Asus PRIME H370-A User manual

Motherboard
PRIME H370-A

ii
E13858
First Edition
January 2018
Copyright © 2018 ASUSTeK COMPUTER INC. All Rights Reserved.
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iii
Contents
Safety information...................................................................................................... iv
About this guide......................................................................................................... iv
Package contents....................................................................................................... vi
PRIME H370-A specications summary .................................................................. vi
Chapter 1: Product introduction
1.1 Before you proceed...................................................................................... 1-1
1.2 Motherboard overview ................................................................................. 1-1
1.3 Central Processing Unit (CPU).................................................................. 1-10
1.4 System memory.......................................................................................... 1-11
Chapter 2: BIOS information
2.1 Managing and updating your BIOS............................................................. 2-1
2.2 BIOS setup program..................................................................................... 2-5
2.3 Exit menu .................................................................................................... 2-10
Appendix
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.

v
Where to nd 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
(continued on the next page)
PRIME H370-A specications summary
CPU LGA1151 socket for 8th Generation Intel®Core™ i7/ i5/ i3, Pentium®, and
Celeron®processors
Supports 14nm CPU
Supports Intel®Turbo Boost Technology 2.0*
*Intel®Turbo Boost Technology 2.0 support depends on the CPU types.
** Refer to www.asus.com for Intel®CPU support list.
Chipset Intel®H370 Chipset
Memory 4 x DIMM, maximum 64 GB, DDR4 2666/ 2400/ 2133MHz, non-ECC, un-
buffered memory
Dual-channel memory architecture
Supports Intel® Extreme Memory Prole (XMP)
* The maximum memory frequency supported varies by processor.
** DDR4 2666MHz and higher memory modules will run at max. 2666MHz on
Intel®8th Generation 6-core or higher processors; DDR4 2400MHz and higher
memory modules will run at max. 2400MHz on Intel®8th Generation 4-core
processors.
*** Refer to www.asus.com for the latest Memory QVL (Qualied Vendors List).
Expansion slots 1 x PCI Express 3.0/2.0 x16 slot (at x 16 mode)
1 x PCI Express 3.0/2.0 x16 slot (max. at x4 mode, compatible with PCIe
x1, x2 and x4 devices)
4 x PCI Express 3.0/2.0 x1 slots
Graphics Integrated graphics processor - Intel®HD Graphics support
Multi-VGA output support: HDMI, DVI-D, and D-sub ports
- Supports HDMI 1.4b with max. resolution 4096 x 2160@24Hz / 2560 x
1600@60Hz
- Supports DVI-D with max. resolution of 1920 x 1200@60Hz
- Supports D-sub with max. resolution 1920 x 1200@60Hz
Supports Intel®InTru™ 3D/Quick Sync Video/Clear Video HD Technology/
Insider™
Supports up to 3 displays simultaneously
Maximum shared memory of 1024MB(for iGPU exclusively)
Multi-GPU support Supports AMD®CrossFireX™ Technology
Package contents
Check your motherboard package for the following items.
Motherboard ASUS PRIME H370-A motherboard
Cables 2 x Serial ATA 6.0 Gb/s cables
Accessories 1 x I/O Shield
2 x M.2 Screws
Application DVD Support DVD
Documentation User Guide
If any of the above items is damaged or missing, contact your retailer.

