Asus PRIME A320M-C R2.0 User manual

Motherboard
PRIME A320M-C R2.0

ii
E12809
First Edition
April 2017
Copyright © 2017 ASUSTeK COMPUTER INC. All Rights Reserved.
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permission of ASUSTeK COMPUTER INC. (“ASUS”).
Product warranty or service will not be extended if: (1) the product is repaired, modied or altered, unless
such repair, modication of alteration is authorized in writing by ASUS; or (2) the serial number of the
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Where the applicable license entitles you to the source code of such software and/or other additional data,
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iii
Contents
Safety information ...................................................................................... iv
About this guide ......................................................................................... iv
Package contents ....................................................................................... vi
PRIME A320M-C R2.0 specications summary ....................................... vi
Chapter 1: Product introduction
Motherboard overview ............................................................................. 1-1
Central Processing Unit (CPU)................................................................ 1-7
System memory........................................................................................ 1-8
Chapter 2: BIOS information
BIOS setup program................................................................................. 2-1
EZ Mode..................................................................................................... 2-2
Advanced Mode ........................................................................................ 2-3
Exit menu................................................................................................... 2-4
Appendix
Notices.......................................................................................................A-1

iv
Safety information
Electrical safety
• To prevent electrical shock hazard, disconnect the power cable from the electrical outlet
before relocating the system.
• When adding or removing devices to or from the system, ensure that the power cables
for the devices are unplugged before the signal cables are connected. If possible,
disconnect all power cables from the existing system before you add a device.
• Before connecting or removing signal cables from the motherboard, ensure that all
power cables are unplugged.
• Seek professional assistance before using an adapter or extension cord. These devices
could interrupt the grounding circuit.
• Ensure that your power supply is set to the correct voltage in your area. If you are not
sure about the voltage of the electrical outlet you are using, contact your local power
company.
• If the power supply is broken, do not try to x it by yourself. Contact a qualied service
technician or your retailer.
Operation safety
• Before installing the motherboard and adding components, carefully read all the manuals
that came with the package.
• Before using the product, ensure all cables are correctly connected and the power
cables are not damaged. If you detect any damage, contact your dealer immediately.
• To avoid short circuits, keep paper clips, screws, and staples away from connectors,
slots, sockets and circuitry.
• Avoid dust, humidity, and temperature extremes. Do not place the product in any area
where it may be exposed to moisture.
• Place the product on a stable surface.
• If you encounter technical problems with the product, contact a qualied service
technician or your retailer.
About this guide
This user guide contains the information you need when installing and conguring the
motherboard.
How this guide is organized
This guide contains the following parts:
• Chapter 1: Product introduction
This chapter describes the features of the motherboard and the new technology it
supports. It includes descriptions of the switches, jumpers, and connectors on the
motherboard.
• Chapter 2: BIOS information
This chapter discusses changing system settings through the BIOS Setup menus.

v
Where to nd more information
Refer to the following sources for additional information and for product and software
updates.
1. ASUS websites
The ASUS website provides updated information on ASUS hardware and software
products. Refer to the ASUS contact information.
2. Optional documentation
Your product package may include optional documentation, such as warranty yers,
that may have been added by your dealer. These documents are not part of the
standard package.
Conventions used in this guide
To ensure that you perform certain tasks properly, take note of the following symbols used
throughout this manual.
DANGER/WARNING: Information to prevent injury to yourself when
completing a task.
CAUTION: Information to prevent damage to the components when
completing a task
IMPORTANT: Instructions that you MUST follow to complete a task.
NOTE: Tips and additional information to help you complete a task.
Typography
Bold text Indicates a menu or an item to select.
Italics Used to emphasize a word or a phrase.
<Key> Keys enclosed in the less-than and greater-than sign
means that you must press the enclosed key.
Example: <Enter> means that you must press the Enter or
Return key.
<Key1> + <Key2> + <Key3> If you must press two or more keys simultaneously, the key
names are linked with a plus sign (+).

