily upgrade or back up BIOS without entering the operating
system.
• @BIOSisaWindows-basedutilitythatsearchesanddownloadsthelatestversionofBIOSfromthe
Internet and updates the BIOS.
Chapter 2 BIOS Setup
• BecauseBIOSashingispotentiallyrisky,ifyoudonotencounterproblemsusingthecurrentversion of
BIOS,itisrecommendedthatyounotashtheBIOS.ToashtheBIOS,doitwithcaution.InadequateBIOS
ashingmayresultinsystemmalfunction.
• It is recommended that you not alter the default settings (unless you need to) to prevent system instability
or other unexpected results. Inadequately altering the settings may result in system's failure to boot. If this
occurs,trytocleartheCMOSvaluesandresettheboardtodefaultvalues.(Refertothe"LoadOptimized
Defaults"sectioninthischapterorintroductionsofthebattery/clearCMOSjumperinChapter1forhowto
clear the CMOS values.)
2-1 Startup Screen
The following startup Logo screen will appear when the computer boots.
(SampleBIOSVersion:T0d)
Therearet wodifferentBIOSmodesasfollowsandyoucanusethe<F2>keytoswitchbetweenthetwomodes.
The Classic Setup mode provides detailed BIOS settings. You can press the arrow keys on your keyboard
tomoveamongtheitemsandpress<Enter>toacceptorenterasub-menu.Oryoucanuseyourmouse
to select the item you want. Easy Mode allows users to quickly view their current system information or
to make adjustments for optimum performance. In Easy Mode, you can use your mouse to move through
congurationitems.
Function Keys
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