Gigabyte C246N-WU2 Owner's manual

Brand: Gigabyte

Model: C246N-WU2

Type: Owner's manual

For more product details, please visit GIGABYTE's website.

To reduce the impacts on global warming, the packaging materials of this

product are recyclable and reusable. GIGABYTE works with you to protect the

environment.

C246N-WU2

User's Manual

Rev. 1002

12ME-246NWU2-1002R

The trademarks mentioned in this manual are legally registered to their respective owners.

Disclaimer

Information in this manual is protected by copyright laws and is the property of GIGABYTE.

Changes to the specications and features in this manual may be made by GIGABYTE without prior notice.

No part of this manual may be reproduced, copied, translated, transmitted, or published in any form or

by any means without GIGABYTE's prior written permission.

In order to assist in the use of this product, carefully read the User's Manual.

For product-related information, check on our website at: https://www.gigabyte.com

Identifying Your Motherboard Revision

The revision number on your motherboard looks like this: "REV: X.X." For example, "REV: 1.0" means

the revision of the motherboard is 1.0. Check your motherboard revision before updating motherboard

BIOS, drivers, or when looking for technical information.

Example:

Motherboard

C246N-WU2

Oct. 31, 2019

Motherboard

C246N-WU2

- 3 -

Table of Contents

C246N-WU2 Motherboard Layout ...................................................................................4

Chapter 1 Hardware Installation .....................................................................................5

1-1 Installation Precautions .................................................................................... 5

1-2 ProductSpecications ...................................................................................... 6

1-3 Installing the CPU ............................................................................................ 9

1-4 Installing the Memory ....................................................................................... 9

1-5 Installing an Expansion Card ......................................................................... 10

1-6 Back Panel Connectors .................................................................................. 10

1-7 Internal Connectors ........................................................................................ 12

Chapter 2 BIOS Setup ..................................................................................................20

2-1 Startup Screen ............................................................................................... 20

2-2 The Main Menu .............................................................................................. 21

2-3 M.I.T. .............................................................................................................. 22

2-4 System ........................................................................................................... 28

2-5 BIOS ............................................................................................................... 29

2-6 Peripherals ..................................................................................................... 32

2-7 Chipset ........................................................................................................... 35

2-8 Power ............................................................................................................. 37

2-9 Save & Exit ..................................................................................................... 39

Chapter 3 Appendix ......................................................................................................40

3-1 ConguringaRAIDSet .................................................................................. 40

3-2 Installing an Intel® Optane™ Memory .............................................................. 42

3-3 DriversInstallation .......................................................................................... 43

RegulatoryStatements .............................................................................................. 44

Contact Us ................................................................................................................ 48

(Note) The chip is on the back of the motherboard.

- 4 -

C246N-WU2 Motherboard Layout

* The box contents above are for reference only and the actual items shall depend on the product package you

obtain. The box contents are subject to change without notice.

Box Contents

5C246N-WU2 motherboard 5Four SATA cables

5Motherboard driver disc 5I/O Shield

5User's Manual

CPU_FAN

ATX

F_AUDIO

DDR4_B1

DDR4_A1

BAT

Intel® C246

M_BIOS

LGA1151

F_USB30

iTE®

Super I/O

TPM

SATA3

0 1 2

LINE_OUT

SYS_FAN1

SPDIF_O

COM

CODEC

SATA_SGP1

CLR_CMOS

TYPEC

USB31

ATX_12V

PCIEX16

C246N-WU2

USB30_LAN2

DP_HDMI

SATA_DOM0

Intel® GbE

LAN (Note)

Intel® GbE

LAN (Note)

VGA

M2A

SATA_SGP2

SPEAKER

F_PANEL

SYS_FAN2

BAT

MIC_IN

USB30_LAN1

Chapter 1 Hardware Installation

1-1 Installation Precautions

The motherboard contains numerous delicate electronic circuits and components which can become

damagedasaresultofelectrostaticdischarge(ESD).Priortoinstallation,carefullyreadtheuser's

manual and follow these procedures:

•Prior to installation, make sure the chassis is suitable for the motherboard.

•Prior to installation, do not remove or break motherboard S/N (Serial Number) sticker or

warranty sticker provided by your dealer. These stickers are required for warranty validation.

•Always remove the AC power by unplugging the power cord from the power outlet before

installing or removing the motherboard or other hardware components.

•When connecting hardware components to the internal connectors on the motherboard, make

sure they are connected tightly and securely.

