Asus Q170M-CM-B User manual

Motherboard
Q170M-CM-B

ii
E11751
First Edition
July 2016
Copyright © 2016 ASUSTeK COMPUTER INC. All Rights Reserved.
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Product warranty or service will not be extended if: (1) the product is repaired, modied or altered, unless
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iii
Contents
Safety information ...................................................................................... iv
About this guide ......................................................................................... iv
Package contents ....................................................................................... vi
Q170M-CM-B specifications summary ..................................................... vi
Chapter 1: Product introduction
Motherboard overview ............................................................................. 1-1
Central Processing Unit (CPU) ................................................................ 1-7
System memory........................................................................................ 1-8
Chapter 2: BIOS information
BIOS setup program................................................................................. 2-1
EZ Mode..................................................................................................... 2-2
Advanced Mode ........................................................................................ 2-3
Exit menu................................................................................................... 2-4
Appendices
Notices.......................................................................................................A-1
ASUS contact information .......................................................................A-4

iv
Safety information
Electrical safety
• To prevent electrical shock hazard, disconnect the power cable from the electrical outlet
before relocating the system.
• When adding or removing devices to or from the system, ensure that the power cables
for the devices are unplugged before the signal cables are connected. If possible,
disconnect all power cables from the existing system before you add a device.
• Before connecting or removing signal cables from the motherboard, ensure that all
power cables are unplugged.
• Seek professional assistance before using an adapter or extension cord. These devices
could interrupt the grounding circuit.
• Ensure that your power supply is set to the correct voltage in your area. If you are not
sure about the voltage of the electrical outlet you are using, contact your local power
company.
• If the power supply is broken, do not try to x it by yourself. Contact a qualied service
technician or your retailer.
Operation safety
• Before installing the motherboard and adding components, carefully read all the manuals
that came with the package.
• Before using the product, ensure all cables are correctly connected and the power
cables are not damaged. If you detect any damage, contact your dealer immediately.
• To avoid short circuits, keep paper clips, screws, and staples away from connectors,
slots, sockets and circuitry.
• Avoid dust, humidity, and temperature extremes. Do not place the product in any area
where it may be exposed to moisture.
• Place the product on a stable surface.
• If you encounter technical problems with the product, contact a qualied service
technician or your retailer.
About this guide
This user guide contains the information you need when installing and conguring the
motherboard.
How this guide is organized
This guide contains the following parts:
• Chapter1:Productintroduction
This chapter describes the features of the motherboard and the new technology it
supports. It includes descriptions of the switches, jumpers, and connectors on the
motherboard.
• Chapter2:BIOSinformation
This chapter discusses changing system settings through the BIOS Setup menus.
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 Indicates a menu or an item to select.
Italics Used to emphasize a word or a phrase.
<Key> Keys enclosed in the less-than and greater-than sign
means that you must press the enclosed key.
Example: <Enter> means that you must press the Enter or
Return key.
<Key1> + <Key2> + <Key3> If you must press two or more keys simultaneously, the key
names are linked with a plus sign (+).

vi
Q170M-CM-B specifications summary
(continued on the next page)
Package contents
Check your motherboard package for the following items.
Motherboard ASUS Q170M-CM-B motherboard
Cables 2 x Serial ATA 6.0 Gb/s cables
Accessories 1 x I/O Shield
Application DVD Support DVD
If any of the above items is damaged or missing, contact your retailer.
CPU
LGA1151 socket for 6th Generation Intel®Core™ i7 / i5 / i3, Pentium®, and
Celeron®processors
Supports Intel®14nm CPU
Supports Intel®Turbo Boost Technology 2.0*
* The Intel®Turbo Boost Technology 2.0 support depends on the CPU types.
** Refer to www.asus.com for Intel®CPU support list.
Chipset Intel®Q170 Chipset
Memory
4 x DIMM, maximum 64 GB, DDR4 2133 MHz, non-ECC, un-buffered memory
Supports Intel® Extreme Memory Prole (XMP)
* Hyper DIMM support is subject to the physical characteristics of individual CPUs.
** Refer to www.asus.com for the latest Memory QVL (Qualified Vendors List).
*** The maximum memory frequency supported varies by processor.
**** To prevent system instability, either install DDR4L DIMMs or DDR4 DIMMs with voltage
lower than 1.5V.
Graphics
Integrated graphics processor - Intel®HD Graphics support
Multi-VGA output support: DisplayPort, HDMI, DVI-I ports
- Supports DisplayPort with maximum resolution of 4096 x 2304 @ 60Hz
- Supports HDMI with maximum resolution 4096 x 2160 @ 24Hz / 2560 x 1600 @
60Hz
- Supports DVI-I with maximum resolution 1920 x 1200 @ 60Hz
Supports Intel® InTruTM 3D, Quick Sync Video, Intel® Clear Video HD Technology, and
Intel® InsiderTM
Supports up to 3 displays simultaneously
Maximum shared memory of 1024 MB
Expansion
slots
1 x PCI Express 3.0/2.0 x16 slot (at x16 mode)
1 x PCI Express 3.0/2.0 x16 slot (max at x8 mode)
2 x PCI Express 3.0/2.0 x1 slots
1 x Mini-PCI Express 3.0/2.0 x1 slot (Half-length, Wi-Fi support)