vii
PRIME H370-A specications summary
(continued on the next page)
Storage Intel®H370 Chipset with RAID 0, 1, 5, 10 and Intel Rapid Storage
Technology support
- 1 x M.2 Socket 3 with M Key, type 2242/2260/2280 storage devices
support (SATA mode & x2 PCIe mode)*
- 1 x M.2 Socket 3 with M Key, type 2242/2260/2280 storage devices
support (x4 PCIe mode)
- 6 x SATA 6.0 Gb/s ports (gray)
- Intel®Optane™ Memory Ready
* When a device in SATA mode is installed on the M.2_1 socket, SATA_2 port
cannot be used.
LAN Realtek®8111H Gigabit LAN support LANGuard
Audio Realtek® ALC887 8-channel* high denition audio CODEC
- Audio Shielding: Ensures precision analog/digital separation and greatly
reduces multi-lateral interference
- Dedicated audio PCB layers: Separate layers for left and right channels to
guard the quality of the sensitive audio signals
- Premium Japanese audio capacitors: Provide warm, natural and
immersive sound with exceptional clarity and delity.
- Supports jack-detection and front panel jack-retasking
* Use a chassis with HD audio module in the front panel to support an 8-channel
audio output.
USB Intel®H370 Chipset:
- 2 x USB 3.1 Gen 2 (up to 10Gbps) ports (2 ports at the back panel, teal
blue, Type A)
- 6 x USB 3.1 Gen 1 (up to 5Gbps) ports (4 ports at mid-board; 2 ports at
the back panel, blue, Type A)
- 6 x USB 2.0/1.1 ports (4 ports at mid-board; 2 ports at the back panel)
ASUS unique
features
ASUS 5X PROTECTION III
- ASUS SafeSlot Core: Fortied PCIe Slot prevents damage
- ASUS LANGuard: Protects against LAN surges, lightning strikes and
static-electricity discharges!
- ASUS Overvoltage Protection: World-class circuit-protecting power
design
- ASUS Stainless-Steel Back I/O: 3X corrosion-resistance for greater
durability!
- ASUS DIGI+ VRM: 6 Phase digital power design
Superb Performance
ASUS OptiMem
- Improved DDR4 stability
M.2 onboard
- The latest transfer technologies with up to 32Gb/s data transfer speeds
ASUS Fan Xpert 2+
- Ultimate cooling and quietness
ASUS EPU
- EPU
UEFI BIOS
- Most advanced options with fast response time

viii
ASUS unique
features
Gaming Scenario
Audio Features
- Audio that roars on the battleeld
ASUS Exclusive Features
- ASUS Ai Charger
- ASUS AI Suite 3
- ASUS File Transfer
- ASUS PC Cleaner
EZ DIY
UEFI BIOS EZ Mode
- Featuring friendly graphics user interface
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 3
Q-Design
- ASUS Q-DIMM
- ASUS Q-Slot
ASUS quiet
thermal solution Quiet Thermal Design
- ASUS Fan Xpert 2+
- Stylish Fanless Design: PCH Heat-sink & MOS Heat-sink
Back panel I/O
ports
1 x PS/2 keyboard/mouse combo port
1 x HDMI port
1 x DVI-D port
1 x D-sub port
1 x LAN (RJ-45) port
2 x USB 3.1 Gen 2 (up to 10Gbps) Type A ports (teal blue)
2 x USB 3.1 Gen 1 (up to 5Gbps) Type A ports (blue)
2 x USB 2.0/1.1 ports
3-Jack 8-Channel Audio I/O ports
PRIME H370-A specications summary
(continued on the next page)

ix
Specications are subject to change without notice.
Internal I/O
connectors
2 x USB 3.1 Gen 1 (up to 5Gbps) connector supports additional 4 USB ports
(19-pin)
2 x USB 2.0 connectors support additional 4 USB ports
6 x SATA 6.0 Gb/s connectors (gray)
2 x M.2 Socket 3 (for M Key)
1 x 4-pin CPU Fan connector (PWM mode)
3 x 4-pin Chassis Fan connectors for 3-pin (DC mode) and 4-pin (PWM
mode) coolers control
1 x Front panel audio connector (AAFP)
1 x Mono Out header
1 x System panel connector*
1 x S/PDIF out connector
1 x 24-pin EATX power connector
1 x 8-pin EATX 12V power connector
1 x TPM connector
1 x COM connector
1 x Clear CMOS jumper
* Chassis intrusion header is built in the system panel connector.
BIOS features 128 Mb Flash ROM, UEFI AMI BIOS, PnP, SM BIOS 3.1, ACPI 6.1,
Multi-language BIOS, ASUS EZ Flash 3, CrashFree BIOS 3, F11 EZ
Tuning Wizard, F6 Qfan Control, F3 My Favorites, Last Modied log, F12
PrintScreen, and ASUS DRAM SPD (Serial Presence Detect) memory
information
Manageability WOL by PME, PXE
Support DVD Drivers
ASUS utilities
EZ Update
Anti-virus software (OEM version)
Operating system
support Windows®10 (64-bit)
Form factor ATX form factor: 12.0 in. x 8.7 in. (30.5 cm x 22.1cm)
PRIME H370-A specications summary