vi
PRIME A320M-C R2.0 specications summary
(continued on the next page)
Package contents
Check your motherboard package for the following items.
Motherboard ASUS PRIME A320M-C R2.0 motherboard
Cables 2 x Serial ATA 6.0 Gb/s cables
Accessories 1 x I/O Shield
1 x M.2 Screw Package
Application DVD 1 x Support DVD
Documentation 1 x User Manual
If any of the above items is damaged or missing, contact your retailer.
CPU
AM4 socket for AMD Ryzen™ / 7th Generation A-series / Athlon™ processors
Supports CPU up to 8 cores*
* Due to CPU limitation, CPU cores supported vary by processor.
** Refer to www.asus.com for AMD CPU support list.
Chipset AMD A320 Chipset
Memory
AMD Ryzen™ Processors
2 x DIMMs, max. 32GB, DDR4 2666/2400/2133 MHz, non-ECC, un-buffered memory
AMD 7th Generation A-series/Athlon™ Processors
2 x DIMMs, max. 32GB, DDR4 2400/2133 MHz, non-ECC, un-buffered memory
Dual-channel memory architecture
* Refer to www.asus.com for the latest Memory QVL (Qualied Vendors List).
Graphics
Integrated AMD Radeon™ R Series Graphics in the 7th Generation A-Series APU
Multi-VGA output support: HDMI, DVI-D and D-Sub ports
- Supports HDMI 1.4b with maximum resolution of 4096 x 2160 @24Hz / 2560 x
1600 @60Hz
- Supports DVI-D with maximum resolution of 1920 x 1200 @60Hz
- Supports D-Sub with maximum resolution of 1920 x 1200 @60Hz
- Maximum shared memory of 2048 MB
Expansion
slots
AMD Ryzen™ Processors
1 x PCI Express 3.0/2.0 x16 slot (max.@x16 mode)
AMD 7th Generation A-series/Athlon™ Processors
1 x PCI Express 3.0/2.0 x16 slot (max.@x8 mode)
AMD A320 Chipset
2 x PCI Express 2.0 x1 slots
1 x PCI slot
LAN Realtek®8111H Gigabit LAN Controller

vii
PRIME A320M-C R2.0 specications summary
(continued on the next page)
Storage
AMD Ryzen™ Processors
- 1 x M.2 socket 3 with M Key, Type 2242/2260/2280 (PCIE 3.0 x4 and SATA
modes) storage devices support
AMD 7th Generation A-series/Athlon™ Processors
- 1 x M.2 socket 3 with M Key, Type 2242/2260/2280 (SATA mode) storage
devices support
AMD A320 Chipset
- 4 x Serial ATA 6.0 Gb/s connectors with RAID 0, RAID 1, and RAID 10 support
Audio
Realtek® ALC 887-VD2 8-Channel High Denition Audio CODEC
* Use a chassis with HD audio module in the front panel to support an 8-channel audio
output.
USB 6 x USB 3.0 / 2.0 ports (4 ports at the rear panel; 2 ports at mid-board)
6 x USB 2.0 / 1.1 ports (2 ports at the rear panel; 4 ports at mid-board)
ASUS unique
features
Dependable Stability
ASUS 5X PROTECTION II
- ASUS LANGuard - Surge-protected networking
- ASUS Overvoltage Protection - World-class circuit-protecting power design
- ASUS DRAM Overcurrent Protection - Enhanced DRAM overcurrent protection
- ASUS Stainless Steel Back I/O - 3X more durable
- ESD Guards - Electrostatic discharge protection
Superb performance
UEFI BIOS
- Most advanced options with fast response time
Easy PC DIY
Safe motherboard mounting
- Component-free areas to minimize damage risk
Q-Design
- ASUS Q-DIMM
- ASUS Q-Slot
UEFI BIOS EZ Mode - featuring friendly graphics user interface
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 3
Optimized Cooling
- Stylish Fanless Design: Chipset Heat-sink solution
- ASUS Fan Xpert
Rear panel
I/O ports
1 x PS/2 keyboard (purple)
1 x PS/2 mouse port (green)
1 x HDMI port
1 x DVI-D port
1 x D-Sub port
1 x COM port
1 x LAN (RJ-45) port
4 x USB 3.0/2.0 ports
2 x USB 2.0/1.1 ports
3 x Audio jacks support 8-channel audio output

