Gigabyte C246N-WU2 Owner's manual

C246N-WU2
Gigabyte
Brand
Gigabyte
Model
C246N-WU2
Type
Owner's manual
For more product details, please visit GIGABYTE's website.
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product are recyclable and reusable. GIGABYTE works with you to protect the
environment.
C246N-WU2
User's Manual
Rev. 1002
12ME-246NWU2-1002R
Copyright
© 2019 GIGA-BYTE TECHNOLOGY CO., LTD. All rights reserved.
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
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
3
LINE_OUT
80
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
U2
M2A
SATA_SGP2
SPEAKER
F_PANEL
CI
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SATAand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SATA6Gb/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
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
2
11
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
3
4
4
5
6
7
8
9
10
12 13
14
15 16
17
17
18
19
- 12 -
DEBUG
PORT
G.QBOFM
13
1
24
12
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
1
3
2
4
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
1
Pin No. Denition
1GND
2 Voltage Speed Control
3 Sense
4 PWM Speed Control
DEBUG
PORT
G.QBOFM
1
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SATAports,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
1
1
1
1
BSS
S
_S 
SSU
 
1 2 3 
 S3 BSSS

U
 __ 3
F_USB3F
S  _
S  _
S  _
SF


B_
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_
12
7
8
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
1
1
1
1
BSS
S
_S 
SSU
 
1 2 3  
 S3 BSSS

U
 __ 3
F_USB3F
S  _
S  _
S  _
SF


B_
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_
12
7
8
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
2
1
0 3
SATA3
1
71
7
DEBUG
PORT
G.QBOFM
71
DEBUG
PORT
G.QBOFM
1
7
6) SATA_DOM0 (SATA Power Connector)
This connector provides power to installed SATA devices.
Pin No. Denition
1 +5V
2GND
3 NC
3
1
- 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
1
1
1
1
BSS
S
_S 
SSU
 
1 2 3 
 S3 BSSS

U
 __ 3
F_USB3F
S  _
S  _
S  _
SF


B_
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
80
- 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).
12
910
NC
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.
12
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
1
1
1
1
BSS
S
_S 
SSU
 
1 2 3  
 S3 BSSS

U
 __ 3
F_USB3F
S  _
S  _
S  _
SF


B_
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_
1
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
1
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
1
1
1
1
BSS
S
_S 
SSU
 
1 2 3  
 S3 BSSS

U
 __ 3
F_USB3F
S  _
S  _
S  _
SF


B_
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_
10
20 1
11
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
11
1
F_USB30 F_U
B_ 
F_  F_ 

_
B
BS_
B
SB_
B
_S

S_
_
B
_U
_
B


 
S  
 
123
 
123
 
123
 
123
1
1
1
1
BSS
S
_S 
SSU
 
1 2 3 
 S3 BSSS

U
 __ 3
F_USB3F
S  _
S  _
S  _
SF


B_
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_
12
2
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
10
9
2
1
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
1
1
1
1
BSS
S
_S 
SSU
 
1 2 3  
 S3 BSSS

U
 __ 3
F_USB3F
S  _
S  _
S  _
SF


B_
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
1
- 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

C246N-WU2
Gigabyte
Brand
Gigabyte
Model
C246N-WU2
Type
Owner's manual
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