•When handling the motherboard, avoid touching any metal leads or connectors.

•It is best to wear an electrostatic discharge (ESD) wrist strap when handling electronic

componentssuchasamotherboard,CPUormemory.IfyoudonothaveanESDwriststrap,

keepyourhandsdryandrsttouchametalobjecttoeliminatestaticelectricity.

•Prior to installing the motherboard, please have it on top of an antistatic pad or within an

electrostatic shielding container.

•Before connecting or unplugging the power supply cable from the motherboard, make sure

the power supply has been turned off.

•Before turning on the power, make sure the power supply voltage has been set according to

the local voltage standard.

•Before using the product, please verify that all cables and power connectors of your hardware

components are connected.

•To prevent damage to the motherboard, do not allow screws to come in contact with the

motherboard circuit or its components.

•Make sure there are no leftover screws or metal components placed on the motherboard or

within the computer casing.

•Donotplacethecomputersystemonanunevensurface.

•Donotplacethecomputersysteminahigh-temperatureorwetenvironment.

•Turning on the computer power during the installation process can lead to damage to system

components as well as physical harm to the user.

•If you are uncertain about any installation steps or have a problem related to the use of the

product,pleaseconsultacertiedcomputertechnician.

•If you use an adapter, extension power cable, or power strip, ensure to consult with its installation

and/or grounding instructions.

- 5 -

1-2 ProductSpecications

CPU LGA1151 package:

- Intel® Xeon® E series processors

9th and 8th Generation Intel

Core

™

processors/Intel

Pentium

processors/

Intel

Celeron

processors

(Go to GIGABYTE's website for the latest CPU support list.)

L3 cache varies with CPU

Chipset Intel® C246 Express Chipset

Memory 2xDDR4DIMMsocketssupportingupto64GBofsystemmemory

Dualchannelmemoryarchitecture

SupportforDDR42666/2400/2133MHzmemorymodules

SupportforECCUn-bufferedDIMM1Rx8/2Rx8memorymodules

Supportfornon-ECCUn-bufferedDIMM1Rx8/2Rx8/1Rx16memorymodules

SupportforExtremeMemoryProle(XMP)memorymodules

(Go to GIGABYTE's website for the latest supported memory speeds and memory

modules.)

Onboard

Graphics

Integrated Graphics Processor-Intel®UHDGraphicssupport:

 - 1xD-Subport,supportingamaximumresolutionof1920x1200@60Hz

- 1xHDMIport,supportingamaximumresolutionof4096x2160@30Hz

* SupportforHDMI1.4versionandHDCP2.2.

 - 1xDisplayPort,supportingamaximumresolutionof4096x2304@60Hz

* SupportforDisplayPort1.2version,HDCP2.2,andHDR.

Support for up to 3 displays at the same time

Maximum shared memory of 1 GB

Audio Realtek® ALC887 codec

HighDenitionAudio

2/4/5.1/7.1-channel

* Tocongure7.1-channelaudio,youhavetouseanHDfrontpanelaudiomodule

and enable the multi-channel audio feature through the audio driver.

SupportforS/PDIFOut

LAN 2 x Intel® GbE LAN chips (10/100/1000 Mbit)

Expansion Slots 1 x PCI Express x16 slot, running at x16 (PCIEX16)

(The PCIEX16 slot conforms to PCI Express 3.0 standard.)

Storage Interface Chipset:

 - 1xM.2connector(Socket3,Mkey,type2280SATAandPCIex4/x2SSD

support) (M2A)

- 4 x SATA 6Gb/s connectors (SATA3 0~3)

 - SupportforRAID0,RAID1,RAID5,andRAID10

* Referto"1-8InternalConnectors,"fortheinstallationnoticesfortheM.2andSATA

connectors.

- 1xminiSASHDconnector,supportingaPCIex4U.2orfourSATA6Gb/s

(U2)

Intel® Optane™MemoryReady

- 6 -

USB Chipset:

- 1 x USB 3.1 Gen 2 Type-A ports (red) on the back panel

- 1 x USB Type-C™ port on the back panel, with USB 3.1 Gen 2 support

- 6 x USB 3.1 Gen 1 ports (4 ports on the back panel, 2 ports available through

the internal USB header)

Internal

Connectors

1 x 24-pin ATX main power connector

1 x 4-pin ATX 12V power connector

1 x M.2 Socket 3 connector

4 x SATA 6Gb/s connectors

2xSATADetectionHeaders(SATA_SGP1/2)