viii
PRIME A320M-C R2.0 specications summary
Internal
connectors
2 x USB 2.0/1.1 connectors support additional 4 USB 2.0/1.1 ports
1 x USB 3.0 connector supports additional 2 USB 3.0 ports
1 x M.2 socket 3 for M Key and type 2242/2260/2280 devices
4 x SATA 6.0Gb/s connectors
1 x 14-1 pin TPM connector
1 x COM connector
1 x Parallel connector
1 x CPU Fan connector
2 x Chassis Fan connector (Support DC & PWM mode)
1 x Front panel audio connector
1 x 24-pin EATX Power connector
1 x 4-pin ATX 12V Power connector
1 x 2-pin Clear CMOS header
1 x System Panel connector
1 x Chassis intrusion connector
1 x Speaker connector
BIOS features
128 Mb Flash ROM, UEFI AMI BIOS, PnP, DMI3.0, WfM2.0, SM BIOS 3.0,
ACPI 6.1, Multi-language BIOS, ASUS EZ Flash 3, ASUS CrashFree BIOS 3,
My Favorites, Last Modied log, F12 PrintScreen, ASUS DRAM SPD (Serial
Presence Detect) memory information, F6 Qfan Control
Manageability WfM 2.0, DMI 3.0, WOL by PME, PXE
Support DVD
Drivers
ASUS utilities
ASUS Update
Anti-virus software (OEM version)
OS support Windows®10 (64-bit)
Form factor uATX form factor: 9.6 in. x 9.3 in. (24.4 cm x 23.6 cm)
Specications are subject to change without notice.

ASUS PRIME A320M-C R2.0 1-1
PRIME A320M-C R2.0
PCI1
PCIEX16
PCIEX1_1
PCIEX1_2
CLRTC
SPEAKER
CHASSIS
USB3_12
TPM
LPT
COM2
AAFP
EATXPWR
CHA_FAN2
CHA_FAN1
CPU_FAN
BATTERY
Super
I/O
ALC
887
ASM
1083
DIGI
+VRM
24.4cm(9.6in)
SOCKET AM4
AMD®
A320
Realtek
8111H
DDR4 DIMM_A1 (64bit, 288-pin module)
2280 2260 2242
M.2(SOCKET3)
DDR4 DIMM_B1 (64bit,288-pin module)
AUDIO
KBMS
HDMI
LAN_USB12
USB3_3-6
23.6cm(9.3in)
SATA6G_3 SATA6G_4SATA6G_1 SATA6G_2
DVI VGA
COM1
ATX12V
F_PANEL
USB56USB34
13 22
1
4
111213
9
10
8
1
5
7
16
18
6
15 14
19
18
17
Product introduction
1
Motherboard overview
• Unplugthepowercordfromthewallsocketbeforetouchinganycomponent.
• Beforehandlingcomponents,useagroundedwriststraportouchasafelygrounded
objectorametalobject,suchasthepowersupplycase,toavoiddamagingthemdue
tostaticelectricity.
• Beforeyouinstallorremoveanycomponent,ensurethattheATXpowersupplyis
switchedofforthepowercordisdetachedfromthepowersupply.Failuretodoso
maycauseseveredamagetothemotherboard,peripherals,orcomponents.
• Unplugthepowercordbeforeinstallingorremovingthemotherboard.Failuretodoso
cancauseyouphysicalinjuryanddamagetomotherboardcomponents.
Place this
side towards
the rear of the
chassis
ScantheQRcodetogetthedetailedpindenitions.

