ASROCK FM2A75M-ITX User manual

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ASRock FM2A75M-ITX Motherboard
English
Copyright Notice:
No part of this installation guide may be reproduced, transcribed, transmitted, or trans-
lated 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 guide may or may not be registered
trademarks or copyrights of their respective companies, and are used only for identifica-
tion or explanation and to the owners’ benefit, without intent to infringe.
Disclaimer:
Specifications and information contained in this guide are furnished for informational use
only and subject to change without notice, and should not be constructed as a commit-
ment by ASRock. ASRock assumes no responsibility for any errors or omissions that may
appear in this guide.
With respect to the contents of this guide, ASRock does not provide warranty of any kind,
either expressed or implied, including but not limited to the implied warranties or condi-
tions of merchantability or fitness for a particular purpose. In no event shall ASRock, its
directors, officers, employees, or agents be liable for any indirect, special, incidental, or
consequential damages (including damages for loss of profits, loss of business, loss of
data, interruption of business and the like), even if ASRock has been advised of the pos-
sibility of such damages arising from any defect or error in the guide or product.
This 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
The Lithium battery 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
www.dtsc.ca.gov/hazardouswaste/perchlorate”
ASRock Website: http://www.asrock.com
Published September 2012
Copyright©2012 ASRock INC. All rights reserved.

2ASRock FM2A75M-ITX Motherboard
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Motherboard Layout
1 CPU Fan Connector (CPU_FAN1) 13 SATA3 Connector (SATA3_4)
2 CPU Fan Connector (CPU_FAN2) 14 SATA3 Connector (SATA3_1)
3 ATX Power Connector (ATXPWR1) 15 SATA3 Connector (SATA3_2)
4 Chassis Speaker Header (SPEAKER1) 16 Southbridge Controller
5 2 x 240-pin DDR3 DIMM Slots 17 SPI Flash Memory (64Mb)
(Dual Channel: DDR3_A1, DDR3_B1) 18 PCI Express 2.0 x16 Slot (PCIE1)
6 Chassis Fan Connector (CHA_FAN1) 19 USB 3.0 Header (USB3_0_1)
7 CPU Socket 20 ATX 12V Power Connector (ATX12V1)
8 System Panel Header (PANEL1) 21 Front Panel Audio Header (HD_AUDIO1)
9 USB 2.0 Header (USB_45) 22 HDMI_SPDIF Header (HDMI_SPDIF1)
10 USB 2.0 Header (USB_67) 23 Clear CMOS Jumper (CLRCMOS1)
11 Consumer Infrared Module Header (CIR1) 24 CPU Heatsink Retention Module
12 SATA3 Connector (SATA3_3) 25 Chassis Intrusion Header (CI1)
ATXPWR1
DDR3_B1 (64 bit, 240-pin module)
DDR3_A1 (64 bit, 240-pin module)
SOCKET FM2
PCIE1
AMD
A75 FCH
(Hudson-D3)
Chipset
CPU_FAN1
CPU_FAN2
DDR3 2600+
Dual Graphics
X Fast RAM
DX11
Front USB 3.0
USB 2.0
T: US B0
B: USB1
Ps2
Keyboard
Top:
CTR BASS
Center:
REAR SPK
Bottom:
Optical
SPDIF
Top:
LINE IN
Center:
FRONT
Bottom:
MIC IN
Top:
RJ-45
USB 3.0
T: USB2
B: USB3
USB 2.0
T: USB2
B: USB3
eSATA3_1
HDMI1
VGA1
HD_AUDIO1
1
1
CLRCMOS1
64Mb
BIOS
RoHS
FM2A75M-ITX
SPEAKER1
1
HDLED RESET
PLED PWRBTN
1
PANEL1
CHA_FAN1
SATA3_2
SATA3_4
SATA3_1
SATA3_3
CIR1
1
1
USB_67
1
USB_45
AUDIO
CODEC
1
HDMI_SPDIF1
CMOS
Battery
ATX12V1
USB3_0_1
12
14
15
16
17
18
19
20
21
3
4
7
9
8
5
6
10
11
12
13
22
23
CI1
1
25
24