1 x SATA power connector

1 x CPU fan header

2 x system fan headers

1 x front panel header

1 x front panel audio header

1 x USB 3.1 Gen 1 header

1xS/PDIFOutheader

 1 x Trusted Platform Module (TPM) header (2x6 pin, for the GC-TPM2.0_S

module only)

1 x serial port header

1 x speaker header

1 x Clear CMOS jumper

1 x chassis intrusion header

Back Panel

Connectors

1xD-Subport

1xHDMIport

1xDisplayPort

1 x USB 3.1 Gen 2 Type-A port (red)

1 x USB Type-C™ port, with USB 3.1 Gen 2 support

4 x USB 3.1 Gen 1 ports

2xRJ-45ports

 2 x audio jacks

I/O Controller iTE® I/O Controller Chip

Hardware

Monitor

Voltage detection

Temperature detection

Fan speed detection

Overheating warning

Fan fail warning

Fan speed control

* Whether the fan speed control function is supported will depend on the cooler you

install.

BIOS 1x128Mbitash

Use of licensed AMI UEFI BIOS

PnP1.0a,DMI2.7,WfM2.0,SMBIOS2.7,ACPI5.0

- 7 -

Operating

Properties

Operating temperature: -10°C to 50°C

Operating humidity: 8% - 90%

Non-operating temperature: -40°C to 70°C

Non-operating humidity: 5% - 95%

Unique Features Support for APP Center

* Available applications in APP Center may vary by motherboard model. Supported

functionsofeachapplicationmayalsovarydependingonmotherboardspecications.

- @BIOS

- System Information Viewer

Support for Q-Flash

Bundled

Software

Norton® Internet Security (OEM version)

cFosSpeed

Operating

System Support for Windows 10 64-bit

Form Factor Mini-ITX Form Factor; 17.0cm x 17.0cm

* GIGABYTE reserves the right to make any changes to the product specications and product-related information

without prior notice.

Please visit GIGABYTE's website

for support lists of CPU, memory

modules,SSDs,andM.2devices.

Please visit the Support\Utility List

page on GIGABYTE's website to

download the latest version of apps.

- 8 -

1-3 Installing the CPU

ReadthefollowingguidelinesbeforeyoubegintoinstalltheCPU:

•Make sure that the motherboard supports the CPU.

(Go to GIGABYTE's website for the latest CPU support list.)

•Always turn off the computer and unplug the power cord from the power outlet before installing the

CPU to prevent hardware damage.

•Locate the pin one of the CPU. The CPU cannot be inserted if oriented incorrectly. (Or you may

locate the notches on both sides of the CPU and alignment keys on the CPU socket.)

•Apply an even and thin layer of thermal grease on the surface of the CPU.

•DonotturnonthecomputeriftheCPUcoolerisnotinstalled,otherwiseoverheatinganddamage

of the CPU may occur.

•SettheCPUhostfrequencyinaccordancewiththeCPUspecications.Itisnotrecommended

thatthesystembusfrequencybesetbeyondhardwarespecicationssinceitdoesnotmeetthe

standard requirements for the peripherals. If you wish to set the frequency beyond the standard

specications,pleasedosoaccordingtoyourhardwarespecicationsincludingtheCPU,graphics

card, memory, hard drive, etc.

Installing the CPU

Locate the alignment keys on the motherboard CPU socket and the notches on the CPU.

Do not remove the CPU socket cover before inserting the CPU. It may pop off from the

load plate automatically during the process of re-engaging the lever after you insert the

CPU.

1-4 Installing the Memory

Readthefollowingguidelinesbeforeyoubegintoinstallthememory:

•Make sure that the motherboard supports the memory. It is recommended that memory of the same

capacity, brand, speed, and chips be used.

(Go to GIGABYTE's website for the latest supported memory speeds and memory modules.)

•Always turn off the computer and unplug the power cord from the power outlet before installing the

memory to prevent hardware damage.

•Memory modules have a foolproof design. A memory module can be installed in only one direction.

If you are unable to insert the memory, switch the direction.

Alignment

Key

Alignment

Key

LGA1151 CPU Socket

Pin One Corner of the CPU Socket

Please visit GIGABYTE's website for details on hardware installation.

Triangle Pin One Marking on the CPU

Notch

LGA1151 CPU

- 9 -

DualChannelMemoryConguration

ThismotherboardprovidestwomemorysocketsandsupportsDualChannelTechnology.Afterthememory

isinstalled,theBIOSwillautomaticallydetectthespecicationsandcapacityofthememory.EnablingDual

Channel memory mode will double the original memory bandwidth.

