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Product warranty or service will not be extended if: (1) the product is repaired, modied or altered, unless
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This product contains copyrighted software that is licensed under the General Public License (“GPL”),
under the Lesser General Public License Version (“LGPL”) and/or other Free Open Source Software
Licenses. Such software in this product is distributed without any warranty to the extent permitted by the
applicable law. Copies of these licenses are included in this product.
Where the applicable license entitles you to the source code of such software and/or other additional data,
you may obtain it for a period of three years after our last shipment of the product, either
(1) for free by downloading it from http://support.asus.com/download
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ii
Contents
Safety information ....................................................................................................... v
About this guide .......................................................................................................... v
Package contents ...................................................................................................... vii
Z170-AR specifications summary ............................................................................ vii
Chapter 1: Product Introduction
1.1 Before you proceed ...................................................................................1-1
ASUS contact information ...................................................................................... A-5
iv
Safety information
Electrical safety
• To prevent electrical shock hazard, disconnect the power cable from the electrical outlet
before relocating the system.
• When adding or removing devices to or from the system, ensure that the power cables
for the devices are unplugged before the signal cables are connected. If possible,
disconnect all power cables from the existing system before you add a device.
• Before connecting or removing signal cables from the motherboard, ensure that all
power cables are unplugged.
• Seek professional assistance before using an adapter or extension cord. These devices
could interrupt the grounding circuit.
• Ensure that your power supply is set to the correct voltage in your area. If you are not
sure about the voltage of the electrical outlet you are using, contact your local power
company.
• If the power supply is broken, do not try to x it by yourself. Contact a qualied service
technician or your retailer.
Operation safety
• Before installing the motherboard and adding components, carefully read all the manuals
that came with the package.
• Before using the product, ensure all cables are correctly connected and the power
cables are not damaged. If you detect any damage, contact your dealer immediately.
• To avoid short circuits, keep paper clips, screws, and staples away from connectors,
slots, sockets and circuitry.
• Avoid dust, humidity, and temperature extremes. Do not place the product in any area
where it may be exposed to moisture.
• Place the product on a stable surface.
• If you encounter technical problems with the product, contact a qualied service
technician or your retailer.
About this guide
This user guide contains the information you need when installing and conguring the
motherboard.
How this guide is organized
This guide contains the following parts:
•Chapter1:Productintroduction
This chapter describes the features of the motherboard and the new technology it
supports. It includes descriptions of the switches, jumpers, and connectors on the
motherboard.
•Chapter2:BIOSsetup
This chapter discusses changing system settings through the BIOS Setup menus.
Detailed descriptions for the BIOS parameters are also provided.
v
Where to find more information
Refer to the following sources for additional information and for product and software
updates.
1. ASUS websites
The ASUS website provides updated information on ASUS hardware and software
products. Refer to the ASUS contact information.
2. Optional documentation
Your product package may include optional documentation, such as warranty yers,
that may have been added by your dealer. These documents are not part of the
standard package.
Conventions used in this guide
To ensure that you perform certain tasks properly, take note of the following symbols used
throughout this manual.
DANGER/WARNING: Information to prevent injury to yourself when
completing a task.
CAUTION: Information to prevent damage to the components when
completing a task
IMPORTANT: Instructions that you MUST follow to complete a task.
NOTE: Tips and additional information to help you complete a task.
Typography
Bold text
Italics
<Key>Keys enclosed in the less-than and greater-than sign
<Key1> + <Key2> + <Key3>If you must press two or more keys simultaneously, the key
vi
Indicates a menu or an item to select.
Used to emphasize a word or a phrase.
means that you must press the enclosed key.
Example: <Enter> means that you must press the Enter or
Return key.
names are linked with a plus sign (+).
Package contents
Check your motherboard package for the following items:
Motherboard
Cables
ASUS Z170-AR Motherboard
2 x Serial ATA 6.0 Gb/s cables
1 x ASUS SLI bridge connector
Accessories
2-in-1 Q-connector
M.2 screw package
CPU installation tool
Application DVD
Documentation
If any of the above items is damaged or missing, contact your retailer.