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ASRock FM2A75M-ITX Motherboard
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I/O Panel
** There are two LED next to the LAN port. Please refer to the table below for the LAN port LED
indications.
LAN Port LED Indications
Activity/Link LED SPEED LED
Status Description Status Description
Off No Link Off 10Mbps connection
Blinking Data Activity Orange 100Mbps connection
On Link Green 1Gbps connection
* 1 USB 2.0 Ports (USB01) 8 Line In (Light Blue)
* 2 USB 2.0 Ports (USB23) *** 9 Front Speaker (Lime)
** 3 LAN RJ-45 Port 10 Microphone (Pink)
4 D-Sub Port (VGA1) 11 HDMI Port (HDMI1)
5 Central / Bass (Orange) 12 USB 3.0 Ports (USB3_23)
6 Rear Speaker (Black) **** 13 eSATA3 Connector (eSATA3_1)
7 Optical SPDIF Out Port 14 PS/2 Keyboard Port (Purple)
LAN Port
ACT/LINK
LED
SPEED
LED
* It is recommended to install the USB Keyboard/Mouse cable to USB 2.0 ports (USB01 or
USB23) instead of USB 3.0 ports.
1234
5
6
7
8
9
10
11
13
14 12
*** If you use 2-channel speaker, please connect the speaker’s plug into “Front Speaker Jack”.
See the table below for connection details in accordance with the type of speaker you use.
TABLE for Audio Output Connection
Audio Output Channels Front Speaker Rear Speaker Central / Bass Line In or
(No. 9) (No. 6) (No. 5) Side Speaker
(No. 8)
2 V -- -- --
4 V V -- --
6 V V V --
8 V V V V

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To enable Multi-Streaming function, you need to connect a front panel audio cable to the front
panel audio header. After restarting your computer, you will find “Mixer” tool on your system.
Please select “Mixer ToolBox” , click “Enable playback multi-streaming”, and click “ok”.
Choose “2CH”, “4CH”, “6CH”, or “8CH” and then you are allowed to select “Realtek HDA Pri-
mary output” to use Rear Speaker, Central/Bass, and Front Speaker, or select “Realtek HDA
Audio 2nd output” to use front panel audio.
**** eSATA3 connector supports SATA Gen3 in cable 1M.

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1. Introduction
Thank you for purchasing ASRock FM2A75M-ITX motherboard, a reliable moth-
erboard produced under ASRock’s consistently stringent quality control. It delivers
excellent performance with robust design conforming to ASRock’s commitment to
quality and endurance.
This Quick Installation Guide contains introduction of the motherboard and step-by-
step installation guide. More detailed information of the motherboard can be found
in the user manual presented in the Support CD.
Because the motherboard specifications and the BIOS software might be
updated, the content of this manual will be subject to change without no-
tice. In case any modifications of this manual occur, the updated version
will be available on ASRock website without further notice. You may find
the latest VGA cards and CPU support lists on ASRock website as well.
ASRock website http://www.asrock.com
If you require technical support related to this motherboard, please visit
our website for specific information about the model you are using.
www.asrock.com/support/index.asp
1.1 Package Contents
ASRock FM2A75M-ITX Motherboard (Mini-ITX Form Factor)
ASRock FM2A75M-ITX Quick Installation Guide
ASRock FM2A75M-ITX Support CD
2 x Serial ATA (SATA) Data Cables (Optional)
1 x I/O Panel Shield
ASRock Reminds You...
To get better performance in Windows®8 / 8 64-bit / 7 / 7 64-bit / VistaTM /
VistaTM 64-bit, it is recommended to set the BIOS option in Storage Con-
figuration to AHCI mode. For the BIOS setup, please refer to the “User
Manual” in our support CD for details.