ASUS PRIME H370-A
1-1
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.
• 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 motherboard components.
1.2 Motherboard overview
Place this
side towards
the rear of the
chassis
PRIME H370-A
PCIEX16_1
PCIEX16_2
PCIEX1_1
PCIEX1_2
ALC
887-VD2
M.2_1(SOCKET3)
M.2_1(SOCKET3)
M.2_2(SOCKET3)
M.2_2(SOCKET3)
RTL
8111H
USB1112 USB1314
AAFP
SPDIF_OUT CLRTC
EATXPWR
BATTERY
Super
I/O
ASM
1083
2280 2260 2242
2280 2260 2242
KBMS_USB910
22.1cm(8.7in)
DDR4 DIMM_B1 (64bit, 288-pin module) DDR4 DIMM_B2* (64bit, 288-pin module) DDR4 DIMM_A1 (64bit, 288-pin module) DDR4 DIMM_A2* (64bit, 288-pin module)
SATA6G_6 SATA6G_5
LAN1_U31G1_78
U31G1_56
U31G2_34
HDMI
CHA_FAN2
CPU_FAN
CHA_FAN3
CHA_FAN1
30.5cm(12.0in)
LGA1151
DIGI
+VRM
COM
MONO_OUT
EATX12V
U31G1_12
Intel®
H370
PANEL
AUDIO
SATA6G_2 SATA6G_1
SATA6G_4 SATA6G_3
LANGuard
PCIE SATA IRST
X4 X V
PCIE SATA IRST
X2 V V
TPM
128Mb
BIOS
DVI
VGA
PCIEX1_3
PCIEX1_4
21 3 42
9 851011121415 13
1
5
2
6
6
7
7
17
16
16
17
16

1-2
Chapter 1: Product introduction
1.2.1 Layout contents
Connectors/Jumpers/Slots/LED Page
1. ATXpowerconnectors(24-pinEATXPWR,8-pinEATX12V) 1-2
2. CPUandchassisfanconnectors(4-pinCPU_FAN,4-pinCHA_FAN1~3) 1-3
3. Intel®LGA1151CPUsocket 1-3
4. DDR4DIMMslots 1-3
5. USB3.1Gen1(upto5Gbps)connectors(20-1pinU31G1_12,U31G1_56) 1-3
6. M.2Socket3 1-4
7. Intel®H370SerialATA6.0Gb/sconnector(7-pinSATA6G_1~6) 1-4
8. ClearRTCRAM(2-pinCLRTC) 1-4
9. Systempanelconnector(20-3pinPANEL) 1-5
10. USB2.0connectors(10-1pinUSB1112,USB1314) 1-5
11. TPMconnector(14-1pinTPM) 1-6
12. Serialportconnectors(10-1pinCOM) 1-6
13. Monooutheader(2-pinMONO_OUT) 1-6
14. Frontpanelaudioconnector(10-1pinAAFP) 1-6
15. Digitalaudioconnector(4-1pinSPDIF_OUT) 1-6
16. PCIExpress3.0/2.0x1slots 1-7
17. PCIExpress3.0/2.0x16slots 1-7
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.
EATX12V
+12V DC
+12V DC
+12V DC
+12V DC
GND
GND
GND
GND
EATXPWR
PIN 1
PIN 1
GND
+5 Volts
+5 Volts
+5 Volts
-5 Volts
GND
GND
GND
PSON#
GND
-12 Volts
+3 Volts
+3 Volts
+12 Volts
+12 Volts
+5V Standby
Power OK
GND
+5 Volts
GND
+5 Volts
GND
+3 Volts
+3 Volts
• 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.ThisPSUtypehas24-pinand
8-pinpowerplugs.
• DONOTforgettoconnectthe8-pinEATX+12Vpowerplug.Otherwise,
the system will not boot up.
• WerecommendthatyouuseaPSUwithhigherpoweroutputwhen
conguringasystemwithmorepower-consumingdevicesorwhenyou
intendtoinstalladditionaldevices.Thesystemmaybecomeunstableor
may not boot up if the power is inadequate.
• 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.cn/PowerSupply.aspx?SLanguage=en for details.

