ASUSTeK COMPUTER H81I-CM-AA User manual

Industrial Motherboard
H81I-CM-AA

ii
E16521
First Edition
April 2020
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iii
Contents
Chapter 1 Product overview
1.1 Package contents......................................................................... 1-1
1.2 Features ........................................................................................ 1-1
1.3 Specifications............................................................................... 1-2
Chapter 2 Motherboard information
2.1 Before you proceed ..................................................................... 2-1
2.2 Motherboard layout...................................................................... 2-2
2.3 Central Processing Unit (CPU) ................................................... 2-4
2.3.1 Installing the CPU ........................................................... 2-5
2.3.2 CPU heatsink and fan assembly installation................... 2-7
2.4 System memory ........................................................................... 2-9
2.5 Jumpers ...................................................................................... 2-10
2.6 Connectors ................................................................................. 2-12
2.6.1 Rear panel connectors.................................................. 2-12
2.6.2 Internal connectors ....................................................... 2-14
Chapter 3 BIOS setup
3.1 BIOS setup program .................................................................... 3-1
3.2 My Favorites ................................................................................. 3-3
3.3 Main menu .................................................................................... 3-4
3.3.1 System Language [English] ............................................ 3-4
3.3.2 System Date [Day xx/xx/xxxx]......................................... 3-4
3.3.3 System Time [xx:xx:xx] ................................................... 3-4
3.3.4 Security ........................................................................... 3-4
3.4 Ai Tweaker menu.......................................................................... 3-7
3.4.1 CPU Core Ratio [Auto].................................................... 3-8
3.4.2 Min. CPU Cache Ratio [Auto] ......................................... 3-8
3.4.3 Max. CPU Cache Ratio [Auto] ........................................ 3-8
3.4.4 DRAM Frequency [Auto] ................................................. 3-8
3.4.5 Max. CPU Graphics Ratio [Auto] .................................... 3-9
3.4.6 DRAM Timing Control ..................................................... 3-9
3.4.7 CPU Power Management ............................................. 3-11
3.5 Advanced menu ......................................................................... 3-14
3.5.1 CPU Conguration ........................................................ 3-14
3.5.2 PCH Conguration ........................................................ 3-16

iv
3.5.3 SATA Conguration ...................................................... 3-16
3.5.4 System Agent Conguration ......................................... 3-17
3.5.5 USB Conguration ........................................................ 3-19
3.5.6 Platform Misc Conguration.......................................... 3-19
3.5.7 Onboard Devices Conguration.................................... 3-20
3.5.8 APM .............................................................................. 3-21
3.5.9 Network Stack............................................................... 3-21
3.6 Monitor menu ............................................................................. 3-22
3.6.1 CPU/MB/ Temperature ................................................ 3-22
3.6.2 CPU / Chassis Fan Speed ............................................ 3-22
3.6.3 CPU Input Voltage ....................................................... 3-22
3.6.4 CPU Q-Fan Control [Enabled] ...................................... 3-22
3.6.5 Chassis Q-Fan Control [Enabled] ................................. 3-23
3.7 Boot menu .................................................................................. 3-24
3.7.1 Fast Boot [Enabled] ...................................................... 3-24
3.7.2 Boot Logo Display [Enabled]......................................... 3-24
3.7.3 Bootup NumLock State [On] ......................................... 3-25
3.7.4 Wait for ‘F1’ If Error [Enabled]....................................... 3-25
3.7.5 Option ROM Messages [Force BIOS]........................... 3-25
3.7.6 Interrupt 19 Capture [Disabled]..................................... 3-25
3.7.7 CSM (Compatibility Support Module)............................ 3-25
3.7.8 Secure Boot .................................................................. 3-26
3.7.9 Boot Option Priorities .................................................... 3-28
3.7.10 Boot Override................................................................ 3-28
3.8 Tool menu................................................................................... 3-29
3.9 Exit menu.................................................................................... 3-30
Appendix
Notices.......................................................................................................A-1
ASUS contact information .......................................................................A-5

1-1
Chapter 1: General information
1.1 Package contents
Check your industrial motherboard package for the following items.
1 x ASUS H81I-CM-AA Motherboard
1 x Serial ATA 6.0 Gb/s cables
2 x M.2 screw packages
1 x ASUS I/O Shield
NOTE: If any of the above items is damaged or missing, contact your
distributor or sales representative immediately.
1.2 Features
• Intel®socket 1150 for 4th Gen Intel®Core™ i7/ i5/ i3, Pentium®, and Celeron®
processors
• Two DDR3L 1600/1333/1066 MHz Non-ECC SO-DIMMs up to 16GB
• 2 x SATA 6.0 Gb/s, 6 x USB 3.2 Gen 1, 8 x USB 2.0, 12 x COM headers
• 1 x PCIe 2.0 x1 slot, 1 full mini-PCIe, 1 x full/half mSATA, 1 x M.2 Socket 1
with E key, 1 x SIM Card slot
• Multi-display: 2 x D-Sub, D-Sub + D-Sub
Chapter 1
Product overview

