No part of this documentation may be reproduced, transcribed, transmitted, or
translated in any language, in any form or by any means, except duplication of
documentation by the purchaser for backup purpose, without written consent of
ASRock Inc.
Products and corporate names appearing in this documentation may or may not
be registered trademarks or copyrights of their respective companies, and are used
only for identication or explanation and to the owners’ benet, without intent to
infringe.
Disclaimer:
Specications and information contained in this documentation are furnished for
informational use only and subject to change without notice, and should not be
constructed as a commitment by ASRock. ASRock assumes no responsibility for
any errors or omissions that may appear in this documentation.
With respect to the contents of this documentation, ASRock does not provide
warranty of any kind, either expressed or implied, including but not limited to
the implied warranties or conditions of merchantability or tness for a particular
purpose.
In no event shall ASRock, its directors, ocers, employees, or agents be liable for
any indirect, special, incidental, or consequential damages (including damages for
loss of prots, loss of business, loss of data, interruption of business and the like),
even if ASRock has been advised of the possibility of such damages arising from any
defect or error in the documentation or product.
e terms HDMITM and HDMI High-Denition Multimedia Interface, and the HDMI
logo are trademarks or registered trademarks of HDMI Licensing LLC in the United
States and other countries.
is device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation.
CALIFORNIA, USA ONLY
e Lithium batter y adopted on this motherboard contains Perchlorate, a toxic substance
controlled in Perchlorate Best Management Practices (BMP) regulations passed by the
California Legislature. When you discard the Lithium battery in California, USA, please
follow the related regulations in advance.
“Perchlorate Material-special handling may apply, see w ww.dtsc.ca.gov/hazardouswaste/
perchlorate”
ank you for purchasing ASRock H81M-ITX/WiFi motherboard, a reliable
motherboard produced under ASRock ’s consistently stringent quality control.
It delivers excellent performance with robust design conforming to ASRock ’s
commitment to quality and endurance.
In this manual, Chapter 1 and 2 contains the introduction of the motherboard
and step-by-step installation guides. Chapter 3 contains the operation guide of the
soware and utilities. Chapter 4 contains the conguration guide of the BIOS setup.
Becau se the motherboard specication s and the BIOS soware might be upd ated, the
content of this documentation will be subject to change without notice. In c ase any
modications of this documentation occur, the updated version will be available on
ASRock’s website without further notice. If you require te chnical suppor t related to
this motherboard, plea se visit our webs ite for specic information about the model
you are using. You may nd the latest VGA cards and CPU support list on ASRock’s
website a s well. ASRock website http://www.as rock.c om.
1.1 Package Contents
ASRock H81M-ITX/WiFi Motherboard (Mini-ITX Form Factor)
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ASRock H81M-ITX/WiFi Quick Installation Guide
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ASRock H81M-ITX/WiFi Support CD
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1 x I/O Panel Shield
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2 x Serial ATA (SATA) Data Cables (Optional)
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1 x WiFi-802.11n Module
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1 x SMA WiFi Antenna Cable
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1 x ASRock WiFi 2.4 GHz Antenna
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1 x WiFi Module Bracket
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2 x Screws for WiFi Module
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1.2 Specications
Platform
CPU
Chipset
Memory
Expansion
Slot
Graphics
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Mini-ITX Form Factor
Solid Capacitor design
High Density Glass Fabric PCB
Supports New 4th and 4th Generation Intel® CoreTM i7/i5/i3/
Xeon®/Pentium®/Celeron® Processors (Socket 1150)
Supports Intel® Turbo Boost 2.0 Technology
Intel® H81
Dual Channel DDR3 Memory Technology
2 x DDR3 DIMM Slots
Supports DDR3 1600/1333/1066 non-ECC, un-buered
memory
Max. capacity of system memor y: 16GB (see CAUTION)
* For detailed product infor mation, plea se visit our website: http://ww w.asrock.com
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bit / 7 32-bit / 7 64-bit
FCC, CE, WHQL
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ErP/EuP ready (ErP/EuP ready power supply is required)
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H81M-ITX/WiFi
Please realize that there is a certain risk involved w ith overclocking , including adju sting the setting in the BIOS, applying Untie d Overclocking Technology, or using thirdparty o verclocking tool s. Overclocking may ae ct your system’s stability, or even cause
damage to the components and devic es of your system. It should be d one at your own
risk and expense. We are not re sponsible for possibl e damage cause d by overclocking.
Due to limitation , the actual memory size may be less than 4GB for the reser vation
for system usage under Windows® 32-bit operating system s. Windows® 64-bit operating systems do not h ave such limitations. You can use ASRock XFast RA M to utilize
the memory that Windows® cannot use.