- Pipe music or movies from your PC to a smart TV, your entertainment goes
wherever you go!
- Media Streamer app for portable smartphone/tablet, supporting iOS 7 &
Android 4.0 systems
HyStream
- Stream iOS devices’ screen on your PC screen.*
* Contact your device vendor for supporting information.
(continued on the next page)
ix
Z170-AR specifications summary
eSports Champions
Turbo LAN
- Fast and smooth online gaming with lower pings and less lags
Crystal Sound 3
- Hear the cleanest sound with dedicated audio design onboard!
Turbo APP
- Tailored app performance, network priority and audio conguration for your
needs
EZ DIY
ASUS
Exclusive
Features
ASUS Special
Features
Push Notice
- Monitor your PC status with smart devices in real time
USB BIOS Flashback Card supported
UEFI BIOS EZ Mode featuring friendly graphics user interface
- TPU
- CrashFree BIOS 3
- EZ Flash 3
ASUS Q-Design
- ASUS Q-LED (CPU, DRAM, VGA, Boot Device LED)
- ASUS Q-Slot
- ASUS Q-DIMM
- ASUS Q-Connector
ASUS 5X Protection
- ASUS DIGI+ VRM - 8 Phase digital power design
- ASUS Enhanced DRAM Overcurrent Protection - Short circuit damage
prevention
- ASUS ESD Guards - Enhanced ESD protection
- ASUS High-Quality 5K-Hour Solid Capacitors - 2.5x long lifespan with excellent
durability
- ASUS Stainless Steel Back I/O - 3x more durable corrosion-resistant coating
Special Features
- Mobo Connect
- LAN Guard
- USB 3.1 Boost
- Ai Charger+
- AI Suite 3
- MemOK!
- EZ XMP
(continued on the next page)
x
Z170-AR specifications summary
ASUS Quiet
Thermal
Solution
ASUS
Exclusive
Overclocking
Features
Rear Panel I/O
Ports
Internal I/O
Connectors
Quiet Thermal Design:
- ASUS Fan Xpert 3
- ASUS Fanless Design: Heat-sink solution
Precision Tweaker 2:
- CPU Core/Cache Voltage: Adjustable CPU Core/Cache Voltage at 0.005V
increment
- CPU Graphics Voltage: Adjustable CPU Graphics voltage at 0.005V increment
- CPU VCCIO Voltage: Adjustable CPU VCCIO Voltage at 0.0125V increment
- CPU System Agent Voltage: Adjustable CPU System Agent Voltage at
0.0125V increment
- DRAM Voltage: 152-step Memory voltage control
- PCH Core Voltage: 88-step Chipset voltage control
SFS (Stepless Frequency Selection)
- BCLK/PCIE frequency tuning from 40MHz up to 500MHz at 0.01MHz
increment
Overclocking Protection:
- ASUS C.P.R.(CPU Parameter Recall)
1 x PS/2 Keyboard/mouse combo port
1 x DisplayPort
1 x HDMI port
1 x Optical S/PDIF out
1 x Intel LAN (RJ45) ports
1 x USB 3.1/3.0/2.0 ports (teal blue, Type A)
1 x USB 3.1/3.0/2.0 ports (Type C)
2 x USB 3.0/2.0 ports (blue)
2 x USB 2.0 ports
8-channel Audio I/O ports
2 x USB 3.0/2.0 connectors support additional 4 USB ports (19-pin)
2 x USB 2.0/1/1 connectors support additional 4 USB ports
1 x M.2 Socket 3 (for M Key, type 2242/2260/2280/22110 storage devices)
1 x SATA Express connectors (gray)
4 x SATA 6.0Gb/s connectors (gray)
1 x CPU Fan connector (4-pin) for both 3-pin(DC mode) and 4-pin(PWM mode)
CPU coolers control with auto detection support
1 x CPU OPT Fan connector (4-pin)
1 x Water Pump header (3-pin)