vii
Q170M-CM-B specifications summary
(continued on the next page)
Storage
Intel®Q170 Chipset:
- 6 x SATA 6.0 Gb/s ports
- 1 x M.2 Socket 3 with M key, type 2242/2260/2280 storage devices support
(both SATA & PCIE mode)*
* M.2 shares SATA mode with SATA ports. Change this item before installing M.2 SATA
devices.
LAN
Dual LAN support
- Intel®I219LM, 1 x Gigabit LAN controller
- Intel®I210AT, 1 x Gigabit LAN controller
ASUS LAN Guard
Audio Realtek® ALC887 8-channel High Denition Audio CODEC
- Supports Jack-Detection and Front Panel Jack-Retasking
USB
Intel®Q170 Chipset
- 8 x USB 3.0/2.0 ports (4 ports at mid-board; 4 ports at the rear panel)
- 2 x USB 2.0/1.1 ports (2 ports at mid-board)
ASUS unique
features
ASUS Exclusive Features
- ASUS Ai Charger
- ASUS AI Suite 3
- ASUS Disk Unlocker featuring 3TB + HDD support
- Anti Surge
EZ DIY
Push Notice
- Monitor your PC status with smart devices in real time
UEFI BIOS EZ Mode
- Featuring friendly graphics user interface
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 3
ASUS Q-Design
- ASUS Q-DIMM
- ASUS Q-Slot
Rear panel
I/O ports
1 x PS/2 Keyboard port (Purple)
1 x PS/2 Mouse port (Green)
1 x DisplayPort
1 x HDMI port
1 x DVI-I port
2 x LAN (RJ-45) ports
4 x USB 3.0 ports (blue)
3 x Audio jacks

viii
Q170M-CM-B specifications summary
Internal
connectors
2 x USB 3.0 connectors support additional 4 USB 3.0 ports
1 x USB 2.0 connector supports additional 2 USB 2.0 ports
6 x SATA 6Gb/s connectors
1 x M.2 Socket 3, with M key, type 2242/2260/2280 storage devices support (both
SATA & PCIE mode)
1 x M.2 Socket 1, with E key, type 2230 Wi-Fi devices support
1 x CPU Fan connector (4-pin)
2 x Chassis Fan connectors (4-pin)
1 x Front panel audio connector (AAFP)
1 x System panel connector
1 x 24-pin ATX power connector
1 x 8-pin EATX 12V power connector
1 x Internal speaker connector
5 x COM connectors
1 x LPT connector
1 x Chassis Intrusion header
1 x Mono out header*
2 x 4-pin LAN activity headers
1 x LPC debug header
TPM 2.0 IC Onboard
* We recommend that you use this header with an amplified speaker.
BIOS features
128 Mb Flash ROM, UEFI AMI BIOS, PnP, DMI 3.0, WfM2.0, SM BIOS 3.0, ACPI
5.0, Multi-language BIOS, ASUS EZ Flash 3, ASUS CrashFree BIOS 3, F11 EZ
Tuning Wizard, F6 Qfan Control, F3 My Favorites, Quick Note, Last Modied Log,
F12 PrintScreen function, and ASUS DRAM SPD (Serial Presence Detect) memory
information
Manageability WfM 2.0, DMI 3.0, WOL by PME, PXE
Support DVD
Drivers
ASUS utilities
EZ Update
Anti-virus software (OEM version)
OS support
Windows®10 (64-bit)
Windows®8.1 (64-bit)
Windows®7 (32-bit / 64-bit)*
* Please refer to ASUS website and download “Window®7 installation guide” and “ASUS
EZ installer” to install Windows®7.
Form factor uATX form factor: 9.6 in. x 9.6 in. (24.4 cm x 24.4 cm)
Specications are subject to change without notice.

