GIGA-BYTE TECHNOLOGY GA-Z270N-WIFI User manual

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GA-Z270N-WIFI GA-H270N-WIFI
GA-Z270N-WIFI
GA-H270N-WIFI
User's Manual
Rev. 1002
12ME-Z270NWF-1002R

Dec. 9, 2016
Motherboard
GA-Z270N-WIFI/GA-H270N-WIFI
Wireless Module Country Approvals:
See the latest safety and regulatory documents at GIGABYTE's website.
Motherboard
GA-Z270N-WIFI
GA-H270N-WIFI
Dec. 9, 2016

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Copyright
©2017 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.

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.
For quick set-up of the product, read the Quick Installation Guide included with the product.
For detailed product information, carefully read the User's Manual.
For product-related information, check on our website at: http://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:

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Table of Contents
GA-Z270N-WIFI/GA-H270N-WIFI Motherboard Layout..................................................5
Chapter 1 Hardware Installation .....................................................................................6
1-1 Installation Precautions.................................................................................... 6
 ...................................................................................... 7
1-3 Installing the CPU .......................................................................................... 10
1-4 Installing the Memory..................................................................................... 10
1-5 Installing an Expansion Card ......................................................................... 11
1-6 Back Panel Connectors.................................................................................. 11
1-7 Internal Connectors........................................................................................ 13
Chapter 2 BIOS Setup ..................................................................................................20
2-1 Startup Screen ............................................................................................... 20
2-2 M.I.T. .............................................................................................................. 21
2-3 System ........................................................................................................... 27
2-4 BIOS............................................................................................................... 28
2-5 Peripherals..................................................................................................... 31
2-6 Chipset........................................................................................................... 33
2-7 Power............................................................................................................. 34
2-8 Save & Exit..................................................................................................... 36
Chapter 3 Appendix ......................................................................................................37
 .................................................................................. 37
3-2 Drivers Installation.......................................................................................... 40
Regulatory Statements.............................................................................................. 41
Contact Us ................................................................................................................ 48

(Note) The connector/chip is on the back of the motherboard.
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* 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.
GA-Z270N-WIFI/GA-H270N-WIFI Motherboard Layout
Box Contents
5GA-Z270N-WIFI or GA-H270N-WIFI motherboard
5Motherboard driver disk 5Wireless module driver disk
5User's Manual
5Quick Installation Guide
5One antenna
5I/O Shield
5Two SATA cables
MOnly for GA-Z270N-WIFI.
NOnly for GA-H270N-WIFI.
KB_MS_USB3
DOUBLE_HDMI
SYS_FAN
LGA1151
ATX
GA-Z270N-WIFI GA-H270N-WIFI
F_AUDIO
AUDIO
F_USB1
DDR4_1 DDR4_2
BAT
ATX_12V
Intel®Z270M
Intel®H270N
DVI ANTENNA-BRACKET
USB30_LAN1
LAN2
CODEC
SPEAKER
iTE®
Super I/O
F_PANEL
WIFI Module
SPDIF_O
Intel®GbE
LAN
Intel®GbE
LAN (Note)
4
5
CPU_FAN
3 1 2 0
SATA3
M2_WIFI
SATA3
CI
M_BIOS B_BIOS
F_USB30
PCIEX16
TYPE_C
M.2 (Note)
CLR_CMOS