4 x Chassis Fan connectors (4-pin) for both 3-pin(DC mode) and 4-pin(PWM
mode) coolers control
1 x Front panel audio connector (AAFP)
(continued on the next page)
xi
Z170-AR specifications summary
1 x BIOS Flashback header
1 x S/PDIF out header
1 x Thunderbolt header (5-pin) for ASUS ThunderboltEX series support
1 x TPM connector
1 x COM port
1 x 24-pin EATX Power connector
Internal I/O
Connectors
BIOS Features
Manageability
Accessories
Support DVD
Operating
System
Support
Form Factor
1 x 8-pin EATX 12V Power connector
1 x System Panel(Q-Connector)
1 x MemOK! button
1 x Clear CMOS jumper
1 x DRCT(Direct Key) connector
1 x TPU switch (advanced two-stage adjustments)
1 x EZ XMP switch
1 x Power-on button
1 x 5-pin EXT_FAN(Extension Fan) connector
128 Mb Flash ROM, UEFI AMI BIOS, PnP, DMI3.0, WfM2.0, SM BIOS 3.0, ACPI
5.0, Multi-language BIOS,
ASUS EZ Flash 3, CrashFree BIOS 3, F11 EZ Tuning Wizard, F6 Qfan Control,
F3 My Favorites, Quick Note, Last Modied log,
F12 PrintScreen and ASUS DRAM SPD (Serial Presence Detect) memory
information
WfM 2.0, DMI 3.0, WOL by PME, PXE
2 x Serial ATA 6.0Gb/s cables
1 x ASUS SLI bridge connector
1 x 2 in 1 Q-connector
1 x M.2 screw package
1 x CPU installation tool
1 x User’s manual
1 x Z170 Series Exclusive Feature manual
Drivers
ASUS Utilities
EZ Update
Anti-virus software (OEM version)
Windows® 10*
Windows® 8.1*
Windows® 7
*64-bit supported only
ATX Form Factor, 12”x 9.6” (30.5cm x 24.4cm)
Specications are subject to change without notice.
xii
Chapter 1: Product Introduction
Product Introduction
1
1.1 Before you proceed
Take note of the following precautions before you install motherboard components or change
any motherboard settings.
• Unplug the power cord from the wall socket before touching any component.
• Before handling components, use a grounded wrist strap or touch a safely grounded
object or a metal object, such as the power supply case, to avoid damaging them due
to static electricity.
• Hold components by the edges to avoid touching the ICs on them.
• Whenever you uninstall any component, place it on a grounded antistatic pad or in the
bag that came with the component.
• Before you install or remove any component, ensure that the ATX power supply is
switched off or the power cord is detached from the power supply. Failure to do so
may cause severe damage to the motherboard, peripherals, or components.
1.2 Motherboard overview
Before you install the motherboard, study the conguration of your chassis to ensure that the
motherboard ts.
Unplug the power cord before installing or removing the motherboard. Failure to do so can
cause you physical injury and damage to motherboard components.
1.2.1 Placement direction
When installing the motherboard, place it into the chassis in the correct orientation. The edge
with external ports goes to the rear part of the chassis.
1.2.2 Screw holes
Place nine screws into the holes indicated by circles to secure the motherboard to the
chassis.
Do not overtighten the screws! Doing so can damage the motherboard.