H81I-CM-AA
1-2
1.3 Specifications
(continued on the next page)
CPU
Intel®socket 1150 for 4th Gen Intel®Core™ i7/ i5/ i3, Pentium®,
and Celeron®processors
Supports Intel® 22nm CPU
Chipset Intel®H81 Chipset
Memory 2 x SO-DIMM, max.16GB, DDR3L 1600/1333/1066 MHz SDRAM
Graphics
Integrated graphics processor - Intel®HD Graphics support
- Supports D-Sub output with a maximum resolution of 1920 x
1200 @ 60Hz
Expansion slots
1 x PCI Express 2.0 x1 slot
1 x full mini-PCIe
1 x full/half mSATA
1 x M.2 Socket 1 with E key, type 2230 for WIFI/BT device
Storage 2 x SATA Gen3.0 up to 6.0 Gb/s ports
1 x mSATA 3Gb/s
LAN Dual Intel®Lan: 2 x Realtek®8111H
Audio Realtek ALC887-VD2 High Denition Audio
Rear panel I/O
ports
2 x D-Sub ports
6 x USB 3.2 Gen 1 ports
8 x USB 2.0 ports
2 x LAN (RJ45) ports
1 x P/S2 keyboard/mouse combo port
3 x Audio jacks
Front panel I/O
ports
12 x Serial Port headers (12 x RS232)
1 x CPU Fan header
1 x Chassis Fan header
1 x Chassis intrusion header
1 x Front panel audio header (AAFP)
1 x System panel header
1 x Clear CMOS jumper
1 x Speaker header
1 x LPC Debug header
1 x Speaker out header
1 x AT/ATX mode selection header
1 x 24-pin EATX power connector
1 x 4-pin ATX 12V power connector

1-3
Chapter 1: General information
Manageability WfM 2.0, DMI 2.0, WOL by PME
Power
requirement AT/ATX mode
Operation
Temperature 0~50°C
Non-Operation
Temperature -40~85°C
Relative Humidity 5%~95%
OS support Windows®7
Ubuntu
Form Factor Mini-ITX Form Factor, 6.7”x 6.7” (17.0cm x 17.0cm)
NOTE: Specications are subject to change without notice.

2-1
Chapter 2: Motherboard information
Chapter 2
Motherboard information
2.1 Before you proceed
Take note of the following precautions before you install motherboard components
or change any motherboard settings.
CAUTION!
• 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, always remove the AC power
by unplugging the power cord from the power outlet. Failure to do so may
cause severe damage to the motherboard, peripherals, or components.

H81I-CM-AA
2-2
17.0cm(6.7in)
17.0cm(6.7in)
EATXPWR
DDR3L SO-DIMM_A1*
DDR3L SO-DIMM_B1*
F_PANEL
SPEAKER
SATA6G_2 SATA6G_1
AT_ATX_SEL
CHASSIS
CLRTC
ALC
887-VD2
AAFP
KBMS
_U32G1
_E12
AUDIO
Super
I/O
LAN1_U32G1_E34
LAN2_U32G1_12
8Mb
BIOS
LGA1150
Intel®
H81
Realtek®
8111H
Realtek®
8111H
PCIEX1 SPK_OUT
BATTERY
ATX12V
CPU_FANCHA_FAN
LPC_DEBUG
COM1
UIM
COM2 COM3
COM8 COM10
COM9
COM11
COM12
COM7
COM4 COM5 COM6
LPC_DEBUG
MPCIE
MSATA
USB3-6
USB9-12
VGA1
VGA2
M.2(WIFI)
6
8
7
5
3
4
1
12 9 11 10 13
5
14
15
16
15
1 2
17
2.2 Motherboard layout
Place this side
towards the rear
of the chassis
NOTE: Place four screws into the holes indicated by circles to secure the
motherboard to the chassis.
CAUTION! Do not overtighten the screws! Doing so can damage the
motherboard.