The two memory sockets are divided into two channels and each channel has one memory socket as following:

ChannelA:DDR4_A1

ChannelB:DDR4_B1

DuetoCPUlimitations,readthefollowingguidelinesbeforeinstallingthememoryinDualChannelmode.

1. DualChannelmodecannotbeenabledifonlyonememorymoduleisinstalled.

2. WhenenablingDualChannelmodewithtwomemorymodules,itisrecommendedthatmemoryof

the same capacity, brand, speed, and chips be used.

1-5 Installing an Expansion Card

Readthefollowingguidelinesbeforeyoubegintoinstallanexpansioncard:

•Make sure the motherboard supports the expansion card. Carefully read the manual that came

with your expansion card.

•Always turn off the computer and unplug the power cord from the power outlet before installing an

expansion card to prevent hardware damage.

1-6 Back Panel Connectors

USB 3.1 Gen 2 Type-A Port (Red)

TheUSB3.1Gen2Type-AportsupportstheUSB3.1Gen2specicationandiscompatibletotheUSB

3.1Gen1andUSB2.0specication.UsethisportforUSBdevices.

USB Type-C™ Port

ThereversibleUSBportsupportstheUSB3.1Gen2specicationandiscompatibletotheUSB3.1Gen1

andUSB2.0specication.UsethisportforUSBdevices.

D-Sub Port

TheD-Subportsupportsa15-pinD-Subconnectorandsupportsamaximumresolutionof1920x1200@60Hz

(theactualresolutionssupporteddependonthemonitorbeingused).ConnectamonitorthatsupportsD-Sub

connection to this port.

DisplayPort

DisplayPortdelivershighqualitydigitalimagingandaudio,supportingbi-directionalaudiotransmission.

DisplayPortcansupportbothDPCPandHDCP2.2contentprotectionmechanisms.Itprovidesimproved

visualssupporting Rec. 2020 (Wide ColorGamut) and High Dynamic Range(HDR) for Blu-ray UHD

playback.Youcanuse thisporttoconnectyour DisplayPort-supportedmonitor. Note:TheDisplayPort

Technologycansupportamaximumresolutionof4096x2304@60Hzbuttheactualresolutionssupported

depend on the monitor being used.

- 10 -

• Tosetupatriple-displayconguration,youmustinstallmotherboarddriversintheoperating

systemrst.

• Afterinstalling the DisplayPort/HDMIdevice, make sure toset the default sound playback

devicetoDisplayPort/HDMI.(Theitemnamemaydifferdependingonyouroperatingsystem.)

HDMI Port

TheHDMIportsupportsHDCP2.2andDolbyTrueHDandDTSHDMasterAudio

formats.Italsosupportsupto192KHz/16bit8-channelLPCMaudiooutput.You

canuse this port to connect your HDMI-supportedmonitor. The maximumsupported resolution is

4096x2160@30Hz,buttheactualresolutionssupportedaredependentonthemonitorbeingused.

RJ-45 LAN Port

The Gigabit Ethernet LAN port provides Internet connection at up to 1 Gbps data rate. The following

describesthestatesoftheLANportLEDs.

USB 3.1 Gen 1 Port

TheUSB3.1Gen1portsupportstheUSB3.1Gen1specicationandiscompatibletotheUSB2.0

specication.UsethisportforUSBdevices.

Mic In (Pink)

The Mic in jack.

Line Out/Front Speaker Out (Green)

The line out jack.

•Whenremovingthecableconnectedtoabackpanelconnector,rstremovethecablefromyour

device and then remove it from the motherboard.

•Whenremovingthecable,pullitstraightoutfromtheconnector.Donotrockitsidetosideto

prevent an electrical short inside the cable connector.

PleasevisitGIGABYTE'swebsitefordetailsonconguringtheaudiosoftware.

ActivityLED

Connection/

SpeedLED

LAN Port

ActivityLED:Connection/SpeedLED:

State Description

Orange 1 Gbps data rate

Green 100 Mbps data rate

Off 10 Mbps data rate

State Description

Blinking Datatransmissionorreceivingisoccurring

On No data transmission or receiving is occurring

•TheintegratedHD(HighDenition)audioprovidesjackretaskingcapabilitythatallowstheuser

to change the function for each jack through the audio driver.