ASUS PRIME H370-A
1-3
CPU and chassis fan connectors (4-pin
CPU_FAN, 4-pin CHA_FAN1~3)
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.
CHA FAN PWM
CHA FAN IN
CHA FAN PWR
GND
CPU_FAN CHA_FAN3
CPU FAN PWM
CPU FAN IN
CPU FAN PWR
GND
CHA_FAN1
CHA FAN PWM
CHA FAN IN
CHA FAN PWR
GND
CHA_FAN2
GND CHA FAN PWR CHA FAN IN CHA FAN PWM
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8th Generation Intel®Core™i7/i5/i3,Pentium®,andCeleron®
processors.
Formoredetails,refertoCentral Processing Unit (CPU).
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.
USB 3.1 Gen 1 (up to 5Gbps) connectors (20-1 pin
U31G1_12, U31G1_56)
ConnectaUSB3.1Gen1moduletoanyofthese
connectorsforadditionalUSB3.1Gen1frontorrear
panelports.TheseconnectorscomplywithUSB3.1
Gen1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.
U31G1_56
USB3+5V
IntA_P1_SSRX-
IntA_P1_SSRX+
GND
IntA_P1_SSTX-
IntA_P1_SSTX+
GND
IntA_P1_D-
IntA_P1_D+
GND
PIN 1
USB3+5V
IntA_P2_SSRX-
IntA_P2_SSRX+
GND
IntA_P2_SSTX-
IntA_P2_SSTX+
GND
IntA_P2_D-
IntA_P2_D+
U31G1_12
USB3+5V IntA_P1_SSRX- IntA_P1_SSRX+ GND IntA_P1_SSTX- IntA_P1_SSTX+ GND IntA_P1_D- IntA_P1_D+ GND
PIN 1
USB3+5V
IntA_P2_SSRX-
IntA_P2_SSRX+
GND
IntA_P2_SSTX-
IntA_P2_SSTX+
GND
IntA_P2_D-
IntA_P2_D+

1-4
Chapter 1: Product introduction
M.2 socket 3
These sockets allow you to install M.2(NGFF)SSDmodules.
M.2_2(SOCKET3)
2280 2260 2242
M.2_1(SOCKET3)
2280 2260 2242
PRIME Z270-P M.2(SOCKET3)s
PRIME Z270-P
• BothsocketssupportMKeyandtype2242/2260/2280storagedevices.
• BothsocketscansupportIntel®Optane™Memory.
• TheM.2_1socketsupportsdatatransferspeedupto16Gb/s.
• TheM.2_2socketsupportsdatatransferspeedupto32Gb/s.
• OnlytheM.2_1socketcansupportSATAmodestoragedevices.Whenadevicein
SATAmodeisinstalledontheM.2_1socket,SATA_2isdisabled.
Intel®H370 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.
GND
RSATA_TXP
RSATA_TXN
GND
RSATA_RXN
RSATA_RXP
GND
SATA6G
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.

ASUS PRIME H370-A
1-5
System panel connector (20-3 pin F_PANEL)
Thisconnectorsupportsseveralchassis-mounted
functions.
• SystempowerLED(4-pin+PWR_LED-)
This4-pinconnectorisforthesystempowerLED.
ConnectthechassispowerLEDcabletothis
connector.ThesystempowerLEDlightsupwhen
youturnonthesystempower,andblinkswhen
the system is in sleep mode.
PLED+ PLED- PWR Ground +5V Ground Ground Speaker CASEOPEN
HDD_LED+
HDD_LED-
GND
Reset
+5V
PLED+
PLED-
GND
PIN 1
+PWR_LED-
+PWR_LED-
SPEAKER
PANEL
+HDD_LED-
PWR_SW
RESET
* Requires an ATX power supply
CHASSIS
• HarddiskdriveactivityLED(2-pin+HDD_LED-)
This2-pinconnectorisfortheHDDActivityLED.ConnecttheHDDActivity
LEDcabletothisconnector.TheHDDLEDlightsuporasheswhendatais
readfromorwrittentotheHDD.
• Systemwarningspeaker(4-pinSPEAKER)
This4-pinconnectorisforthechassis-mountedsystemwarningspeaker.
The speaker allows you to hear system beeps and warnings.
• ATXpowerbutton/soft-offbutton(2-pinPWR_SW)
Thisconnectorisforthesystempowerbutton.Pressingthepowerbutton
turns the system on or puts the system in sleep or soft-off mode depending
ontheoperatingsystemsettings.Pressingthepowerswitchformorethan
foursecondswhilethesystemisONturnsthesystemOFF.
• Resetbutton(2-pinRESET)
This 2-pin connector is for the chassis-mounted reset button for system
reboot without turning off the system power.
• Chassisintrusionheader(2-pinCHASSIS)
This connector is for a chassis-mounted intrusion detection sensor or switch.
Connect one end of the chassis intrusion sensor or switch cable to this
connector.Thechassisintrusionsensororswitchsendsahigh-levelsignalto
thisconnectorwhenachassiscomponentisremovedorreplaced.Thesignal
isthengeneratedasachassisintrusionevent.
USB 2.0 connectors (10-1 pin USB1112, USB1314)
ConnectaUSBmodulecabletoanyofthese
connectors,theninstallthemoduletoaslotopeningat
thebackofthesystemchassis.TheseUSBconnectors
complywithUSB2.0specicationsandsupportsupto
480Mbpsconnectionspeed.
USB+5V USB_P11- USB_P11+ GND NC
USB+5V
USB_P12-
USB_P12+
GND
USB1112
PIN 1
USB+5V USB_P13- USB_P13+ GND NC
USB+5V
USB_P14-
USB_P14+
GND
USB1314
PIN 1