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,

•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

•If you use an adapter, extension power cable, or power strip, ensure to consult with its installation
and/or grounding instructions.
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 
CPU Supportfor7thand6thGenerationIntel®Core™i7processors/Intel®Core™i5processors/
Intel®Core™i3 processors/Intel®Pentium®processors/Intel®Celeron®processors in
the LGA1151 package(Go to GIGABYTE's website for the latest CPU support list.)
L3 cache varies with CPU
Chipset Intel®Z270M/H270NExpress Chipset
Memory
2 x DDR4 DIMM sockets supporting up to 32 GB of system memory
* Due to a Windows 32-bit operating system limitation, when more than 4 GB of
physical memory is installed, the actual memory size displayed will be less than the
size of the physical memory installed.
Dual channel memory architecture
Support for DDR4 2400/2133 MHz memory modules
Support for ECC Un-buffered DIMM 1Rx8/2Rx8 memory modules (operate in
non-ECC mode)
Support for non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16 memory modules
Support for Extreme Memory Prole (XMP) memory modules
* For the GA-H270N-WIFI to support 2400 MHz or XMP memory, you must install a 7th
Generation processor.
(Go to GIGABYTE's website for the latest supported memory speeds and
memory modules.)
Onboard
Graphics
Integrated Graphics Processor-Intel®HD Graphics support:
- 1 x DVI-D port, supporting a maximum resolution of 1920x1200@60 Hz
* The DVI-D port does not support D-Sub connection by adapter.
- 2 x HDMI ports, supporting a maximum resolution of 4096x2160@24 Hz
* Support for HDMI 1.4 version.
Support for up to 3 displays at the same time
Maximum shared memory of 1 GB
Audio Realtek®ALC1220 codec
High Denition Audio
2/4/5.1/7.1-channel
Support for S/PDIF Out
LAN 2 x Intel®GbE LAN chips (10/100/1000 Mbit)
Wireless
Communication
Module
Wi-Fi 802.11 a/b/g/n/ac, supporting 2.4/5 GHz Dual-Band
BLUETOOTH 4.2, 4.1, BLE, 4.0, 3.0, 2.1+EDR
Support for 11ac wireless standard and up to 867 Mbps data rate
* Actual data rate may vary depending on environment and equipment.
Expansion Slots 1 x PCI Express x16 slot, running at x16
(The PCIEX16 slot conforms to PCI Express 3.0 standard.)
1 x M.2 Socket 1 connector for the wireless communication module (M2_WIFI)
Storage Interface Chipset:
- 1 x M.2 connector on the back of the motherboard (Socket 3, M key, type
2260/2280 SATA and PCIe x4/x2 SSD support)
- 6 x SATA 6Gb/s connectors
- Support for RAID 0, RAID 1, RAID 5, and RAID 10
* Refer to "1-7 Internal Connectors," for the installation notices for the M.2 and SATA connectors.
MOnly for GA-Z270N-WIFI. NOnly for GA-H270N-WIFI.
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USB Chipset:
- 2 x USB 2.0/1.1 ports available through the internal USB header
- 6 x USB 3.1 Gen 1 ports (4 ports on the back panel, 2 ports available through
the internal USB header)
- 1 x USB Type-C™port on the back panel, with USB 3.1 Gen 1 support
Internal
Connectors
1 x 24-pin ATX main power connector
1 x 4-pin ATX 12V power connector
6 x SATA 6Gb/s connectors
1 x M.2 Socket 3 connector on the back of the motherboard
1 x CPU fan header
1 x system fan header
1 x front panel header
1 x front panel audio header
1 x USB 3.1 Gen 1 header
1 x USB 2.0/1.1 header
1 x S/PDIF Out header
1 x speaker header
1 x Clear CMOS jumper
1 x chassis intrusion header
Back Panel
Connectors
1 x PS/2 keyboard/mouse port
2 x HDMI ports
2 x SMA antenna connectors (2T2R)
1 x DVI-D port
4 x USB 3.1 Gen 1 ports
1 x USB Type-C™port, with USB 3.1 Gen 1 support
2 x RJ-45 ports
1 x optical S/PDIF Out connector
5 x audio jacks (Center/Subwoofer Speaker Out, Rear Speaker Out, Line In,
Line Out, Mic In)
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 2 x 128 Mbit ash
Use of licensed AMI UEFI BIOS
Support for DualBIOS™
PnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0
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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.
- 3D OSD
- @BIOS
- Ambient LED
- AutoGreen
- BIOS Setup
- Color Temperature
- Cloud Station
- EasyTune
- Easy RAID
- Fast Boot
- Game Boost
- ON/OFF Charge
- Platform Power Management
- Smart Backup
- Smart Keyboard
- Smart TimeLock
- System Information Viewer
- USB Blocker
- V-Tuner
Support for Q-Flash
Support for Xpress Install
Bundled
Software
Norton®Internet Security (OEM version)
Intel® Optane™Memory Ready
cFosSpeed
Operating
System
Support for Windows 10 64-bit (for 7th Generation Intel®processors)
Support for Windows 10 64-bit/Windows 8.1 64-bit/Windows 7 32-bit/64-bit (for
6th Generation Intel®processors)
* Please download the "Windows USB Installation Tool" from GIGABYTE's website
and install it before installing Windows 7.
Form Factor Mini-ITX Form Factor; 17.0cm x 17.0cm
 
prior notice.
Please visit GIGABYTE's website for support lists of CPU, memory modules,
SSDs, and M.2 devices.
GA-Z270N-WIFI GA-H270N-WIFI
Please visit the Support\Utility List page on GIGABYTE's website to download the latest
version of apps.
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
This motherboard provides two memory sockets and supports Dual Channel Technology. After the memory