•Tocongure7.1-channelaudio,youhavetouseanHDfrontpanelaudiomoduleandenablethe

multi-channel audio feature through the audio driver. Please go to the Start menu to select Realtek

Audio Console, enter the Device advanced settings tab in the lower left corner of the dialog box,

and check the option Mute the internal output device, when an external headphone plugged

in. to proceed with 7.1-channel settings.

- 11 -

1-7 Internal Connectors

Readthefollowingguidelinesbeforeconnectingexternaldevices:

•First make sure your devices are compliant with the connectors you wish to connect.

•Before installing the devices, be sure to turn off the devices and your computer. Unplug the power

cord from the power outlet to prevent damage to the devices.

•After installing the device and before turning on the computer, make sure the device cable has

been securely attached to the connector on the motherboard.

1) ATX_12V

2) ATX

3) CPU_FAN

4) SYS_FAN1/2

5) SATA3 0/1/2/3

6) SATA_DOM0

7) SATA_SGP1/2

8) U2

9) M2A

10) F_PANEL

11) F_ AUDIO

12) SPDIF_O

13) SPEAKER

14) F_USB30

15) TPM

16) COM

17) BAT

18) CLR_CMOS

19) CI

12 13

15 16

- 12 -

DEBUG

PORT

G.QBOFM

ATX

1/2) ATX_12V/ATX (2x2 12V Power Connector and 2x12 Main Power Connector)

With the use of the power connector, the power supply can supply enough stable power to all the components

onthemotherboard.Beforeconnectingthepowerconnector,rstmakesurethepowersupplyisturned

off and all devices are properly installed. The power connector possesses a foolproof design. Connect the

power supply cable to the power connector in the correct orientation.

The 12V power connector mainly supplies power to the CPU. If the 12V power connector is not connected,

the computer will not start.

To meet expansion requirements, it is recommended that a power supply that can withstand high

power consumption be used (500W or greater). If a power supply is used that does not provide the

required power, the result can lead to an unstable or unbootable system.

ATX:

Pin No. Denition Pin No. Denition

1 3.3V 13 3.3V

2 3.3V 14 -12V

3GND 15 GND

4 +5V 16 PS_ON (soft On/Off)

5GND 17 GND

6 +5V 18 GND

7GND 19 GND

8 Power Good 20 NC

9 5VSB (stand by +5V) 21 +5V

10 +12V 22 +5V

11 +12V (Only for 2x12-pin

ATX)

23 +5V (Only for 2x12-pin ATX)

12 3.3V (Only for 2x12-pin

ATX)

24 GND(Onlyfor2x12-pin

ATX)

ATX_12V:

Pin No. Denition

1GND

2GND

3 +12V

4 +12V

ATX_12V

3/4) CPU_FAN/SYS_FAN1/2 (Fan Headers)

All fan headers on this motherboard are 4-pin. Most fan headers possess a foolproof insertion design.

When connecting a fan cable, be sure to connect it in the correct orientation (the black connector wire is

the ground wire). The speed control function requires the use of a fan with fan speed control design. For

optimum heat dissipation, it is recommended that a system fan be installed inside the chassis.

•Be sure to connect fan cables to the fan headers to prevent your CPU and system from

overheating. Overheating may result in damage to the CPU or the system may hang.

•Thesefanheadersarenotcongurationjumperblocks.Donotplaceajumpercapontheheaders.

CPU_FAN/SYS_FAN1

DEBUG

PORT

G.QBOFM

Pin No. Denition

1GND

2 Voltage Speed Control

3 Sense

4 PWM Speed Control

DEBUG

PORT

G.QBOFM

SYS_FAN2

- 13 -

5) SATA3 0/1/2/3 (SATA 6Gb/s Connectors)

The SATA connectors conform to SATA 6Gb/s standard and are compatible with SATA 3Gb/s and SATA

1.5Gb/s standard. Each SATA connector supports a single SATA device. The Intel®ChipsetsupportsRAID0,

RAID1,RAID5,andRAID10.RefertoChapter3,"ConguringaRAIDSet,"forinstructionsonconguring

aRAIDarray.

Pin No. Denition

1GND

2 TXP

3 TXN

4GND

5RXN

6RXP

7GND

Toenablehot-pluggingfortheSATAports,refertoChapter2,"BIOSSetup,""Peripherals\SATA

AndRSTConguration,"formoreinformation.

7) SATA_SGP1/2 (SATA Detection Headers)

The headers can connect to SATA detection devices.