ASUS Q170M-CM-B 1-1
Product introduction
1
Motherboard overview
• Unplugthepowercordfromthewallsocketbeforetouchinganycomponent.
• Beforehandlingcomponents,useagroundedwriststraportouchasafelygrounded
objectorametalobject,suchasthepowersupplycase,toavoiddamagingthemdue
tostaticelectricity.
• Beforeyouinstallorremoveanycomponent,ensurethattheATXpowersupplyis
switchedofforthepowercordisdetachedfromthepowersupply.Failuretodoso
maycauseseveredamagetothemotherboard,peripherals,orcomponents.
• Unplugthepowercordbeforeinstallingorremovingthemotherboard.Failuretodoso
cancauseyouphysicalinjuryanddamagetomotherboardcomponents.
Place this
side towards
the rear of the
chassis
ScantheQRcodetogetthedetailedpindenitions.
Q170M-CM-B
PCIEX16_1
ASM1480 ASM1480 ASM1480
ASM1480
PCIEX16_2
PCIEX1_1
PCIEX1_2
F_PANEL
CLRTC
DIS_ME
SPEAKER
LANLED2 LANLED1
LPT
USB1314
USB3_910
USB3_12
AAFP
COM2
COM1
COM4
COM3
COM5
EATXPWR
CPU_FAN
CHA_FAN1 CHA_FAN2
LANGuard
LANGuard
BATTERY
Super
I/O
ALC
887
MONO_OUT
I219LM
I210AT
DIGI
+VRM
ASM
1442K
LGA1151
Intel®
Q170
DDR4 DIMM_A1 (64bit, 288-pin module) DDR4 DIMM_A2 (64bit, 288-pin module) DDR4 DIMM_B1 (64bit, 288-pin module) DDR4 DIMM_B2 (64bit, 288-pin module)
SATA6G_4 SATA6G_1
SATA6G_5 SATA6G_2
SATA6G_6 SATA6G_3
AUDIO
KBMS
LAN1_USB3_34
LAN2_USB3_78
HDMI_DP
24.4cm(9.6in)
128Mb
BIOS
EATX12V
CHASSIS
DVI-I
24.4cm(9.6in)
M.2(WIFI)
WLAN
M.2(SOCKET3)
22602280 2242
3 2 421 5 76
1
8
9
2
1415
12
11
10
1316179181920
21
8
22
21

1-2 Chapter 1: Product introduction
ATX power connectors (24-pin EATXPWR, 8-pin EATX12V)
CorrectlyorienttheATXpowersupplyplugsintotheseconnectorsandpushdown
rmlyuntiltheconnectorscompletelyt.
• Forafullyconguredsystem,werecommendthatyouuseapowersupply
unit(PSU)thatcomplieswithATX12VSpecication2.0(orlaterversion)
andprovidesaminimumpowerof350W.
• Ifyouareuncertainabouttheminimumpowersupplyrequirementforyour
system,refertotheRecommendedPowerSupplyWattageCalculator
athttp://support.asus.com/PowerSupplyCalculator/PSCalculator.
aspx?SLanguage=en-usfordetails.
CPU and chassis fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN1/2)
Connectthefancablestothefanconnectorsonthemotherboard,ensuringthat
theblackwireofeachcablematchesthegroundpinoftheconnector.
Donotforgettoconnectthefancablestothefanconnectors.Insufcientair
owinsidethesystemmaydamagethemotherboardcomponents.Theseare
notjumpers!Donotplacejumpercapsonthefanconnectors!TheCPU_FAN
connectorsupportsaCPUfanofmaximum1A(12W)fanpower.
Intel®LGA1151 CPU socket
InstallIntel®LGA1151CPUintothissurfacemountLGA1151socket,whichis
designedfor6thGenerationIntel®Core™i7/i5/i3,Pentium®,andCeleron®
processors.
Formoredetails,refertoCentral Processing Unit (CPU).
M.2 socket 3
ThissocketallowsyoutoinstallanM.2(NGFF)SSDmodule.
• ThissocketsupportsMKeyand2242/2260/2280
storagedevices.
• WhenusingIntel®DesktopResponsiveness
technologieswithPCIeM.2device,ensuretoset
uptheWindows®UEFIoperatingsystemunder
RAIDmode.
M.2(SOCKET3)
DDR4 DIMM slots
Install2GB,4GB,8GB,and16GBunbufferednon-ECCDDR4DIMMsintothese
DIMMsockets.
Formoredetails,refertoSystem memory.