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1.2 Specifications
Platform - Mini-ITX Form Factor
- All Solid Capacitor design
CPU - Support for Socket FM2 100W processors
- Supports AMD’s Cool ‘n’ QuietTM Technology
- UMI-Link GEN2
Chipset - AMD A75 FCH (Hudson-D3)
Memory - Dual Channel DDR3 Memory Technology
- 2 x DDR3 DIMM slots
- Support DDR3 2600+(OC)/2400(OC)/2133(OC)/1866/1600/
1333/1066/800 non-ECC, un-buffered memory
(see CAUTION 1)
- Max. capacity of system memory: 16GB (see CAUTION 2)
- Supports Intel®Extreme Memory Profile (XMP) 1.3 / 1.2
- Supports AMD Memory Profile (AMP)
Expansion Slot - 1 x PCI Express 2.0 x16 slot
- Supports AMD Dual Graphics
Graphics - AMD Radeon HD 7000 graphics
- DirectX 11, Pixel Shader 5.0
- Max. shared memory 512MB
- Dual VGA Output: support HDMI and D-Sub ports by
independent display controllers
- Supports HDMI 1.4a Technology with max. resolution up to
1920x1200 @ 60Hz
- Supports D-Sub with max. resolution up to 1920x1600 @
60Hz
- Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and
HBR (High Bit Rate Audio) with HDMI (Compliant HDMI
monitor is required) (see CAUTION 3)
- Supports Blu-ray Stereoscopic 3D with HDMI 1.4a
- Supports AMD Steady VideoTM 2.0: New video post
processing capability for automatic jutter reduction on home/
online video
- Supports HDCP function with HDMI port
- Supports Full HD 1080p Blu-ray (BD) / HD-DVD playback
with HDMI port
Audio - 7.1 CH HD Audio with Content Protection
(Realtek ALC892 Audio Codec)
- Premium Blu-ray audio support
- Supports THX TruStudioTM

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LAN - PCIE x1 Gigabit LAN 10/100/1000 Mb/s
- Realtek RTL8111E
- Supports Wake-On-LAN
- Supports LAN Cable Detection
- Supports Energy Efficient Ethernet 802.3az
- Supports PXE
Rear Panel I/O I/O Panel
- 1 x PS/2 Keyboard Port
- 1 x D-Sub Port
- 1 x HDMI Port
- 1 x Optical SPDIF Out Port
- 4 x Ready-to-Use USB 2.0 Ports
- 1 x eSATA3 Connector
- 2 x Ready-to-Use USB 3.0 Ports
- 1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED
LED)
- HD Audio Jack: Rear Speaker/Central/Bass/Line in/Front
Speaker/Microphone
SATA3 - 4 x SATA3 6.0 Gb/s connectors, support RAID (RAID 0,
RAID 1 and RAID 10), NCQ, AHCI and “Hot Plug” functions
USB 3.0 - 2 x Rear USB 3.0 ports, support USB 1.1/2.0/3.0 up to
5Gb/s
- 1 x Front USB 3.0 header (supports 2 USB 3.0 ports),
supports USB 1.1/2.0/3.0 up to 5Gb/s
Connector - 4 x SATA3 6.0Gb/s connectors
- 1 x CIR header
- 1 x HDMI_SPDIF header
- 1 x Chassis Intrusion header
- 2 x CPU Fan connectors (1 x 4-pin, 1 x 3-pin)
- 1 x Chassis Fan connector (4-pin)
- 24 pin ATX power connector
- 4 pin 12V power connector
- Front panel audio connector
- 2 x USB 2.0 headers (support 4 USB 2.0 ports)
- 1 x USB 3.0 header (supports 2 USB 3.0 ports)
BIOS Feature - 64Mb AMI UEFI Legal BIOS with GUI support
- Supports “Plug and Play”
- ACPI 1.1 Compliance Wake Up Events
- Supports jumperfree
- SMBIOS 2.3.1 Support
- DRAM, APU PCIE VDDP, SB, CPU and CPU NB/GFX
Voltage Multi-adjustment

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Support CD - Drivers, Utilities, AntiVirus Software (Trial Version), AMD
Live! Explorer, AMD Fusion, CyberLink MediaEspresso 6.5
Trial, ASRock MAGIX Multimedia Suite - OEM, Google
Chrome Browser and Toolbar
Hardware - CPU Temperature Sensing
Monitor - Chassis Temperature Sensing
- CPU Fan Tachometer
- Chassis Fan Tachometer
- CPU Quiet Fan
- CPU/Chassis Fan Multi-Speed Control
- CASE OPEN detection
- Voltage Monitoring: +12V, +5V, +3.3V, Vcore
OS - Microsoft® Windows®8 / 8 64-bit / 7 / 7 64-bit / VistaTM /
VistaTM 64-bit compliant
Certifications - FCC, CE, WHQL
- ErP/EuP Ready (ErP/EuP ready power supply is required)
* For detailed product information, please visit our website: http://www.asrock.com
WARNING
Please realize that there is a certain risk involved with overclocking,
including adjusting the setting in the BIOS, applying Untied Overclocking
Technology, or using third-party overclocking tools. Overclocking may
affect your system’s stability, or even cause damage to the components
and devices of your system. It should be done at your own risk and
expense. We are not responsible for possible damage caused by
overclocking.