Pin No. Denition

1 NC

2 No Pin

3DATA0

4 NC

5 NC

6LOAD

7 NC

8 CLOCK

F_USB30 F_U

B_ 

F_  F_ 



_

B

BS_

B

SB_

B

_S



S_

_

B

_U

_

B





 

S  

 

123

 

123

 

123

 

123

BSS

S

_S 

SSU

 

1 2 3  

 S3 BSSS



U

 __ 3

F_USB3F

S  _

SF





B_

F

_0

S

S

_0F

_F

_

_

__B





U

S  _S

_ SF_

B 

USB0_B

B_ F_USB3

 F_USB303



_



_3U

S_

SATA_SGP1

F_USB30 F_U

B_ 

F_  F_ 



_

B

BS_

B

SB_

B

_S



S_

_

B

_U

_

B





 

S  

 

123

 

123

 

123

 

123

BSS

S

_S 

SSU

 

1 2 3  

 S3 BSSS



U

 __ 3

F_USB3F

S  _

SF





B_

F

_0

S

S

_0F

_F

_

_

__B





U

S  _S

_ SF_

B 

USB0_B

B_ F_USB3

 F_USB303



_



_3U

S_

SATA_SGP2

Pin No. Denition

1 NC

2 No Pin

3DATA1

4 NC

5 NC

6LOAD

7 NC

8 CLOCK

SATA_SGP1 SATA_SGP2

DEBUG

PORT

G.QBOFM

DEBUG

PORT

G.QBOFM

0 3

SATA3

DEBUG

PORT

G.QBOFM

DEBUG

PORT

G.QBOFM

6) SATA_DOM0 (SATA Power Connector)

This connector provides power to installed SATA devices.

Pin No. Denition

1 +5V

2GND

3 NC

- 14 -

8) U2 (MiniSAS HD Connector)

 TheminiSASHDconnectorsupportsonePCIex4U.2orfourSATA6Gb/s.

F_USB30 F_U

B_ 

F_  F_ 



_

B

BS_

B

SB_

B

_S



S_

_

B

_U

_

B





 

S  

 

123

 

123

 

123

 

123

BSS

S

_S 

SSU

 

1 2 3  

 S3 BSSS



U

 __ 3

F_USB3F

S  _

SF





B_

F

_0

S

S

_0F

_F

_

_

__B





U

S  _S

_ SF_

B 

USB0_B

B_ F_USB3

 F_USB303



_



_3U

S_

Installation Notices for the M.2 and SATA Connectors:

DuetothelimitednumberoflanesprovidedbytheChipset,theavailabilityoftheSATAconnectorsmay

be affected by the type of device installed in the M.2 connector. The M2A connector shares bandwidth

withtheSATA31connector.Refertothefollowingtablesfordetails.

9) M2A (M.2 Socket 3 Connector)

 TheM.2connectorssupportM.2SATASSDsorM.2PCIeSSDsandsupportRAIDconguration.Please

notethatanM.2PCIeSSDcannotbeusedtocreateaRAIDseteitherwithanM.2SATASSDoraSATA

harddrive.TocreateaRAIDarraywithanM.2PCIeSSD,youmustsetupthecongurationinUEFIBIOS

mode.RefertoChapter3,"ConguringaRAIDSet,"forinstructionsonconguringaRAIDarray.

FollowthestepsbelowtocorrectlyinstallanM.2SSDintheM.2connector.

Step 1:

Use a screw driver to unfasten the screw from the motherboard. Slide the M.2

SSDintotheconnectoratanangle.

Step 2:

PresstheM.2SSDdownandthensecureitwiththescrew.

SATA3 0 SATA3 1 SATA3 2 SATA3 3

M.2SATASSD ara a

M.2PCIeSSD

a a a a

NoM.2SSDInstalled a a a a

a: Available, r: Not available

Connector

Type of

M.2SSD

F_USB30 F_U

B_ 

F_  F_ 



_

B

BS_

B

SB_

B

_S



S_

_

B

_U

_

B





 

S  

 

123

 

123

 

123

 

123

BSS

S

_S 

SSU

 

1 2 3  

 S3 BSSS



U

 __ 3

F_USB3F

S  _

SF





B_

F

_0

S

S

_0F

_F

_

_

__B





U

S  _S

_ SF_

B 

USB0_B

B_ F_USB3

 F_USB303



_



_3U

S_

- 15 -

10) F_PANEL (Front Panel Header)

Connect the power switch, reset switch, and system status indicator on the chassis to this header according

to the pin assignments below. Note the positive and negative pins before connecting the cables.