ASUS Q170M-CM-B 1-3
Mini PCIe slot
ThisslotallowsyoutoinstallaminiPCIemoduleintoyourmotherboard.
TheminiPCIemoduleispurchasedseparately.
M.2 socket 1, E Key
ThissocketallowsyoutoinstallanM.2EkeyWi-FiandWi-Fibasedcombodevice.
Serial port connectors (10-1 pin COM1~5)
Connecttheserialportmodulecabletooneoftheseconnectors,theninstallthe
moduletoaslotopeningatthebackofthesystemchassis.
USB 3.0 connectors (20-1 pin USB3_12, USB3_910)
ConnectaUSB3.0moduletotheseconnectorsforadditionalUSB3.0front
orrearpanelports.TheseconnectorscomplywithUSB3.0specicationsand
providefasterdatatransferspeedsofupto5Gbps,fasterchargingtimeforUSB-
chargeabledevices,optimizedpowerefciency,andbackwardcompatibilitywith
USB2.0.
Chassis intrusion header (4-1 pin CHASSIS)
Thisheaderisforachassis-mountedintrusiondetectionsensororswitch.Connect
oneendofthechassisintrusionsensororswitchcabletothisheader.Thechassis
intrusionsensororswitchsendsahigh-levelsignaltothisheaderwhenachassis
componentisremovedorreplaced.Thesignalisthengeneratedasachassis
intrusionevent.
Bydefault,thepinlabeled“ChassisSignal”and“Ground”areshortedwithajumper
cap.Removethejumpercapsonlywhenyouintendtousethechassisintrusion
detectionfeature.
Speaker connector (4-pin SPEAKER)
The4-pinconnectorisforthechassis-mountedsystemwarningspeaker.The
speakerallowsyouhearsystembeepsandwarnings.
Intel®Q170 Serial ATA 6.0Gb/s connectors (7-pin SATA6G_1~6)
TheseconnectorsconnecttoSerialATA6.0Gb/sharddiskdrivesviaSerialATA
6.0Gb/ssignalcables.
System panel connector (10-1 pin F_PANEL)
Thisconnectorsupportsseveralchassis-mountedfunctions.

1-4 Chapter 1: Product introduction
Clear RTC RAM (2-pin CLRTC)
ThisheaderallowsyoutocleartheCMOSRTCRAMdataof
thesystemsetupinformationsuchasdate,time,andsystem
passwords.
To erase the RTC RAM:
1. TurnOFFthecomputerandunplugthepowercord.
2. Useametalobjectsuchasascrewdrivertoshortthetwo
pins.
3. PlugthepowercordandturnONthecomputer.
4. Holddownthe<Del>keyduringthebootprocessandenter
BIOSsetuptore-enterdata.
CLRTC
+3V_BAT GND
PIN 1
Ifthestepsabovedonothelp,removetheonboardbatteryandshortthetwopins
againtocleartheCMOSRTCRAMdata.AfterclearingtheCMOS,reinstallthe
battery.
Intel®ME jumper (3-pin DIS_ME)
ThisjumperallowsyoutoenableordisabletheIntel®MEfunction.Setthis
jumpertopins1-2toenable(default)theIntel®MEfunctionandtopins2-3to
disableit.
USB 2.0 connector (10-1 pin USB1314)
ConnecttheUSBmodulecabletothisconnector,theninstallthemoduletoaslot
openingatthebackofthesystemchassis.ThisUSBconnectorcomplieswith
USB2.0specicationsandsupportsupto480Mbpsconnectionspeed.
LAN LED connectors (4-pin LANLED1, 4-pin LANLED2)
TheseconnectorsareforGigabitLANactivityLEDsonthe
frontpanel.ConnecttheLANLEDcabletothebackplane
forLANactivityindication.
L_ACTLEDP_HD L_ACTLEDN_HD L_LINK1000#_HD L_LINK100#_HD
A+
A-
L1000
L100
LPT connector (26-1 pin LPT)
ConnectaparrallelportdevicesuchasaprintertothisLPT(LinePrinting
Terminal)connector.
Mono out header (2-pin MONO_OUT)
Thisinternalmonooutheaderallowsconnectiontoaninternal,lowpower
speakerforbasicsystemsoundcapability.Thesubsystemiscapableofdrivinga
speakerloadof4Ohmsat2Watts(rms).