ASUS Z170-AR Series
1-1
Place this side towards the
rear of the chassis
1.2.3 Motherboard layout
1-2
Chapter 1: Product Introduction
1.2.4 Layout contents
Connectors/Jumpers/Slots/LEDPage
1. ATX power connectors (24-pin EATXPWR, 8-pin EATX12V)
2.Intel® LGA1151 CPU socket 1-4
3.CPU, water pump, CPU optional, extension, and chassis fan connectors
(4-pin CPU_FAN; 3-pin W_PUMP; 4-pin CPU_OPT; 5-pin EXT_FAN; 4-pin
CHA_FAN1-4)
4.DDR4 DIMM slots1-8
5.MemOK! button1-36
6.USB 3.0 connectors (20-1 pin USB3_12, USB3_34)
7. Intel® Z170 Serial ATA 6.0 Gb/s connectors (7-pin SATA6G_12,
SATA6G_34, SATA6G_56, SATA Express)
8.M.2 Socket 31-28
9.TPU switch1-37
10. Clear RTC RAM (2-pin CLRTC)1-19
11. System panel connector (20-3 pin PANEL)1-30
12. DirectKey connector (2-pin DRCT) 1-28
13. EZ XMP switch1-38
14. USB 2.0 connectors (10-1 pin USB1112, USB1314) 1-29
15. Thunderbolt header (5-pin TB_HEADER)1-32
16. TPM connector (14-1 pin TPM)1-29
17. Power-on button1-38
18. Serial port connector (10-1 pin COM)1-23
19. Front panel audio connector (10-1 pin AAFP)1-27
20. Digital audio connector (4-1 pin SPDIF_OUT)1-27
21. Flashback header (12-1 pin FLBK_HEADER)1-33
22. T_Sensor connector (2-pin T_SENSOR)1-32
23. CPU Over Voltage jumper (3-pin CPU_OV)1-20
1-26
1-25
1-31
1-24
ASUS Z170-AR Series
1-3
1.3 Central Processing Unit (CPU)
The motherboard comes with a surface mount LGA1151 socket designed for the 6th
Generation Intel® Core™ i7 / Intel® Core™ i5 / Intel® Core™ i3, Pentium®, and Celeron®
processors.
Ensure that you install the correct CPU designed for LGA1151 socket only. DO NOT install
a CPU designed for other sockets on the LGA1151 socket.
• Ensure that all power cables are unplugged before installing the CPU.
• Upon purchase of the motherboard, ensure that the PnP cap is on the socket and
the socket contacts are not bent. Contact your retailer immediately if the PnP cap
is missing, or if you see any damage to the PnP cap/socket contacts/motherboard
components. ASUS will shoulder the cost of repair only if the damage is shipment/
transit-related.
• Keep the cap after installing the motherboard. ASUS will process Return Merchandise
Authorization (RMA) requests only if the motherboard comes with the cap on the
LGA1150 socket.
• The product warranty does not cover damage to the socket contacts resulting from
incorrect CPU installation/removal, or misplacement/loss/incorrect removal of the PnP
cap.
1-4
Chapter 1: Product Introduction
1.3.1 Installing the CPU
Top of CPU
Bottom of CPU
ASUS Z170-AR Series
Bottom of CPU
1-5
Top of CPU
1-6
Chapter 1: Product Introduction
1.3.2 CPU heatsink and fan assembly installation
Apply the Thermal Interface Material
to the CPU heatsink and CPU
before you install the heatsink and
fan, if necessary.
To install the CPU heatsink and fan assembly
ASUS Z170-AR Series
1-7
To uninstall the CPU heatsink and fan assembly
1.4 System memory
1.4.1 Overview
The motherboard comes with four Double Data Rate 4 (DDR4) Dual Inline Memory Modules
(DIMM) slots.
A DDR4 module is notched differently from a DDR, DDR2, or DDR3 module. DO NOT
install a DDR, DDR2, or DDR3 memory module to the DDR4 slot.
1-8
Chapter 1: Product Introduction
Recommended memory configurations
1.4.2 Memory configurations
You may install 1 GB, 2 GB, 4 GB, 8GB, and 16 GB unbuffered non-ECC DDR4 DIMMs into
the DIMM sockets. You can refer to the recommended memory population below.
• You may install varying memory sizes in Channel A and Channel B. The system
maps the total size of the lower-sized channel for the dual-channel conguration. Any
excess memory from the higher-sized channel is then mapped for single-channel
operation.