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CAUTION!
1. Whether 2600/2400/2133/1866/1600MHz memory speed is
supported depends on the CPU you adopt. If you want to adopt
DDR3 2600/2400/2133/1866/1600 memory module on this
motherboard, please refer to the memory support list on our
website for the compatible memory modules.
ASRock website http://www.asrock.com
2. Due to the operating system limitation, the actual memory size
may be less than 4GB for the reservation for system usage un-
der Windows®8 / 7 / VistaTM. For Windows®64-bit OS with 64-
bit CPU, there is no such limitation. You can use ASRock XFast
RAM to utilize the memory that Windows®cannot use.
3. xvYCC and Deep Color are only supported under Windows®8
64-bit / 8 / 7 64-bit / 7. Deep Color mode will be enabled only
if the display supports 12bpc in EDID. HBR is supported under
Windows®8 64-bit / 8 / 7 64-bit / 7 / VistaTM 64-bit / VistaTM.

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1.3 Unique Features
ASRock Extreme Tuning Utility (AXTU)
ASRock Extreme Tuning Utility (AXTU) is an all-in-one tool to
ne-tune different system functions in a user-friendly interface,
which includes Hardware Monitor, Fan Control, Overclocking,
OC DNA, IES and XFast RAM. In Hardware Monitor, it shows
the major readings of your system. In Fan Control, it shows the
fan speed and temperature for you to adjust. In Overclocking,
you are allowed to overclock CPU frequency for optimal system
performance. In OC DNA, you can save your OC settings as
a profile and share it with your friends. Your friends then can
load the OC profile to their own system to get the same OC set-
tings. In IES (Intelligent Energy Saver), the voltage regulator
can reduce the number of output phases to improve efficiency
when the CPU cores are idle without sacrificing computing per-
formance. In XFast RAM, it fully utilizes the memory space that
cannot be used under Windows®OS 32-bit CPU.
ASRock Instant Boot
ASRock Instant Boot allows you to turn on your PC in just a few
seconds, provides a much more efficient way to save energy,
time, money, and improves system running speed for your sys-
tem. It leverages the S3 and S4 ACPI features which normally
enable the Sleep/Standby and Hibernation modes in Windows®
to shorten boot up time. By calling S3 and S4 at specific timing
during the shutdown and startup process, Instant Boot allows
you to enter your Windows®desktop in a few seconds.
ASRock Instant Flash
ASRock Instant Flash is a BIOS flash utility embedded in Flash
ROM. This convenient BIOS update tool allows you to update
system BIOS without entering operating systems first like MS-
DOS or Windows®. With this utility, you can press the <F6> key
during the POST or the <F2> key to enter into the BIOS setup
menu to access ASRock Instant Flash. Just launch this tool and
save the new BIOS file to your USB flash drive, floppy disk or
hard drive, then you can update your BIOS only in a few clicks
without preparing an additional floppy diskette or other compli-
cated flash utility. Please be noted that the USB flash drive or
hard drive must use FAT32/16/12 file system.

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ASRock FM2A75M-ITX Motherboard
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ASRock APP Charger
If you desire a faster, less restricted way of charging your
Apple devices, such as iPhone/iPad/iPod Touch, ASRock has
prepared a wonderful solution for you - ASRock APP Charger.
Simply install the APP Charger driver, it makes your iPhone
charge much quickly from your computer and up to 40% faster
than before. ASRock APP Charger allows you to quickly charge
many Apple devices simultaneously and even supports continu-
ous charging when your PC enters into Standby mode (S1),
Suspend to RAM (S3), hibernation mode (S4) or power off (S5).
With APP Charger driver installed, you can easily enjoy the mar-
velous charging experience.
ASRock XFast USB
ASRock XFast USB can boost USB storage device perfor-
mance. The performance may depend on the properties of the
device.
ASRock XFast LAN
ASRock XFast LAN provides a faster internet access, which
includes the benefits listed below. LAN Application Prioritiza-
tion: You can configure your application’s priority ideally and/or
add new programs. Lower Latency in Game: After setting online
game’s priority higher, it can lower the latency in games. Traffic
Shaping: You can watch Youtube HD videos and download si-
multaneously. Real-Time Analysis of Your Data: With the status
window, you can easily recognize which data streams you are
transferring currently.
ASRock XFast RAM
ASRock XFast RAM is a new function that is included into AS-
Rock Extreme Tuning Utility (AXTU). It fully utilizes the memory
space that cannot be used under Windows®OS 32-bit CPU.
ASRock XFast RAM shortens the loading time of previously
visited websites, making web surfing faster than ever. And it
also boosts the speed of Adobe Photoshop 5 times faster. An-
other advantage of ASRock XFast RAM is that it reduces the
frequency of accessing your SSDs or HDDs in order to extend
their lifespan.