ASUS Q170M-CM-B 1-5
IRQ assignments for this motherboard
A B C D
SATAController shared –––
PCIEx16_1 shared –––
Realtek8111HLANController –––shared
High-DenitionAudio shared –––
XHCIController shared –––
PCIEx1_1 shared –––
PCIEx1_2 –shared – –
Front panel audio connector (10-1 pin AAFP)
Thisconnectorisforachassis-mountedfrontpanelaudioI/Omodulethatsupports
eitherHDAudioorlegacyAC`97audiostandard.Connectoneendofthefront
panelaudioI/Omodulecabletothisconnector.
• Werecommendthatyouconnectahigh-denitionfrontpanelaudio
moduletothisconnectortoavailofthemotherboard’shigh-denitionaudio
capability.
• Ifyouwanttoconnectahigh-denitionfrontpanelaudiomoduleto
thisconnector,settheFrontPanelTypeitemintheBIOSsetupto[HD
Audio].IfyouwanttoconnectanAC’97frontpanelaudiomoduletothis
connector,settheitemto[AC97].Bydefault,thisconnectorissetto[HD
Audio].
PCI Express 3.0/2.0 x16 slots
ThismotherboardhastwoPCIExpress3.0/2.0x16slotsthatsupportPCIExpress
3.0/2.0x16graphiccardscomplyingwiththePCIExpressspecications.
PCI Express 2.0 x1 slots
ThismotherboardsupportsPCIExpressx1networkcards,SCSIcards,andother
cardsthatcomplywiththePCIExpressspecications.
• InsingleVGAcardmode,usethePCIe3.0/2.0x16_1slot(gray)foraPCIExpress
x16graphicscardtogetbetterperformance.
• Werecommendthatyouprovidesufcientpowerwhenusingmultiplegraphicscards.
Seepage1-3fordetails.
• ConnectachassisfantothemotherboardconnectorlabeledCHA_FAN1/2when
usingmultiplegraphicscardsforbetterthermalenvironment.
VGA configuration PCI Express operating mode
PCIe 3.0/2.0 x16_1 (gray) PCIe 3.0/2.0 x16_2 (black)
Single VGA/PCIe card x16(Recommendedfor
singleVGAcard) N/A
Dual VGA/PCIe card x16 x8

1-6 Chapter 1: Product introduction
Rear panel connectors
5. Line In port (light blue).Thisportconnectstothetape,CD,DVDplayer,orother
audiosources.
6. Line Out port (lime).Thisportconnectstoaheadphoneoraspeaker.Inthe4.1,5.1
and7.1-channelcongurations,thefunctionofthisportbecomesFrontSpeakerOut.
7. Microphone port (pink).Thisportconnectstoamicrophone.
Refertotheaudiocongurationtableforthefunctionoftheaudioportsin2.1,4.1,5.1,or
7.1-channelconguration.
5 6
78
1
10 9
2 3 4
1. PS/2 mouse port (green).ThisportisforaPS/2mouse.
2. DisplayPort.ThisportisforaDisplayPort-compatibledevices.
3. HDMI port.ThisportisforaHigh-DenitionMultimediaInterface(HDMI)connector,
andisHDCPcompliantallowingplaybackofHDDVD,Blu-ray,andotherprotected
content.
4. LAN (RJ-45) ports.TheseportsallowGigabitconnectiontoa
LocalAreaNetwork(LAN)throughanetworkhub.