1-2 Chapter 1: Product introduction
ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)
CorrectlyorienttheATXpowersupplyplugsintotheseconnectorsandpushdown
rmlyuntiltheconnectorscompletelyt.
• Forafullyconguredsystem,werecommendthatyouuseapowersupplyunit
(PSU)thatcomplieswithATX12VSpecication2.0(orlaterversion)andprovides
aminimumpowerof300W.
• Ifyouareuncertainabouttheminimumpowersupplyrequirementforyoursystem,
refertotheRecommendedPowerSupplyWattageCalculatorathttp://support.
asus.com/PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-usfor
details.
CPU and chassis fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN1/2)
Connectthefancablestothefanconnectorsonthemotherboard,ensuringthatthe
blackwireofeachcablematchesthegroundpinoftheconnector.
Donotforgettoconnectthefancablestothefanconnectors.Insufcientairowinside
thesystemmaydamagethemotherboardcomponents.Thesearenotjumpers!Donot
placejumpercapsonthefanconnectors!TheCPU_FANconnectorsupportsaCPUfan
ofmaximum2A(24W)fanpower.
Onlythe4-pinCPUfansupportstheASUSFanXpertfeature.
AMD AM4 CPU socket
ThemotherboardcomeswithanAM4socketdesignedforAMDRyzen™/7th
GenerationA-series/Athlon™processorsupto8-core.
Formoredetails,refertoCentral Processing Unit (CPU).
DDR4 DIMM slots
Install2GB,4GB,8GB,and16GB,unbufferedandnon-ECCDDR4DIMMsinto
theseDIMMsockets.
Formoredetails,refertoSystem memory.
Serial port connector (10-1 pin COM2)
Thisconnectorisforaserial(COM)port.Connecttheserialportmodulecableto
thisconnector,theninstallthemoduletoaslotopeningatthebackofthesystem
chassis.
LPT connector (26-1 pin LPT)
TheLPT(LinePrintingTerminal)connectorsupportsdevicessuchasaprinter.
LPTstandardizesasIEEE1284,whichistheparallelportinterfaceonIBMPC-
compatiblecomputers.

ASUS PRIME A320M-C R2.0 1-3
Clear RTC RAM (2-pin CLRTC)
ThisheaderallowsyoutocleartheCMOSRTCRAMdataof
thesystemsetupinformationsuchasdate,time,andsystem
passwords.
To erase the RTC RAM:
1. TurnOFFthecomputerandunplugthepowercord.
2. Useametalobjectsuchasascrewdrivertoshortthetwo
pins.
3. PlugthepowercordandturnONthecomputer.
4. Holddownthe<Del>keyduringthebootprocessand
enterBIOSsetuptore-enterdata.
CLRTC
+3V_BAT GND
PIN 1
Ifthestepsabovedonothelp,removetheonboardbatteryandshortthetwopinsagain
tocleartheCMOSRTCRAMdata.AfterclearingtheCMOS,reinstallthebattery.
TPM connector (14-1 pin TPM)
ThisconnectorsupportsaTrustedPlatform
Module(TPM)system,whichcansecurely
storekeys,digitalcerticates,passwords
anddata.ATPMsystemalsohelps
enhancenetworksecurity,protectsdigital
identities,andensuresplatformintegrity.
TPM
PIN 1
+3VSB
S_PCIRST#_TBD
GND
C_PCICLK_TPM
+3V
+3V
F_CLKRUN
F_SERIRQ
F_FRAME#
F_LAD3
F_LAD2
F_LAD1
F_LAD0
M.2 socket 3
ThesesocketsallowyoutoinstallM.2(NGFF)SSDmodules.
M.2(SOCKET3)
• ForAMDRyzen™Processors,theM.2(SOCKET3)supportsPCIE3.0x4and
SATAmodeMKeydesignandtype2242/2260/2280storagedevices.
• ForAMD7thGenerationA-series/Athlon™Processors,theM.2(SOCKET3)
supportsSATAmodeMKeydesignandtype2242/2260/2280storagedevices.
TheM.2SSDmoduleispurchasedseparately.