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ASRock Crashless BIOS
ASRock Crashless BIOS allows users to update their BIOS
without fear of failing. If power loss occurs during the BIOS up-
date process, ASRock Crashless BIOS will automatically finish
the BIOS update procedure after regaining power. Please note
that BIOS files need to be placed in the root directory of your
USB disk. Only USB2.0 ports support this feature.
ASRock OMG (Online Management Guard)
Administrators are able to establish an internet curfew or restrict
internet access at specified times via OMG. You may schedule
the starting and ending hours of internet access granted to other
users. In order to prevent users from bypassing OMG, guest
accounts without permission to modify the system time are re-
quired.
ASRock Internet Flash
ASRock Internet Flash searches for available UEFI firmware
updates from our servers. In other words, the system can auto-
detect the latest UEFI from our servers and flash them without
entering Windows®OS. Please note that you must be running
on a DHCP configured computer in order to enable this function.
ASRock UEFI System Browser
ASRock UEFI system browser is a useful tool included in
graphical UEFI. It can detect the devices and configurations
that users are currently using in their PC. With the UEFI system
browser, you can easily examine the current system configura-
tion in UEFI setup.
ASRock On/Off Play Technology
ASRock On/Off Play Technology allows users to enjoy the great
audio experience from the portable audio devices, such like
MP3 player or mobile phone to your PC, even when the PC is
turned off (or in ACPI S5 mode)! This motherboard also provides
a free 3.5mm audio cable (optional) that ensures users the most
convenient computing environment.

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ASRock Dehumidifier Function
Users may prevent motherboard damages due to dampness by
enabling “Dehumidifier Function”. When enabling Dehumidifier
Function, the computer will power on automatically to dehumidi-
fy the system after entering S4/S5 state.
ASRock Easy RAID Installer
ASRock Easy RAID Installer can help you to copy the RAID
driver from a support CD to your USB storage device. After
copying the RAID driver to your USB storage device, please
change “SATA Mode” to “RAID”, then you can start installing the
OS in RAID mode.
ASRock Interactive UEFI
ASRock Interactive UEFI is a blend of system configuration
tools, cool sound effects and stunning visuals. The unprec-
edented UEFI provides a more attractive interface and brings a
lot more amusement.
ASRock Fast Boot
With ASRock’s exclusive Fast Boot technology, it takes less
than 1.5 seconds to logon to Windows®8 from a cold boot. No
more waiting! The speedy boot will completely change your user
experience and behavior.
ASRock X-Boost
Brilliantly designed for combo overclocking, ASRock X-Boost
Technology is able to unleash the hidden power of your CPUs.
Simply press “X” when turning on the PC, X-Boost will automati-
cally overclock the relative components to get up to 15.77%
performance boost! With the smart X-Boost, overclocking CPU
can become a near one-button process.
ASRock Restart to UEFI
Windows®8 brings the ultimate boot up experience. The light-
ning boot up speed makes it hard to access the UEFI setup. AS-
Rock Restart to UEFI technology is designed for those requiring
frequent UEFI access. It is included in ASRock’s exclusive all-
in-one AXTU tuning program that allows users to easily enter
the UEFI automatically when turning on the PC next time. Just
simply enable this function; the PC will be assured to access the
UEFI directly in the very beginning.

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2. Installation
This is a Mini-ITX form factor motherboard. Before you install the motherboard,
study the configuration of your chassis to ensure that the motherboard fits into it.
Pre-installation Precautions
Take note of the following precautions before you install motherboard
components or change any motherboard settings.
Before you install or remove any component, ensure that the
power 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, and/or components.
1. Unplug the power cord from the wall socket before touching any
component.
2. To avoid damaging the motherboard components due to static elec-
tricity, NEVER place your motherboard directly on the carpet or the
like. Also remember to use a grounded wrist strap or touch a safety
grounded object before you handle components.
3. Hold components by the edges and do not touch the ICs.
4. Whenever you uninstall any component, place it on a grounded anti-
static pad or in the bag that comes with the component.
5. When placing screws into the screw holes to secure the mother-
board to the chassis, please do not over-tighten the screws! Doing
so may damage the motherboard.