System Status LED

S0 On

S3/S4/S5 Off

•PW (Power Switch):

 Connectstothepowerswitchonthechassisfrontpanel.Youmaycongurethewaytoturnoffyour

systemusingthepowerswitch(refertoChapter2,"BIOSSetup,""Power,"formoreinformation).

•HD (HardDriveActivityLED):

 ConnectstotheharddriveactivityLEDonthechassisfrontpanel.TheLEDisonwhentheharddrive

is reading or writing data.

•RES (ResetSwitch):

Connects to the reset switch on the chassis front panel. Press the reset switch to restart the computer

ifthecomputerfreezesandfailstoperformanormalrestart.

•NC: No connection.

•PLED(PowerLED):

Connectstothepowerstatusindicatoronthechassisfrontpanel.TheLED

isonwhenthesystemisoperating.TheLEDisoffwhenthesystemisinS3/

S4 sleep state or powered off (S5).

910

PLED-

PW-

PLED+

PW+

HD-

RES+

HD+

RES-

Power Switch

HardDrive

ActivityLED

ResetSwitch

PowerLED

The front panel design may differ by chassis. A front panel module mainly consists of power

switch,resetswitch,powerLED,harddriveactivityLEDandetc.Whenconnectingyourchassis

front panel module to this header, make sure the wire assignments and the pin assignments are

matched correctly.

11) F_AUDIO (Front Panel Audio Header)

 ThefrontpanelaudioheadersupportsHighDenitionaudio(HD).Youmayconnectyourchassisfront

panel audio module to this header. Make sure the wire assignments of the module connector match the

pin assignments of the motherboard header. Incorrect connection between the module connector and the

motherboard header will make the device unable to work or even damage it.

Some chassis provide a front panel audio module that has separated connectors on each wire

instead of a single plug. For information about connecting the front panel audio module that has

different wire assignments, please contact the chassis manufacturer.

910

Pin No. Denition Pin No. Denition

1 MIC2_L 6 Sense

2GND 7FAUDIO_JD

3MIC2_R 8 No Pin

4 NC 9 LINE2_L

5LINE2_R 10 Sense

- 16 -

12) SPDIF_O (S/PDIF Out Header)

 ThisheadersupportsdigitalS/PDIFOutandconnectsaS/PDIFdigitalaudiocable(providedbyexpansion

cards) for digital audio output from your motherboard to certain expansion cards like graphics cards and

soundcards.Forexample,somegraphicscardsmayrequireyoutouseaS/PDIFdigitalaudiocablefor

digitalaudiooutputfromyourmotherboardtoyourgraphicscardifyouwishtoconnectanHDMIdisplay

tothegraphicscardandhavedigitalaudiooutputfromtheHDMIdisplayatthesametime.Forinformation

aboutconnectingtheS/PDIFdigitalaudiocable,carefullyreadthemanualforyourexpansioncard.

Pin No. Denition

15VDUAL

2 No Pin

3SPDIFO

4GND

F_USB30 F_U

B_ 

F_  F_ 



_

B

BS_

B

SB_

B

_S



S_

_

B

_U

_

B





 

S  

 

123

 

123

 

123

 

123

BSS

S

_S 

SSU

 

1 2 3  

 S3 BSSS



U

 __ 3

F_USB3F

S  _

SF





B_

F

_0

S

S

_0F

_F

_

_

__B





U

S  _S

_ SF_

B 

USB0_B

B_ F_USB3

 F_USB303



_



_3U

S_

13) SPEAKER (Speaker Header)

Connects to the speaker on the chassis front panel. The system reports system startup status by issuing

a beep code. One single short beep will be heard if no problem is detected at system startup.

Pin No. Denition

1 VCC

2 NC

3 NC

4 SPK-

DEBUG

PORT

G.QBOFM

14) F_USB30 (USB 3.1 Gen 1 Header)

 TheheaderconformstoUSB3.1Gen1andUSB2.0specicationandcanprovidetwoUSBports.For

purchasingtheoptional3.5"frontpanelthatprovidestwoUSB3.1Gen1ports,pleasecontactthelocal

dealer.