1-4 Chapter 1: Product introduction
Front panel audio connector (10-1 pin AAFP)
Thisconnectorisforachassis-mountedfrontpanelaudioI/Omodulethatsupports
eitherHDAudioorlegacyAC`97audiostandard.Connectoneendofthefront
panelaudioI/Omodulecabletothisconnector.
• Werecommendthatyouconnectahigh-denitionfrontpanelaudiomoduletothis
connectortoavailofthemotherboard’shigh-denitionaudiocapability.
• Ifyouwanttoconnectahigh-denitionfrontpanelaudiomoduletothisconnector,
settheFront Panel TypeitemintheBIOSsetupto[HDAudio].Ifyouwantto
connectanAC’97frontpanelaudiomoduletothisconnector,settheitemto
[AC97].Bydefault,thisconnectorissetto[HDAudio].
Serial ATA 6.0Gb/s connectors (7-pin SATA6G_1~4)
TheseconnectorsconnecttoSerialATA6.0Gb/sharddiskdrivesviaSerialATA
6.0Gb/ssignalcables.
System panel connector (10-1 pin F_PANEL)
Thisconnectorsupportsseveralchassis-mountedfunctions.
Speaker connector (4-pin SPEAKER)
This4-pinconnectorisforthechassis-mountedsystemwarningspeaker.The
speakerallowsyoutohearsystembeepsandwarnings.
USB 3.0 connector (20-1 pin USB3_12)
ConnectaUSB3.0moduletothisconnectorforadditionalUSB3.0frontorrear
panelports.ThisconnectorcomplieswithUSB3.0specicationsandprovides
fasterdatatransferspeedsofupto5Gbps,fasterchargingtimeforUSB-
chargeabledevices,optimizedpowerefciency,andbackwardcompatibilitywith
USB2.0.
USB 2.0 connectors (10-1 pin USB34, USB56)
ConnecttheUSBmodulecabletoanyoftheseconnectors,theninstallthemodule
toaslotopeningatthebackofthesystemchassis.TheseUSBconnectorscomply
withUSB2.0specicationsandsupportupto480Mbpsconnectionspeed.
Chassis intrusion header (4-1 pin CHASSIS)
Thisconnectorisforachassis-mountedintrusiondetectionsensororswitch.
Connectoneendofthechassisintrusionsensororswitchcabletothisconnector.
Thechassisintrusionsensororswitchsendsahigh-levelsignaltothisconnector
whenachassiscomponentisremovedorreplaced.Thesignalisthengenerated
asachassisintrusionevent.
Thechassisintrusiondetectionfeatureisdisabledbydefault.Toenableit,setthe
Chassis Intrude Detect SupportitemintheBIOSto[On].

ASUS PRIME A320M-C R2.0 1-5
PCI slot
ThePCIslotsupportscardssuchasaLANcard,SCSIcard,USBcard,andother
cardsthatcomplywithPCIspecications.
PCI Express 2.0 x1 slots
ThismotherboardsupportsPCIExpress2.0x1networkcards,SCSIcards,and
othercardsthatcomplywiththePCIExpressspecications
PCI Express 3.0/2.0 x16 slot
ThismotherboardsupportsPCIExpressx16networkcards,SCSIcards,andother
cardsthatcomplywiththePCIExpressspecications.
DuetoCPUlimitation,PCIExpress3.0/2.0x16slotsupportedvariesbyprocessor.
1. PS/2 Mouse port (green).ThisportisforaPS/2mouse.
2. Video Graphics Adapter (VGA) port.This15-pinportisforaVGAmonitororother
VGA-compatibledevices.
3. Serial port.This9-pinCOMportisforpointingdevicesorotherserialdevices.
4. LAN (RJ-45) port.ThisportallowsGigabitconnectiontoaLocalAreaNetwork(LAN)
throughanetworkhub.
Rear panel connectors
2 3 5 64
789
1
12 1011
LAN port
Speed
LED
Activity Link
LED
LAN port LED indications
Activity/Link LED Speed LED
Status Description Status Description
OFF Nolink OFF 10Mbpsconnection
ORANGE Linked ORANGE 100Mbpsconnection
BLINKING Dataactivity GREEN 1Gbpsconnection
5. Line In port (light blue).Thisportconnectstothetape,CD,DVDplayer,orother
audiosources.

1-6 Chapter 1: Product introduction
6. Line Out port (lime).Thisportconnectstoaheadphoneoraspeaker.Inthe2.1,4.1,
5.1and7.1-channelcongurations,thefunctionofthisportbecomesFrontSpeaker
Out.
7. Microphone port (pink).Thisportconnectstoamicrophone.
Refertotheaudiocongurationtableforthefunctionoftheaudioportsin2.1,4.1,5.1,or
7.1-channelconguration.
Audio 2.1, 4.1, 5.1, or 7.1-channel conguration
Port Headset
2.1-channel 4.1-channel 5.1-channel 7.1-channel
LightBlue(Rearpanel) LineIn RearSpeakerOut RearSpeaker
Out
RearSpeaker
Out
Lime(Rearpanel) LineOut FrontSpeaker
Out
FrontSpeaker
Out
FrontSpeaker
Out
Pink(Rearpanel) MicIn MicIn Bass/Center Bass/Center
Lime(Frontpanel) - - - SideSpeakerOut
To congure a 7.1-channel audio output:
 UseachassiswithHDaudiomoduleinthefrontpaneltosupporta7.1-channelaudio
output.
8. USB 2.0 ports.These4-pinUniversalSerialBus(USB)portsareforUSB2.0/1.1
devices.
9. USB 3.0 ports.These9-pinUniversalSerialBus(USB)portsareforUSB3.0/2.0
devices.
• USB3.0devicescanonlybeusedasdatastorageonly.
• DuetothedesignofAMDAM4serieschipset,allUSBdevicesconnectedtotheUSB
2.0andUSB3.0portsarecontrolledbythexHCIcontroller.
10. HDMI port. ThisportisforaHigh-DenitionMultimediaInterface(HDMI)connector,
andisHDCPcompliantallowingplaybackofHDDVD,Blu-Ray,andotherprotected
content.
11.DVI-D port.ThisportisforanyDVI-Dcompatibledevice.
DVI-DcannotbeconvertedtooutputfromRGBSignaltoCRTandisnotcompatiblewith
DVI-I.
12. PS/2 Keyboard port (purple).ThisportisforaPS/2keyboard.