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2.1 CPU Installation
Step 1. Unlock the socket by lifting the lever up to a 90oangle.
Step 2. Position the CPU directly above the socket such that the CPU corner with
the golden triangle matches the socket corner with a small triangle.
Step 3. Carefully insert the CPU into the socket until it fits in place.
The CPU fits only in one correct orientation. DO NOT force the CPU
into the socket to avoid bending of the pins.
Step 4. When the CPU is in place, press it firmly on the socket while you push
down the socket lever to secure the CPU. The lever clicks on the side tab
to indicate that it is locked.
2.2 Installation of CPU Fan and Heatsink
After you install the CPU into this motherboard, it is necessary to install a
larger heatsink and cooling fan to dissipate heat. You also need to spray
thermal grease between the CPU and the heatsink to improve heat dis-
sipation. Make sure that the CPU and the heatsink are securely fastened
and in good contact with each other. Then connect the CPU fan to the
CPU FAN connector (CPU_FAN1, see Page 2, No. 1 or CPU_FAN2, see
Page 2, No. 2). For proper installation, please kindly refer to the instruc-
tion manuals of the CPU fan and the heatsink.
STEP 1:
Lift Up The Socket Lever
STEP 2 / STEP 3:
Match The CPU Golden Triangle
To The Socket Corner Small
Triangle
STEP 4:
Push Down And Lock
The Socket Lever
CPU Golden Triangle
Lever 90° Up
Socket Corner Small
Triangle

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2.3 Installation of Memory Modules (DIMM)
This motherboard provides two 240-pin DDR3 (Double Data Rate 3) DIMM slots,
and supports Dual Channel Memory Technology. For dual channel configuration,
you always need to install two identical (the same brand, speed, size and chip-
type) memory modules in the DDR3 DIMM slots to activate Dual Channel Memory
Technology. Otherwise, it will operate at single channel mode.
1. It is not allowed to install a DDR or DDR2 memory module into
DDR3 slot;otherwise, this motherboard and DIMM may be
damaged.
2. If you install only one memory module or two non-identical
memory modules, it is unable to activate the Dual Channel
Memory Technology.
Installing a DIMM
Please make sure to disconnect power supply before adding or
removing DIMMs or the system components.
Step 1. Unlock a DIMM slot by pressing the retaining clips outward.
Step 2. Align a DIMM on the slot such that the notch on the DIMM matches the
break on the slot.
The DIMM only fits in one correct orientation. It will cause permanent
damage to the motherboard and the DIMM if you force the DIMM into
the slot at incorrect orientation.
Step 3. Firmly insert the DIMM into the slot until the retaining clips at both ends
fully snap back in place and the DIMM is properly seated.
notch
break
notch break

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2.4 Expansion Slot (PCI Express Slot)
There is 1 PCI Express slot on this motherboard.
PCIE Slot: PCIE1 (PCIE x16 slot) is used for PCI Express x16 lane width graphics
cards.
Installing an expansion card
Step 1. Before installing the expansion card, please make sure that the power
supply is switched off or the power cord is unplugged. Please read the
documentation of the expansion card and make necessary hardware
settings for the card before you start the installation.
Step 2. Remove the system unit cover (if your motherboard is already installed
in a chassis).
Step 3. Remove the bracket facing the slot that you intend to use. Keep the
screws for later use.
Step 4. Align the card connector with the slot and press firmly until the card is
completely seated on the slot.
Step 5. Fasten the card to the chassis with screws.
Step 6. Replace the system cover.

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2.5 Jumpers Setup
The illustration shows how jumpers are
setup. When the jumper cap is placed on
pins, the jumper is “Short”. If no jumper cap
is placed on pins, the jumper is “Open”. The
illustration shows a 3-pin jumper whose
pin1 and pin2 are “Short” when jumper cap
is placed on these 2 pins.
Jumper Setting Description
Clear CMOS Jumper
(CLRCMOS1)
(see p.2, No. 23)
Note: CLRCMOS1 allows you to clear the data in CMOS. To clear and reset the
system parameters to default setup, please turn off the computer and unplug
the power cord from the power supply. After 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 after you update the BIOS. If you need
to clear the CMOS when you just finish updating the BIOS, you must boot
up the system first, and then shut it down before you do the clear-CMOS ac-
tion. Please be noted that the password, date, time, user default profile, 1394
GUID and MAC address will be cleared only if the CMOS battery is removed.
Clear CMOSDefault
If you clear the CMOS, the case open may be detected. Please adjust
the BIOS option “Clear Status” to clear the record of previous chassis
intrusion status.