• Always install DIMMs with the same CAS latency. For optimal compatibility, we
recommend that you install memory modules of the same version or date code (D/C)
from the same vendor. Check with the retailer to get the correct memory modules.
• Due to the memory address limitation on 32-bit Windows® OS, when you install 4GB
or more memory on the motherboard, the actual usable memory for the OS can be
about 3GB or less. For effective use of memory, we recommend that you do any of the
following:
a) Use a maximum of 3GB system memory if you are using a 32-bit Windows® OS.
b) Install a 64-bit Windows® OS when you want to install 4 GB or more on the
motherboard.
c) For more details, refer to the Microsoft® support site at http://support.microsoft.
com/kb/929605/en-us.
• This motherboard does not support DIMMs made up of 512 Mb (64 MB) chips or less.
• The default memory operation frequency is dependent on its Serial Presence Detect
(SPD), which is the standard way of accessing information from a memory module.
Under the default state, some memory modules for overclocking may operate at a
lower frequency than the vendor-marked value. To operate at the vendor-marked
or at a higher frequency, refer to section 2.5 Ai Tweaker menu for manual memory
frequency adjustment.
• For system stability, use a more efcient memory cooling system to support a full
memory load (4 DIMMs).
• Visit the ASUS website at: www.asus.com for the latest QVL.
In the future, you may need to install expansion cards. The following sub-sections describe
the slots and the expansion cards that they support.
Unplug the power cord before adding or removing expansion cards. Failure to do so may
cause you physical injury and damage motherboard components.
1.5.1 Installing an expansion card
To install an expansion card:
1. Before installing the expansion card, read the documentation that came with it and
make the necessary hardware settings for the card.
2. Remove the system unit cover (if your motherboard is already installed in a chassis).
3. Remove the bracket opposite the slot that you intend to use. Keep the screw for later
use.
4. Align the card connector with the slot and press rmly until the card is completely
seated on the slot.
5. Secure the card to the chassis with the screw you removed earlier.
6. Replace the system cover.
1-16
Chapter 1: Product Introduction
1.5.2 Configuring an expansion card
After installing the expansion card, congure it by adjusting the software settings:
1. Turn on the system and change the necessary BIOS settings, if any. See Chapter 2 for
information on BIOS setup.
2. Assign an IRQ to the card.
3. Install the software drivers for the expansion card.
When using PCI cards on shared slots, ensure that the drivers support “Share IRQ” or that
the cards do not need IRQ assignments. Otherwise, conicts arise between the two PCI
groups, making the system unstable and the card inoperable.
1.5.3 PCI slot
The PCI slot supports cards such as a LAN card, SCSI card, USB card, and other cards that
comply with PCI specications.
1.5.4 PCI Express 3.0 / 2.0 x1 slots
This motherboard supports PCI Express x1 network cards, SCSI cards, and other cards that
comply with the PCI Express specications.
1.5.5 PCI Express 3.0 / 2.0 x16 slots
This motherboard supports PCI Express x16 network cards, SCSI cards, and other cards that
comply with the PCI Express specications.
ASUS Z170-AR Series
Slot No. Expansion slot
PCIe 3.0/2.0 x1_1 slot
PCIe 3.0/2.0 x16_1 slot
PCIe 3.0/2.0 x1_2 slot
PCI slot
PCIe 3.0/2.0 x16_2 slot
PCIe 3.0/2.0 x1_3 slot
PCIe 3.0/2.0 x16_3 slot
1-17
VGA configuration
PCI Express 3.0 operating mode
PCIe 3.0/2.0 x16_1PCIe 3.0/2.0 x16_2
Single VGA/PCIe card
Dual VGA/PCIe cardx8x8
• We recommend that you provide sufcient power when running CrossFireX™ or SLI™
mode.
• Connect a chassis fan to the motherboard connector labeled CHA_FAN1-4 when
using multiple graphics cards for better thermal environment.