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_1
Channel B: DDR4_2
Please visit GIGABYTE's website for details on hardware installation.
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.
•

standard requirements for the peripherals. If you wish to set the frequency beyond the standard

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.
Alignment Key
Alignment Key
LGA1151 CPU Socket
Pin One Corner of the CPU Socket
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.
LGA1151 CPU
Triangle Pin One Marking on the CPU
Notch
Notch
- 10 -

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.
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.
1-6 Back Panel Connectors
PS/2 Keyboard/Mouse Port
Use this port to connect a PS/2 mouse or keyboard.
USB 3.1 Gen 1 Port


SMA Antenna Connectors (2T2R)
Use this connector to connect an antenna.
DVI-D Port (Note)
The DVI-D port conforms to the DVI-D specification and supports a maximum resolution of
1920x1200@60 Hz (the actual resolutions supported depend on the monitor being used). Connect a
monitor that supports DVI-D connection to this port.
HDMI Port
The HDMI port is HDCP compliant and supports 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@24 Hz, but the actual resolutions supported are dependent on the monitor
being used.
(Note) The DVI-D port does not support D-Sub connection by adapter.
•After installing the HDMI device, make sure to set the default sound playback device to HDMI.
•
Tighten the antenna cables to the antenna connectors and then move the antenna to a place
where the signal is good.
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.
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
- 11 -

USB Type-C™Port
        

Center/Subwoofer Speaker Out (Orange)

Rear Speaker Out (Black)

Optical S/PDIF Out Connector
This connector provides digital audio out to an external audio system that supports digital optical audio.
Before using this feature, ensure that your audio system provides an optical digital audio in connector.
Line In (Blue)
The line in jack. Use this audio jack for line in devices such as an optical drive, walkman, etc.
Line Out (Green)
The line out jack. This jack supports audio amplifying function. For better sound quality, it is recommended
that you connect your headphone/speaker to this jack (actual effects may vary by the device being used).
Use this audio jack for a headphone or 2-channel speaker. This jack can be used to connect front speakers

Mic In (Pink)
The Mic in jack. Microphones must be connected to this jack.
•
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.
•
Audio Manager application.
•If you want to install a Side Speaker, you need to retask either the Line in or Mic in jack to be Side
Speaker out using the HD Audio Manager application.
•Please visit GIGABYTE's website for more audio software information.
- 12 -

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_FAN
5) BAT
6) SATA3 0/1/2/3/4/5
7) M.2
8) F_PANEL
9) F_AUDIO
10) SPEAKER
11) SPDIF_O
12) F_USB30
13) F_USB1
14) CLR_CMOS
15) CI
31 4
69
12
15 713
5
11
8
10
2
6
14
- 13 -

3/4) CPU_FAN/SYS_FAN (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 motherboard supports CPU fan speed control, which requires the use of a CPU
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.
•
SYS_FAN
CPU_FAN
G.QBOFM
1
G.QBOFM
1
G.QBOFM
131
2412
ATX
ATX:
Pin No.  Pin No. 
1 3.3V 13 3.3V
2 3.3V 14 -12V
3 GND 15 GND
4 +5V 16 PS_ON (soft On/Off)
5 GND 17 GND
6 +5V 18 GND
7 GND 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. 
1 GND
2 GND
3 +12V
4 +12V
ATX_12V
2
4
1
3
Pin No. 
1 GND
2 Voltage Speed Control
3 Sense
4 PWM Speed Control
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

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.
- 14 -

6) SATA3 0/1/2/3/4/5 (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 SATAconnector supports a single SATA device. The Intel®Chipset supports RAID 0,

a RAID array.
Pin No. 
1 GND
2 TXP
3 TXN
4 GND
5 RXN
6 RXP
7 GND
5) BAT (Battery)
 
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 cable:
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. Danger of explosion 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.
•When installing the battery, note the orientation of the positive side (+) and the negative side (-)
of the battery (the positive side should face up).
•Used batteries must be handled in accordance with local environmental regulations.
To enable hot-plugging for the SATA ports, refer to Chapter 2, "BIOS Setup," "Peripherals\SATA And

7
G.QBOFM
G.QBOFM
1
SATA3
1 0
3 2
SATA3
G.QBOFM
1
G.QBOFM
7
G.QBOFM
7
G.QBOFM
1
4
5
- 15 -

Select the proper hole for the M.2 SSD to be installed and refasten the screw and nut.
7) M.2 (M.2 Socket 3 Connector)
The M.2 connector (on the back of the motherboard) supports M.2 SATA SSDs and M.2 PCIe SSDs and
®Chipset. 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 and can only be used to

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 and nut from the motherboard. Locate the proper mounting hole