1-6
Chapter 1: Product introduction
TPM connector (14-1 pin TPM)
ThisconnectorsupportsaTrustedPlatformModule
(TPM)system,whichcansecurelystorekeys,digital
certicates,passwords,anddata.ATPMsystem
alsohelpsenhancenetworksecurity,protectsdigital
identities,andensuresplatformintegrity.
TPM
PIN 1
+3VSB
S_PCIRST#_TBD
GND
C_PCICLK_TPM
+3V +3V
TPM_PD# F_SERIRQ F_FRAME# F_LAD3 F_LAD2 F_LAD1 F_LAD0
Serial port connector (10-1 pin COM)
Thisconnectorisforaserial(COM)port.Connectthe
serialportmodulecabletothisconnector,theninstall
the module to a slot opening at the back of the system
chassis.
PIN 1
COM
DCD
TXD
GND
RTS
RI
RXD
DTR
DSR
CTS
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).
R_OUT-
R_OUT+
PIN 1
MONO_OUT
Front panel audio connector (10-1 pin AAFP)
This connector is for a chassis-mounted front panel
audioI/OmodulethatsupportsHDaudiostandard.
ConnectoneendofthefrontpanelaudioI/Omodule
cable to this connector.
AAFP
AGND NC SENSE1_RETUR SENSE2_RETUR
PORT1 L
PORT1 R PORT2 R
SENSE_SEND
PORT2 L
HD-audio-compliant
pin definition
• 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].
Bydefault,thisconnectorissetto[HDAudio].
Digital audio connector (4-1 pin SPDIF_OUT)
ThisconnectorisforanadditionalSony/PhilipsDigital
Interface(S/PDIF)port.ConnecttheS/PDIFOutmodule
cabletothisconnector,theninstallthemoduletoaslot
opening at the back of the system chassis.
SPDIF_OUT
+5V SPDIFOUT GND

ASUS PRIME H370-A
1-7
• InsingleVGAcardmode,usethePCIe3.0x16_1slot(gray)foraPCIExpressx16
graphics card to get better performance.
• WerecommendthatyouprovidesufcientpowerwhenrunningCrossFireX™mode.
• ConnectachassisfantothemotherboardconnectorlabeledCHA_FAN1/2/3when
usingmultiplegraphicscardsforbetterthermalenvironment.
VGAconguration
PCI Express operating mode
PCIe 3.0 x16_1 (gray) PCIe 3.0 x16_2
Single VGA/PCIe card x16(Recommendedforsingle
VGAcard) N/A
Dual VGA/PCIe cards x16 x4
PCI Express 3.0/2.0 x1 slots
ThismotherboardhastwoPCIExpress3.0/2.0x1slotsthatsupportPCIExpress
x1networkcards,SCSIcards,andothercardsthatcomplywiththePCIExpress
specications.
PCI Express 3.0/2.0 x16 slots
ThismotherboardsupportstwoPCIExpress3.0/2.0x16graphiccardsthatcomply
withthePCIExpressspecications.