LAN port LED indications
Activity/Link LED Speed LED
Status Description Status Description
Off Nolink OFF 10Mbpsconnection
Orange Linked ORANGE 100Mbpsconnection
Orange(Blinking) Dataactivity GREEN 1Gbpsconnection
Orange(Blinking
thensteady)
Readytowakeup
fromS5mode
_ _
LAN port
Speed
LED
Activity Link
LED

ASUS Q170M-CM-B 1-7
Audio 2.1, 4.1, 5.1, or 7.1-channel configuration
Port Headset
2.1-channel 4.1-channel 5.1-channel 7.1-channel
LightBlue(Rearpanel) LineIn RearSpeakerOut RearSpeakerOut RearSpeakerOut
Lime(Rearpanel) LineOut FrontSpeakerOut FrontSpeakerOut FrontSpeakerOut
Pink(Rearpanel) MicIn MicIn Bass/Center Bass/Center
Lime(Frontpanel) ---SideSpeakerOut
To configure a 7.1-channel audio output:
 UseachassiswithHDaudiomoduleinthefrontpaneltosupporta7.1-channelaudio
output.
8. USB 3.0 ports.These9-pinUniversalSerialBus(USB)portsareforUSB3.0devices.
• USB3.0devicescanonlybeusedfordatastorage.
• WestronglyrecommendthatyouconnectUSB3.0devicestoUSB3.0portsforfaster
andbetterperformancefromyourUSB3.0devices.
• DuetothedesignoftheIntel®100serieschipset,allUSBdevicesconnectedtothe
USB2.0andUSB3.0portsarecontrolledbythexHCIcontroller.SomelegacyUSB
devicesmustupdatetheirrmwareforbettercompatibility.
9. DVI-I port.ThisportisforanyDVI-IcompatibledeviceandareHDCPcompliant,
allowingplaybackofHDDVD,Blu-Rayandotherprotectedcontent.
10. PS/2 keyboard port (purple).ThisportisforaPS/2keyboard.

1-8 Chapter 1: Product introduction
Central Processing Unit (CPU)
ThismotherboardcomeswithasurfacemountLGA1151socket
designedfor6thGenerationIntel®Core™i7/i5/i3,Pentium®,and
Celeron®processors.
• EnsurethatyouinstallthecorrectCPUdesignedfortheLGA1151socketonly.DO
NOTinstallaCPUdesignedforLGA1150,LGA1155andLGA1156socketsonthe
LGA1151socket.
• 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.
• 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
LGA1151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.
UnplugallpowercablesbeforeinstallingtheCPU.
Installing the CPU
1
A
B
4
ApplytheThermalInterfaceMaterialtotheCPUheatsinkandCPUbeforeyouinstallthe
heatsinkandfanifnecessary.
2
3
A
B
C
D
5
4
4
5

ASUS Q170M-CM-B 1-9
System memory
Overview
ThismotherboardcomeswithfourDoubleDataRate4(DDR4)DualInlineMemoryModule
(DIMM)sockets.ADDR4moduleisnotcheddifferentlyfromaDDR,DDR2,orDDR3module.
DONOTinstallaDDR,DDR2,orDDR3memorymoduletotheDDR4slot.
• YoumayinstallvaryingmemorysizesinChannelAandChannelB.Thesystem
mapsthetotalsizeofthelower-sizedchannelforthedual-channelconguration.Any
excessmemoryfromthehigher-sizedchannelisthenmappedforsingle-channel
operation.
• AlwaysinstalltheDIMMSwiththesameCASLatency.Foranoptimumcompatibility,
werecommendthatyouinstallmemorymodulesofthesameversionordatacode
(D/C)fromthesamevendor.Checkwiththevendortogetthecorrectmemory
modules.
• AccordingtoIntel®CPUspec,DIMMvoltagebelow1.35Visrecommendedtoprotect
theCPU.
• 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:
- Useamaximumof3GBsystemmemoryifyouareusinga32-bitWindows®OS.
 - Installa64-bitWindows®OSifyouwanttoinstall4GBormoreonthe
motherboard.
 - Formoredetails,refertotheMicrosoft®supportsiteathttp://support.microsoft.
com/kb/929605/en-us.
VisittheASUSwebsiteatwww.asus.comforthelatestQVL.
Installing a DIMM
1 2
To remove a DIMM
B
A
B
A
A
Channel Sockets
ChannelA DIMM_A1andDIMM_A2
ChannelB DIMM_B1andDIMM_B2
DIMM_A1
DIMM_A2
DIMM_B1
DIMM_B2