Step 2:
Slide the M.2 SSD into the connector at an angle.
Step 3:
Press the M.2 SSD down and then secure it with the screw.
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 M.2 connector shares bandwidth with the
SATA3 0 connector. Refer to the following table for details:
SATA3 0 SATA3 1 SATA3 2 SATA3 3 SATA3 4 SATA3 5
M.2 SATA SSD raaaaa
M.2 PCIe x4 SSD
aaaaaa
M.2 PCIe x2 SSD
aaaaaa
No M.2 SSD Installed aaaaaa
a: Available, r: Not available
Connector
Type of
M.2 SSD
- 16 -

8) 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.
1
2
9
10
NC
PLED-
PW-
PLED+
PW+
HD-
RES+
HD+
RES-
Power Switch
Hard Drive
Activity LED
Reset Switch
9) F_AUDIO (Front Panel Audio Header)
 
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.
For HD Front Panel Audio: ForAC'97 Front Panel Audio:
Pin No. 
1 MIC2_L
2 GND
3 MIC2_R
4 NC
5 LINE2_R
6 Sense
7 FAUDIO_JD
8 No Pin
9 LINE2_L
10 Sense
Pin No. 
1 MIC
2 GND
3 MIC Power
4 NC
5 Line Out (R)
6 NC
7 NC
8 No Pin
9 Line Out (L)
10 NC
•The front panel audio header supports HD audio by default.
•Audio signals will be present on both of the front and back panel audio connections simultaneously.
•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.
1
2
9
10
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.
•PW (Power Switch, Red):
 
system using the power switch (refer to Chapter 2, "BIOS Setup," "Power," for more information).
•HD (Hard Drive Activity LED, Blue):
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, Green):
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 (Purple):
No connection.
•PLED (Power LED, Yellow):
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).
System Status LED
S0 On
S3/S4/S5 Off
- 17 -

12) F_USB30 (USB 3.1 Gen 1 Header)
 
the optional 3.5" front panel that provides two USB 3.1 Gen 1 ports, please contact the local dealer.
Pin No.  Pin No. 
1 VBUS 11 D2+
2 SSRX1- 12 D2-
3 SSRX1+ 13 GND
4 GND 14 SSTX2+
5 SSTX1- 15 SSTX2-
6 SSTX1+ 16 GND
7 GND 17 SSRX2+
8 D1- 18 SSRX2-
9 D1+ 19 VBUS
10 NC 20 No Pin
10
1120
1
10) 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. 
1 VCC
2 NC
3 NC
4 SPK-
G.QBOFM
1
11) 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. 
1 SPDIFO
2 GND
1
Prior to installing the USB bracket, be sure to turn off your computer and unplug the power cord from the power
outlet to prevent damage to the USB bracket.
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14) CLR_CMOS (Clear CMOS Jumper)
 
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

Open: Normal
Short: Clear CMOS Values
13) F_USB1 (USB 2.0/1.1 Header)
 
optional USB bracket. For purchasing the optional USB bracket, please contact the local dealer.
Pin No.  Pin No. 
1 Power (5V) 6 USB DY+
2 Power (5V) 7 GND
3 USB DX- 8 GND
4 USB DY- 9 No Pin
5 USB DX+ 10 NC
•Do not plug the IEEE 1394 bracket (2x5-pin) cable into the USB header.
•Prior to installing the USB bracket, be sure to turn off your computer and unplug the power cord from the power
outlet to prevent damage to the USB bracket.
10 9
12
15) 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.
1Pin No. 
1 Signal
2 GND
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•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

When the power is turned off, the battery on the motherboard supplies the necessary power to the CMOS to

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
•

may result in system malfunction.
•It is recommended that you not alter the default settings (unless you need to) to prevent system instability or other
unexpected results. Inadequately altering the settings may result in system's failure to boot. If this occurs, try to
clear the CMOS values and reset the board to default values. (Refer to the "Load Optimized Defaults" section in
this chapter or introductions of the battery/clear CMOS jumper in Chapter 1 for how to clear the CMOS values.)
2-1 Startup Screen
The following startup Logo screen will appear when the computer boots.
(Sample BIOS Version: GA-Z270N-WIFI F1a)
Function Keys
There are two different BIOS modes as follows and you can use the <F2> key to switch between the two modes.
The Classic Setup mode provides detailed BIOS settings. You can press the arrow keys on your keyboard to move
among the items and press <Enter> to accept or enter a sub-menu. Or you can use your mouse to select the
item you want. Easy Mode allows users to quickly view their current system information or to make adjustments

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