2-3
Chapter 2: Motherboard information
Connectors/Jumpers/Slots Page
1. Serial port connectors (10-1 pin COM1~ COM12) 2-14
2. LPC debug header 2-14
3. DDR3L SO-DIMM slots 2-9
4. Intel® LGA1150 CPU socket 2-4
5. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V) 2-15
6. SATA connectors (7-pin SATA6G_1, SATA6G_2) 2-15
7. Speaker connector (4-1 pin SPEAKER) 2-16
8. System panel connector (10-1 pin F_PANEL) 2-16
9. AT/ATX mode selection (3-pin AT_ATX_SEL) 2-11
10. Chassis Intrusion header (4-pin CHASSIS) 2-11
11. Clear RTC RAM (2-pin CLRTC) 2-10
12. CPU and chassis fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN) 2-17
13. Internal stereo speaker header (4-pin SPK_OUT) 2-17
14. Front panel audio connector (10-1 pin AAFP) 2-18
15. mSATA/mPCIe combo slot (MSATA_MPCIE) 2-18
16. M.2 Wi-Fi 2-19
17. UIM socket 2-19

H81I-CM-AA
2-4
IMPORTANT: Unplug all power cables before installing the CPU.
CAUTION!
• 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. The manufacturer will
shoulder the cost of repair only if the damage is shipment/transit-related.
• Keep the cap after installing the motherboard. The manufacturer 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.
2.3 Central Processing Unit (CPU)
The motherboard comes with a surface mount LGA1150 socket designed for the
Intel®4th Generation Core™ i7 / Core™ i5 / Core™ i3, Pentium®, and Celeron®
processors.
LGA1150

2-5
Chapter 2: Motherboard information
2.3.1 Installing the CPU
1
A
B
2 3
CAUTION! Ensure that you install the correct CPU designed for LGA 1150
only. DO NOT install a CPU designed for LGA1155 and LGA1156 sockets on
the LGA1150 socket.

H81I-CM-AA
2-6
A
B
C
4
5

2-7
Chapter 2: Motherboard information
2.3.2 CPU heatsink and fan assembly installation
CAUTION! 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
B
A
A
B
1
2
3 4

H81I-CM-AA
2-8
A
B
B
A
To uninstall the CPU heatsink and fan assembly
2
1

2-9
Chapter 2: Motherboard information
2.4 System memory
This motherboard comes with two Double Data Rate 3 (DDR3) Small Outline Dual Inline
Memory Module (SO-DIMM) sockets. The gure below illustrates the location of the DDR3
SO-DIMM sockets:
Channel Sockets
Channel A SO-DIMM_A1*
Channel B SO-DIMM_B1*
Installing a DIMM
SO-DIMM_A1*
SO-DIMM_B1*
1 2
To remove a DIMM
B
A
B
A
A
DIMM_B1*
DIMM_A1*
DIMM_A1*
DIMM_B1*
Recommended memory configuration

H81I-CM-AA
2-10
2.5 Jumpers
1. 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.
NOTE: If the steps above do not help, remove the onboard battery and move
the jumper again to clear the CMOS RTC RAM data. After clearing the CMOS,
reinstall the battery.
CLRTC
Connector type HEADER 1x2p, 2.54mm pitch, S/T

2-11
Chapter 2: Motherboard information
2. AT/ATX mode selection (3-pin AT_ATX_SEL)
Pins
1-2 (Default) ATX mode
2-3 AT mode
21 2 3
High Active
(Default)
Low Active
AT_ATX_SEL
Connector type HEADER 1x3p, 2.54mm pitch, S/T
3. 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 connector. The
chassis intrusion sensor or switch sends a low-level signal to this connector
when a chassis component is installed. The signal is then generated as a chassis
intrusion event.
PIN 1
+5VSB_MB Chassis Signal GND
CHASSIS
Connector type HEADER 4p, K2, 2.54mm pitch

H81I-CM-AA
2-12
2.6 Connectors
2.6.1 Rear panel connectors
7
3
3
1
8
5 6
2 4
1. PS/2 keyboard/mouse port (purple/green). This port is for a PS/2 keyboard
or mouse.
2. LAN (RJ-45) ports. These ports allow Gigabit connection to a Local Area
Network (LAN) through a network hub.
LAN port LED indications
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. Video Graphics Adapter (VGA) ports. These 15-pin ports are for VGA
monitors or other VGA-compatible devices.
4. USB 2.0 ports. These 4-pin Universal Serial Bus (USB) ports are for USB
2.0/1.1 devices.
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, and 5.1 channel congurations, the function of this port becomes Front
Speaker Out.

2-13
Chapter 2: Motherboard information
7. USB 3.2 Gen 1 (up to 5Gbps) ports. These 9-pin Universal Serial Bus
(USB) ports are for USB 3.2 Gen 1 devices.
• USB 3.2 Gen 1 devices can only be used for data storage.
• We strongly recommend that you connect USB 3.2 Gen 1 devices to USB
3.2 Gen 1 ports for faster and better performance from your USB 3.2 Gen 1
devices.
8. Microphone port (pink). This port connects a microphone.