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1.3 Motherboard Layout
Intel
H81
DDR 3_B1 (6 4 bit, 24 0-pin m odule )
DDR 3_A1 (6 4 bit, 24 0-pin m odule )
CMOS
Batt ery
ATXPWR1
Top:
RJ- 45
USB 2 .0
T: USB0
B: US B1
CLRCMO S1
1
HDLED RESET
PLED PWRBT N
PANEL1
1
1
HD_AU DIO1
H8 1M -IT X/ Wi Fi
Ro HS
CHA_FAN 1
32M b
BIO S
HDM I1
VGA1
DVI 1
Audio
CODEC
PCIE1
US B 3. 0
TPMS1
1
SATA_3
USB 3. 0
T: USB1
B: USB 2
Top:
LINE IN
Cente r:
FRONT
Botto m:
MIC IN
USB_6_ 7
1
ATX12V 1
SATA_2
SATA3_1 S ATA3_0
USB_4_ 5
1
MPCIE 1
CPU_FAN 1
CI1
1
USB 2. 0
T: USB2
B: USB 3
PS2
Keybo ard
/Mous e
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No. Description
1CPU Fan Connector (CPU_FAN1)
2ATX 12V Power Connector (ATX12V1)
32 x 240-pin DDR3 DIMM Slots (DDR3_A1, DDR3_B1)
4Clear CMOS Jumper (CLRCMOS1)
5Chassis Intrusion Header (CI1)
6ATX Power Connector (ATXPWR1)
7TPM Header (TPMS1)
8USB 2.0 Header (USB_6_7)
9System Panel Header (PANEL1)
10 USB 2.0 Header (USB_4_5)
11 SATA3 Connector (SATA3_0)
12 SATA3 Connector (SATA3_1)
13 SATA2 Connector (SATA_2)
14 SATA2 Connector (SATA_3)
15 Front Panel Audio Header (HD_AUDIO1)
16 Chassis Fan Connector (CHA_FAN1)
H81M-ITX/WiFi
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1.4 I/O Panel
1235
No. DescriptionNo. Description
1USB 2.0 Ports (USB_2 _3)7USB 2.0 Ports (USB_01)
2D-Sub Port8USB 3.0 Ports (USB3_1_2)
3LAN RJ-45 Port*9HDMI Port
4Line In (Light Blue)10DVI-D Port
5Front Speaker (Lime)11PS/2 Mouse/Keyboard Port
6Microphone (Pink)
* ere are two LEDs on each LAN port. Ple ase refer to the table below for the LAN port LED indications.
1.5 WiFi-802.11n Module and ASRock WiFi 2.4GHz Antenna
WiFi-802.11n Module
WiFi-802.11n module is an easy-to-use wireless local area network (WLAN)
adapter to support WiFi function. With WiFi-802.11n module, you can easily create
a wireless environment and enjoy the convenience of wireless network connectivity.
erefore, from anywhere within the signal range, you will be able to play LAN
games, connect to the internet, access and share printers, and make Internet phone
calls easily.
Antenna Port
ASRock WiFi 2.4GHz Antenna
WiFi-802.11n module supports Station mode. You can use the wireless function to
connect the access point (AP), or connect with other stations in the wireless range
instead. ere are two choices provided in station mode: Infrastructure mode
and Ad-hoc mode. Please read below introduction for the dierences of these two
modes.
WiFi-802.11n Module
Infrastructure Mode
If you have a present access point (AP) in your wireless network environment for
this station to join, you can set up WiFi-802.11n module in Infrastructure mode.
In this mode, WiFi-802.11n module acts as a wireless adapter. In other words, it is
centered on an AP that provides Internet access and LAN communication for the
wireless stations, such as PC, notebook and other devices.
Ad-hoc Mode
If you don’t have a present access point in your wireless network environment, you
can set up WiFi-802.11n module in Ad-hoc mode. e wireless network brings
together workstations, PC, notebook and other devices for wireless communication.
* e transmission speed may vary according to the environment.
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WiFi Module and WiFi Antenna Installation Guide
Step 1
Prepare the WiFi Module, WiFi Module Bracket,
and the two screws that come with the package.
Prepare a Phillips #0 screwdriver.
Step 2
Attach the WiFi Module Bracket to the WiFi
card, aligning the screw hole on the WiFi card
with the screw hole on the bracket. Use the screw
to attach the bracket and the WiFi card, but do
not tighten the screw.
Step 3
Insert the WiFi Module Card into the vertical
mini PCI Express slot (MPCIE1).
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Step 4
Tighten the screw that holds the card in place.
H81M-ITX/WiFi
Step 5
Tighten the screw that attaches the WiFi
Module Bracket to the WiFi card (installed
in Step 2).
Step 6
Prepare the SMA Wi-Fi Antenna Cable and
WiFi 2.4 GHz Antenna that come with the
package.