ASUS PRIME A320M-C R2.0 1-7
Central Processing Unit (CPU)
ThemotherboardcomeswithanAM4socketdesignedforAMD
Ryzen™/7thGenerationA-series/Athlon™processorsupto8-core.
TheAM4sockethasadifferentpinoutfromtheFM2+/FM2socket.Ensurethatyouusea
CPUdesignedfortheAM4socket.TheCPUtsinonlyonecorrectorientation.DONOT
forcetheCPUintothesockettopreventbendingthepinsanddamagingtheCPU!
Installing the CPU
UnplugallpowercablesbeforeinstallingtheCPU.
ApplytheThermalInterfaceMaterialtotheCPUheatsinkandCPUbeforeyouinstallthe
heatsinkandfanifnecessary.
1
3
2
4

1-8 Chapter 1: Product introduction
System memory
Overview
ThismotherboardcomeswithtwoDoubleDataRate4(DDR4)DualInlineMemoryModule
(DIMM)sockets.ADDR4moduleisnotcheddifferentlyfromaDDR,DDR2,orDDR3module.
DONOTinstallaDDR,DDR2,orDDR3memorymoduletotheDDR4slot.
Channel Sockets
ChannelA DIMM_A1
ChannelB DIMM_B1
• YoumayinstallvaryingmemorysizesinChannelAandChannelB.Thesystem
mapsthetotalsizeofthelower-sizedchannelforthedual-channelconguration.Any
excessmemoryfromthehigher-sizedchannelisthenmappedforsingle-channel
operation.
• AlwaysinstalltheDIMMSwiththesameCASLatency.Foranoptimumcompatibility,
werecommendthatyouinstallmemorymodulesofthesameversionordatacode
(D/C)fromthesamevendor.Checkwiththevendortogetthecorrectmemory
modules.
• ThismotherboarddoesnotsupportDIMMsmadeupof512Mb(64MB)chipsorless.
VisittheASUSwebsiteatwww.asus.comforthelatestQVL.
DIMM_A1
DIMM_B1
Installing a DIMM
12
To remove a DIMM
B
A
B
A
A
Recommended memory congurations