1-8
Chapter 1: Product introduction
1.2.2 Rear panel connectors
4. Line In port (light blue).Thisportconnectsthetape,CD,DVDplayer,orotheraudio
sources.
5. Line Out port (lime).Thisportconnectsaheadphoneoraspeaker.In4.1-channel,
5.1-channel,and7.1-channelcongurations,thefunctionofthisportbecomesFront
SpeakerOut.
6. Microphone port (pink). This port connects a microphone.
Refertotheaudiocongurationtableonthenextpageforthefunctionoftheaudioportsin
2.1,4.1,5.1,or7.1-channelconguration.
LAN port
Speed
LED
Activity Link
LED
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
3 4
6
5
78910
1
11
2
1. PS/2 keyboard/mouse combo port.ThisportisforaPS/2mouseorkeyboard.
2. Video Graphics Adapter (VGA) port. This15-pinportisforaVGAmonitororother
VGA-compatibledevices.
3. LAN (RJ-45) port.ThisportallowsGigabitconnectiontoaLocalAreaNetwork(LAN)
throughanetworkhub.RefertothetablebelowfortheLANportLEDindications.
LAN port LED indications

ASUS PRIME H370-A
1-9
Audio2.1,4.1,5.1or7.1-channelconguration
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congure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.
7. USB 3.1 Gen 1 (up to 5Gbps) ports.These9-pinUniversalSerialBus(USB)ports
connecttoUSB3.1Gen1devices.
8. USB 3.1 Gen 2 (up to 10Gbps) ports (teal blue, Type A).These9-pinUniversal
SerialBus3.1(USB3.1)portsareforUSB3.1Gen2devices.
• USB3.1Gen2/Gen1devicescanonlybeusedfordatastorage.
• DuetothedesignoftheIntel®300serieschipset,allUSBdevicesconnectedtothe
USB2.0andUSB3.1Gen2/Gen1portsarecontrolledbythexHCIcontroller.Some
legacyUSBdevicesmustupdatetheirrmwareforbettercompatibility.
• WestronglyrecommendthatyouconnectUSB3.1Gen2devicestoUSB3.1Gen2
portsforfasterandbetterperformancefromyourUSB3.1Gen2devices.
9. 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.
10. DVI-D port.ThisportisforanyDVI-Dcompatibledevice.
DVI-DcannotbeconvertedtooutputfromRGBSignaltoCRTandisnotcompatiblewith
DVI-I.
11. USB 2.0 portsThese4-pinUniversalSerialBus(USB)portsareforUSB2.0/1.1
devices.

1-10
Chapter 1: Product introduction
1.3 Central Processing Unit (CPU)
ThismotherboardcomeswithasurfacemountLGA1151socket
designedforthe8thGenerationIntel®Core™i7/Core™i5/Core™i3,
Pentium®and Celeron®processors.
UnplugallpowercablesbeforeinstallingtheCPU.
• 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.
Installing the CPU
1
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
A
B
C
D
5
4
4
5

ASUS PRIME H370-A
1-11
1.4 System memory
ThismotherboardcomeswithfourDoubleDataRate4(DDR4)DualInlineMemoryModule
(DIMM)sockets.ThegureillustratesthelocationoftheDDR4DIMMsockets:
Channel Sockets
ChannelA DIMM_A1&DIMM_A2*
ChannelB DIMM_B1&DIMM_B2*
• 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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.
• DDR42666MHzandhighermemorymoduleswillrunatmax.2666MHzonIntel®8th
Generation6-coreorhigherprocessors;DDR42400MHzandhighermemorymodules
willrunatmax.2400MHzonIntel®8thGeneration4-coreprocessors.
• Memorymoduleswithmemoryfrequencyhigherthan2133MHzanditscorresponding
timingortheloadedX.M.P.ProleisnottheJEDECmemorystandard.Thestability
andcompatibilityofthesememorymodulesdependontheCPU’scapabilitiesand
otherinstalleddevices.
• 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.
• Forsystemstability,useamoreefcientmemorycoolingsystemtosupportafull
memoryload(4DIMMs).
• Refertowww.asus.comforthelatestMemoryQVL(QualiedVendorsList)
DIMM_B1
DIMM_B2*
DIMM_A1
DIMM_A2*
Recommendedmemorycongurations
DIMM_A2*
DIMM_B1
DIMM_B2*
DIMM_A2*
DIMM_B2*
DIMM_A1
DIMM_A2*