Step 7
Attach the SMA Wi-Fi Antenna Cable to
the WiFi Module.
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Step 8
Insert the RP-SMA Wi-Fi Antenna Con-
nector to the antenna port on the I/O
shield.
Step 9
Fasten the screw nuts to secure the
antenna connector.
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Step 10
Connect the two WiFi 2.4 GHz
Antenna to the antenna connector. Turn
the antenna clockwise until it is securely
connected.
H81M-ITX/WiFi
Step 11
Set the WiFi 2.4 GHz Antenna at 90-degree
angle.
*You may need to adjust the direction of
the antenna for a stronger signal.
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Chapter 2 Installation
is is a Mini-ITX form factor motherboard. Before you install the motherboard,
study the conguration of your chassis to ensure that the motherboard ts into it.
Pre-installation Precautions
Take note of the following precautions before you install motherboard components
or change any motherboard settings.
Make sure to unplug the power cord before installing or removing the motherboard
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components. Failure to do so may cause physical injuries and damages to motherboard
components.
In order to avoid damage from static electricit y to the motherboard’s components,
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NEVER place your motherboard directly on a carpet. Also remember to use a grounded
wrist strap or touch a safety grounded object before you handle the components.
Hold components by the edges and do not touch the ICs.
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Whenever you uninstall any components, place them on a grounded anti-static pad or
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in the bag that comes with the components.
When placing screws to secure the motherboard to the chassis, please do not over-
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tighten the screws! Doing so may damage the motherboard.
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2.1 Installing the CPU
1. Before you insert the 1150-Pin CPU into the socket, please check if the PnP cap i s on
the socket, if the CPU surface is unclean, or if there are any b ent pins in the socket.
Do not force to insert the CPU into the socket if above situation i s found. Other wise,
the CPU will be seriously damaged.
2. Unplug all power c ables before installing the CPU.
1
H81M-ITX/WiFi
A
B
2
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4
5
3
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H81M-ITX/WiFi
Please save and replace the cover if the processor is removed. e cover must be plac ed
if you wish to return the mothe rboard for aer ser vice.
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2.2 Installing the CPU Fan and Heatsink
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N
FA
_
U
P
C
H81M-ITX/WiFi
2.3 Installing Memory Modules (DIMM)
is motherboard provides two 240-pin DDR3 (Double Data Rate 3) DIMM slots,
and supports Dual Channel Memory Technology.
1. For dual channel conguration, you always need to install identical (the same
brand, speed, size and chip-ty pe) DDR3 DIMM pairs.
2. It is unable to activate Dual Channel Me mory Technology with only one me mory
module installed.
3. It is not allowed to in stall a DDR or DDR2 memory module into a DDR3 slot;
otherwise, this motherboard and DIMM may be damaged.
e DIMM only ts in one correct orientation. It will cause permanent damage to
the mothe rboard and the DIMM if you force the DIMM into the slot at incorrect
orientation.
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2
3
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2.4 Expansion Slots (PCI Express Slots)
ere is 1 PCI Express slot and 1 mini-PCI Express slot on the motherboard.
Before installing an expansion card, please make sure that the power supply is
switched o or the power cord i s unplug ged. Please read the documentation of the
expan sion card and mak e neces sary hardware settings for the card before you star t
the installation.
PCIe slot:
PCIE1 (PCIe 2.0 x16 slot) is used for PCI Express x16 lane width graphics cards.
mini-PCIe slot:
MPCIE1 (mini-PCIe slot) is used for WiFi module.
H81M-ITX/WiFi
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2.5 Jumpers Setup
e illustration shows how jumpers are setup. When the jumper cap is placed on
the pins, the jumper is “Short”. If no jumper cap is placed on the pins, the jumper
is “Open”. e illustration shows a 3-pin jumper whose pin1 and pin2 are “Short”
when a jumper cap is placed on these 2 pins.
Clear CMOS Jumper
(CLRCMOS1)
(see p.6, No. 4)
CLRCMOS1 allows you to clear the data in CMOS. To clear and reset the system
parameters to default setup, please turn o the computer and unplug the power
cord from the power supply. Aer waiting for 15 seconds, use a jumper cap to
short pin2 and pin3 on CLRCMOS1 for 5 seconds. However, please do not clear
the CMOS right aer you update the BIOS. If you need to clear the CMOS when
you just nish updating the BIOS, you must boot up the system rst, and then shut
it down before you do the clear-CMOS action. Please be noted that the password,
date, time, and user default prole will be cleared only if the CMOS battery is
removed.
Clear CMOSDefault
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If you clear the CMOS, the case open may be detected. Please adjust the BIOS option
“Clear Status” to cl ear the record of prev ious chassis intru sion status.
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