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ASRock FM2A75M-ITX Motherboard
English
2.6 Onboard Headers and Connectors
Onboard headers and connectors are NOT jumpers. Do NOT place
jumper caps over these headers and connectors. Placing jumper caps
over the headers and connectors will cause permanent damage of the
motherboard!
Serial ATA3 Connectors These four Serial ATA3
(SATA3_1: see p.2, No. 14) (SATA3) connectors support
(SATA3_2: see p.2, No. 15) SATA data cables for internal
(SATA3_3: see p.2, No. 12) storage devices. The current
(SATA3_4: see p.2, No. 13) SATA3 interface allows up to
6.0 Gb/s data transfer rate.
Serial ATA (SATA) Either end of the SATA data
Data Cable cable can be connected to the
(Optional) SATA3 hard disk or the SATA3
connector on this motherboard.
USB 2.0 Headers Besides four default USB 2.0
(9-pin USB_45) ports on the I/O panel, there
(see p.2 No. 9) are two USB 2.0 headers on
this motherboard. Each USB 2.0
header can support two USB
(9-pin USB_67) 2.0 ports.
(see p.2 No. 10)
SATA3_1 SATA3_3
SATA3_2 SATA3_4
P-7
P+7
GND
DUMMY
USB_PWR
USB_PWR
P-6P+6
GND
1
USB 3.0 Header Besides two default USB 3.0
(19-pin USB3_0_1) ports on the I/O panel, there is
(see p.2, No. 19) one USB 3.0 header on this
motherboard. This USB 3.0
header can support two USB 3.0
ports.
1
ID IntA_P_D+
IntA_P_D-
GND
IntA_P_SSTX+
IntA_P_SSTX-
GND
IntA_P_SSRX+
Vbus
IntA_P_D+
IntA_P_D-
GND
IntA_P_SSTX+
IntA_P_SSTX-
GND
IntA_P_SSRX+
IntA_P_SSRX-
Vbus
IntA_P_SSRX-

20 ASRock FM2A75M-ITX Motherboard
English
Front Panel Audio Header This is an interface for the front
(9-pin HD_AUDIO1) panel audio cable that allows
(see p.2 No. 21) convenient connection and
control of audio devices.
Consumer Infrared Module Header This header can be used to
(4-pin CIR1) connect the remote
(see p.2 No. 11) controller receiver.
J_SENSE
OUT2_L
1
MIC_RET
PRESENCE#
GND
OUT2_R
MIC2_R
MIC2_L
OUT_RET
1. High Definition Audio supports Jack Sensing, but the panel wire on
the chassis must support HDA to function correctly. Please follow the
instruction in our manual and chassis manual to install your system.
2. If you use AC’97 audio panel, please install it to the front panel audio
header as below:
A. Connect Mic_IN (MIC) to MIC2_L.
B. Connect Audio_R (RIN) to OUT2_R and Audio_L (LIN) to OUT2_L.
C. Connect Ground (GND) to Ground (GND).
D. MIC_RET and OUT_RET are for HD audio panel only. You don’t
need to connect them for AC’97 audio panel.
E. To activate the front mic.
For Windows®8 / 8 64-bit / 7 / 7 64-bit / VistaTM / VistaTM 64-bit OS:
Go to the “FrontMic” Tab in the Realtek Control panel. Adjust
“Recording Volume”.
System Panel Header This header accommodates
(9-pin PANEL1) several system front panel
(see p.2 No. 8) functions.
Connect the power switch, reset switch and system status indicator
on the chassis to this header according to the pin assignments below.
Note the positive and negative pins before connecting the cables.
PWRBTN (Power Switch):
Connect to the power switch on the chassis front panel. You may con-
figure the way to turn off your system using the power switch.
RESET (Reset Switch):
Connect to the reset switch on the chassis front panel. Press the reset
switch to restart the computer if the computer freezes and fails to per-
form a normal restart.