BIOS information
2
• ScantheQRcodetoviewtheBIOSupdateguide.
• BeforeusingtheASUSCrashFreeBIOS3utility,renamethe
BIOSleintheremovabledeviceintoA320MCR2.CAP.
BIOS setup program
UsetheBIOSSetupprogramtoupdatetheBIOSorcongureitsparameters.TheBIOS
screensincludenavigationkeysandbriefonlinehelptoguideyouinusingtheBIOSSetup
program.
Entering BIOS Setup at startup
To enter BIOS Setup at startup:
Press<Delete>or<F2>duringthePower-OnSelfTest(POST).Ifyoudonotpress<Delete>
or<F2>,POSTcontinueswithitsroutines.
Entering BIOS Setup after POST
To enter BIOS Setup after POST:
• Press<Ctrl>+<Alt>+<Del>simultaneously.
• Presstheresetbuttononthesystemchassis.
• Pressthepowerbuttontoturnthesystemoffthenbackon.Dothisoptiononlyifyou
failedtoenterBIOSSetupusingthersttwooptions.
Usingthepowerbutton,resetbutton,orthe<Ctrl>+<Alt>+<Del>keystoforceresetfroma
runningoperatingsystemcancausedamagetoyourdataorsystem.Werecommendyou
alwaysshutdownthesystemproperlyfromtheoperatingsystem.
• TheBIOSsetupscreensshowninthissectionareforreferencepurposesonly,and
maynotexactlymatchwhatyouseeonyourscreen.
• VisittheASUSwebsiteatwww.asus.comtodownloadthelatestBIOSleforthis
motherboard.
• IfthesystembecomesunstableafterchanginganyBIOSsetting,loadthedefault
settingstoensuresystemcompatibilityandstability.SelecttheLoad Optimized
DefaultsitemundertheExitmenuorpresshotkeyF5.
• IfthesystemfailstobootafterchanginganyBIOSsetting,trytocleartheCMOSand
resetthemotherboardtothedefaultvalue.SeesectionMotherboard overviewfor
informationonhowtoerasetheRTCRAM.
BIOS menu screen
TheBIOSsetupprogramcanbeusedundertwomodes:EZ ModeandAdvanced Mode.
Press<F7>tochangebetweenthetwomodes.
ASUS PRIME A320M-C R2.0 2-1

EZ Mode
Bydefault,theEZModescreenappearswhenyouentertheBIOSsetupprogram.TheEZ
Modeprovidesyouanoverviewofthebasicsysteminformation,andallowsyoutoselectthe
displaylanguage,systemperformancemode,fanproleandbootdevicepriority.Toaccess
theAdvancedMode,clickAdvanced Mode(F7)orpress<F7>.
ThedefaultscreenforenteringtheBIOSsetupprogramcanbechanged.
Thebootdeviceoptionsvarydependingonthedevicesyouinstalledtothesystem.
Saves the changes
and resets the
system
Selects the display language of
the BIOS setup program
Displays the CPU/motherboard
temperature, CPU voltage output, CPU/
chassis fan speed, and SATA information
Displays the
Advanced mode
menus
Selects the boot
device priority
Shows the
bootable
devices
Search on FAQs
Loads optimized default
settings
Displays the CPU Fan’s speed. Click
the button to manually tune the fans
2-2 Chapter 2: Getting started

Conguration elds
Menu bar
General helpSub-menu item
Menu items Last modied
settings
Language Hot Keys
MyFavorite Q-Fan control
Goes back to EZ
Mode
Displays the CPU temperature, CPU
and memory voltage output
Advanced Mode
TheAdvancedModeprovidesadvancedoptionsforexperiencedend-userstocongurethe
BIOSsettings.ThegurebelowshowsanexampleoftheAdvanced Mode.Refertothe
followingsectionsforthedetailedcongurations.
ToaccesstheEZMode,clickEzMode(F7)orpress<F7>.
Popup window
Search on FAQs
ASUS PRIME A320M-C R2.0 2-3

Load Optimized Defaults
ThisoptionallowsyoutoloadthedefaultvaluesforeachoftheparametersontheSetup
menus.Whenyouselectthisoptionorifyoupress<F5>,aconrmationwindowappears.
SelectOKtoloadthedefaultvalues.
Save Changes & Reset
Onceyouarenishedmakingyourselections,choosethisoptionfromtheExitmenuto
ensurethevaluesyouselectedaresaved.Whenyouselectthisoptionorifyoupress<F10>,
aconrmationwindowappears.SelectOKtosavechangesandexit.
Discard Changes and Exit
ThisoptionallowsyoutoexittheSetupprogramwithoutsavingyourchanges.Whenyou
selectthisoptionorifyoupress<Esc>,aconrmationwindowappears.SelectOKtodiscard
changesandexit.
Launch EFI Shell from USB drives
ThisoptionallowsyoutoattempttolaunchtheEFIShellapplication(shellx64.e)fromoneof
theavailableUSBdevices.
Exit menu
TheExitmenuitemsallowyoutoloadtheoptimaldefaultvaluesfortheBIOSitems,and
saveordiscardyourchangestotheBIOSitems.
Search on FAQ
MoveyourmouseoverthisbuttontoshowaQRcode.ScanthisQRcodewithyourmobile
devicetoconnecttotheASUSBIOSFAQwebpage.YoucanalsoscantheQRcodebelow.
2-4 Chapter 2: Getting started