BIOS information
2
• ScantheQRcodetoviewtheBIOSupdateguide.
• BeforeusingtheASUSCrashFreeBIOS3utility,renamethe
BIOSleintheremovabledeviceintoQ170MCMB.CAP.
BIOS setup program
UsetheBIOSSetupprogramtoupdatetheBIOSorcongureitsparameters.TheBIOS
screensincludenavigationkeysandbriefonlinehelptoguideyouinusingtheBIOSSetup
program.
Entering BIOS Setup at startup
To enter BIOS Setup at startup:
Press<Delete>or<F2>duringthePower-OnSelfTest(POST).Ifyoudonotpress<Delete>
or<F2>,POSTcontinueswithitsroutines.
Entering BIOS Setup after POST
To enter BIOS Setup after POST:
Press<Ctrl>+<Alt>+<Del>simultaneously.
Presstheresetbuttononthesystemchassis.
Pressthepowerbuttontoturnthesystemoffthenbackon.Dothisoptiononlyifyoufailedto
enterBIOSSetupusingthersttwooptions.
Usingthepowerbutton,resetbutton,orthe<Ctrl>+<Alt>+<Del>keystoforceresetfroma
runningoperatingsystemcancausedamagetoyourdataorsystem.Werecommendyou
alwaysshutdownthesystemproperlyfromtheoperatingsystem.
• TheBIOSsetupscreensshowninthissectionareforreferencepurposesonly,and
maynotexactlymatchwhatyouseeonyourscreen.
• VisittheASUSwebsiteatwww.asus.comtodownloadthelatestBIOSleforthis
motherboard.
• IfthesystembecomesunstableafterchanginganyBIOSsetting,loadthedefault
settingstoensuresystemcompatibilityandstability.SelecttheLoad Optimized
DefaultsitemundertheExitmenuorpresshotkeyF5.
• IfthesystemfailstobootafterchanginganyBIOSsetting,trytocleartheCMOSand
resetthemotherboardtothedefaultvalue.SeesectionMotherboard overviewfor
informationonhowtoerasetheRTCRAM.
BIOS menu screen
TheBIOSsetupprogramcanbeusedundertwomodes:EZ ModeandAdvanced Mode.
Press<F7>tochangebetweenthetwomodes.
ASUS Q170M-CM-B 2-1

EZ Mode
Bydefault,theEZModescreenappearswhenyouentertheBIOSsetupprogram.TheEZ
Modeprovidesyouanoverviewofthebasicsysteminformation,andallowsyoutoselectthe
displaylanguage,systemperformancemode,fanproleandbootdevicepriority.Toaccess
theAdvancedMode,clickAdvanced Mode(F7)orpress<F7>.
ThedefaultscreenforenteringtheBIOSsetupprogramcanbechanged.Refertothe
Setup Modeiteminsection2.8 Boot menufordetails.
Thebootdeviceoptionsvarydependingonthedevicesyouinstalledtothesystem.
Saves the changes
and resets the
system
Selects the display
language of the BIOS
setup program
Displays the CPU/motherboard
temperature, CPU voltage output,
CPU/chassis fan speed, and SATA
information
Displays the system properties of
the selected mode. Click <Enter> to
switch EZ System Tuning modes
Displays the
Advanced mode
menus
Selects the boot
device priority
Loads optimized
default settings
Shows the
bootable
devices
Displays the CPU Fan’s speed.
Click the button to manually
tune the fans
Search on FAQs
Enables or disables the Intel
Rapid Storage Technology
2-2 Chapter 2: Getting started

Configuration fields
Menu bar
General helpSub-menu item
Menu items Scroll bar
Last modified
settings
Language Hot Keys
MyFavorite Q-Fan control
Goes back to
EZ Mode
Displays the CPU temperature, CPU
and memory voltage output
Quick Note
Advanced Mode
TheAdvancedModeprovidesadvancedoptionsforexperiencedend-userstocongurethe
BIOSsettings.ThegurebelowshowsanexampleoftheAdvanced Mode.Refertothe
followingsectionsforthedetailedcongurations.
ToaccesstheEZMode,clickEzMode(F7)orpress<F7>.
Popup window Search on
FAQs
EZ Tuning
Wizard
ASUS Q170M-CM-B 2-3