F_USB30 F_U

B_ 

F_  F_ 



_

B

BS_

B

SB_

B

_S



S_

_

B

_U

_

B





 

S  

 

123

 

123

 

123

 

123

BSS

S

_S 

SSU

 

1 2 3  

 S3 BSSS



U

 __ 3

F_USB3F

S  _

SF





B_

F

_0

S

S

_0F

_F

_

_

__B





U

S  _S

_ SF_

B 

USB0_B

B_ F_USB3

 F_USB303



_



_3U

S_

20 1

Pin No. Denition Pin No. Denition Pin No. Denition

1 VBUS 8 D1- 15 SSTX2-

2SSRX1- 9D1+ 16 GND

3SSRX1+ 10 NC 17 SSRX2+

4GND 11 D2+ 18 SSRX2-

5 SSTX1- 12 D2- 19 VBUS

6 SSTX1+ 13 GND 20 No Pin

7GND 14 SSTX2+

- 17 -

15) TPM (Trusted Platform Module Header)

You may connect a TPM (Trusted Platform Module) to this header.

Pin No. Denition Pin No. Denition

1LAD0 7LAD3

2 VCC3 8 GND

3LAD1 9LFRAME

4 No Pin 10 NC

5LAD2 11 SERIRQ

6 LCLK 12 LRESET

F_USB30 F_U

B_ 

F_  F_ 



_

B

BS_

B

SB_

B

_S



S_

_

B

_U

_

B





 

S  

 

123

 

123

 

123

 

123

BSS

S

_S 

SSU

 

1 2 3  

 S3 BSSS



U

 __ 3

F_USB3F

S  _

SF





B_

F

_0

S

S

_0F

_F

_

_

__B





U

S  _S

_ SF_

B 

USB0_B

B_ F_USB3

 F_USB303



_



_3U

S_

16) COM (Serial Port Header)

The COM header can provide one serial port via an optional COM port cable. For purchasing the optional

COM port cable, please contact the local dealer.

Pin No. Denition Pin No. Denition

1NDCD- 6NDSR-

2 NSIN 7 NRTS-

3 NSOUT 8 NCTS-

4NDTR- 9NRI-

5GND 10 No Pin

17) BAT (Battery)

 Thebatteryprovidespowertokeepthevalues(suchasBIOScongurations,date,andtimeinformation)

intheCMOSwhenthecomputeristurnedoff.Replacethebatterywhenthebatteryvoltagedropstoalow

level, or the CMOS values may not be accurate or may be lost.

You may clear the CMOS values by removing the battery:

1. Turn off your computer and unplug the power cord.

2. Unplug the the battery cable from the battery cable header and wait for one minute.

3. Plug in the battery cable.

4. Plug in the power cord and restart your computer.

•Always turn off your computer and unplug the power cord before replacing the battery.

•Replacethebatterywithanequivalentone.Damagetoyourdevicesmayoccurifthebatteryis

replaced with an incorrect model.

•Contact the place of purchase or local dealer if you are not able to replace the battery by yourself

or uncertain about the battery model.

•Used batteries must be handled in accordance with local environmental regulations.

1(+)

2(-) Pin No. Denition

1(+) RTCPower

2(-) GND

F_USB30 F_U

B_ 

F_  F_ 



_

B

BS_

B

SB_

B

_S



S_

_

B

_U

_

B





 

S  

 

123

 

123

 

123

 

123

BSS

S

_S 

SSU

 

1 2 3  

 S3 BSSS



U

 __ 3

F_USB3F

S  _

SF





B_

F

_0

S

S

_0F

_F

_

_

__B





U

S  _S

_ SF_

B 

USB0_B

B_ F_USB3

 F_USB303



_



_3U

S_

- 18 -

18) CLR_CMOS (Clear CMOS Jumper)

 UsethisjumpertocleartheBIOScongurationandresettheCMOSvaluestofactorydefaults.Toclear

the CMOS values, use a metal object like a screwdriver to touch the two pins for a few seconds.

•Always turn off your computer and unplug the power cord from the power outlet before clearing

the CMOS values.

•Aftersystemrestart,gotoBIOSSetuptoloadfactorydefaults(selectLoadOptimizedDefaults)or

manuallyconguretheBIOSsettings(refertoChapter2,"BIOSSetup,"forBIOScongurations).

Open: Normal

Short: Clear CMOS Values

19) CI (Chassis Intrusion Header)

This motherboard provides a chassis detection feature that detects if the chassis cover has been removed.

This function requires a chassis with chassis intrusion detection design.

Pin No. Denition

1 Signal

2GND

- 19 -

•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 or the 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: T40)

Function Keys

- 20 -

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Gigabyte C246N-WU2 Owner's manual

Gigabyte C246N-WU2 Owner's manual

Gigabyte C246N-WU2 Owner's manual

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