ASROCK FM2A75 Pro4-M User manual

1
ASRock FM2A75 Pro4-M Motherboard
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 identica-
tion or explanation and to the owners’ benet, without intent to infringe.
Disclaimer:
Specications 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 tness for a particular purpose. In no event shall ASRock, its
directors, ofcers, employees, or agents be liable for any indirect, special, incidental, or
consequential damages (including damages for loss of prots, 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 July 2013
Copyright©2013 ASRock INC. All rights reserved.
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ASRock FM2A75 Pro4-M Motherboard
Motherboard Layout
SOCKET FM2
FM2A75 Pro4-M
AMD
A75 FCH
(Hudson-D3)
Chipset
CMOS
BATTERY
ATXPWR1
DDR3_A1 (64 bit, 240-pin module)
DDR3_A2 (64 bit, 240-pin module)
DDR3_B1 (64 bit, 240-pin module)
DDR3_B2 (64 bit, 240-pin module)
DDR3 2600+
64Mb
BIOS
24.4cm (9.6-in)
24.4cm (9.6-in)
Super
I/O
ATX12V1
PWR_FAN1
CPU_FAN1 CPU_FAN2
LAN
AUDIO
CODEC
1
CLRCMOS1
Front USB 3.0
SATA3_2
SATA3_5
SATA3_1
SATA3_4
HDLED RESET
PLED PWRBTN
1
PANEL1
CHA_FAN1
SPEAKER1
1
IR1
1
PLED1
1
COM1
1
CIR1
1
1
USB5_6
1
USB7_8
1
USB9_10
HD_AUDIO1
1
1
LPT1
PCIE1
PCIE3
PCI1
DX11
ErP/EuP Ready
RoHS
USB 3.0
T: USB1
B: USB2
Ps2
Keyboard/
Mouse
HDMI1
VGA1
DVI_CON1
USB 2.0
T: USB1
B: USB2
eSATA
Top:
RJ-45
USB 2.0
T: USB3
B: USB4
Top:
CTR BASS
Center:
REAR SPK
Bottom:
Optical
SPDIF
Top:
LINE IN
Center:
FRONT
Bottom:
MIC IN
Dual Graphics
Designed in Taipei
67
124
358
9
10
11
12
13
14
16
17
15
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
34
35
X Fast USB
1
USB3_3_4
PCIE2
X Fast RAM
X Fast LAN
SATA3_3
CI1
1
33
1 Power Fan Connector (PWR_FAN1)
2 ATX 12V Power Connector (ATX12V1)
3 CPU Heatsink Retention Module
4 CPU Socket
5 CPU Fan Connector (CPU_FAN1)
6 CPU Fan Connector (CPU_FAN2)
7 2 x 240-pin DDR3 DIMM Slots
(DDR3_A1, DDR3_B1, Black)
8 2 x 240-pin DDR3 DIMM Slots
(DDR3_A2, DDR3_B2, Black)
9 ATX Power Connector (ATXPWR1)
10 USB 3.0 Header (USB3_3_4, Black)
11 Southbridge Controller
12 Chassis Fan Connector (CHA_FAN1)
13 SPI Flash Memory (64Mb)
14 SATA3 Connector (SATA3_5, Grey)
15 SATA3 Connector (SATA3_4, Grey)
16 SATA3 Connector (SATA3_1, Grey)
17 SATA3 Connector (SATA3_2, Grey)
18 SATA3 Connector (SATA3_3, Grey)
19 Chassis Speaker Header (SPEAKER1)
20 Power LED Header (PLED1)
21 System Panel Header (PANEL1)
22 USB 2.0 Header (USB5_6, Black)
23 Clear CMOS Jumper (CLRCMOS1)
24 USB 2.0 Header (USB7_8, Black)
25 Consumer Infrared Module Header
(CIR1, Gray)
26 USB 2.0 Header (USB9_10, Black)
27 Print Port Header (LPT1)
28 COM Port Header (COM1)
29 Infrared Module Header (IR1)
30 Front Panel Audio Header (HD_AUDIO1)
31 PCI Slot (PCI1)
32 PCI Express 2.0 x16 Slot (PCIE3)
33 Chassis Intrusion Header (CI1)
34 PCI Express 2.0 x1 Slot (PCIE2)
35 PCI Express 2.0 x16 Slot (PCIE1)
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ASRock FM2A75 Pro4-M Motherboard
I/O Panel
1234
5
6
7
8
9
10
12
13
14
15 11
1 PS/2 Mouse/Keyboard Port
(Green/Purple)
2 D-Sub Port (VGA)
3 USB 2.0 Ports (USB_1_2)
* 4 LAN RJ-45 Port
5 Central / Bass (Orange)
6 Rear Speaker (Black)
7 Optical SPDIF Out Port
8 Line In (Light Blue)
** 9 Front Speaker (Lime)
10 Microphone (Pink)
11 USB 2.0 Ports (USB_3_4)
*** 12 eSATA3 Connector
13 HDMI Port
14 DVI-D Port
15 USB 3.0 Ports (USB3_1_2)
* There are two LEDs on each LAN port. Please refer to the table below for the LAN
port LED indications.
ACT/LINK
LED
SPEED
LED
LAN Port
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 100Mbps connection Green 1Gbps connection
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ASRock FM2A75 Pro4-M Motherboard
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 nd “Mixer”
tool on your system. Please select “Mixer ToolBox” , click “Enable play-
back multi-streaming”, and click “ok”.
Choose “2CH”, “4CH”, “6CH”, or “8CH” and then you are allowed to select “Realtek
HDA Primary 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.
** If you use a 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
(No. 9)
Rear Speaker
(No. 6)
Central / Bass
(No. 5)
Line In
(No. 8)
2 V -- -- --
4 V V -- --
6 V V V --
8 V V V V
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ASRock FM2A75 Pro4-M Motherboard
1. Introduction
Thank you for purchasing ASRock FM2A75 Pro4-M motherboard, a reli-
able 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 mother-
board and step-by-step hardware installation guide. Chapter 3 and 4 con-
tains the conguration guide of BIOS setup and information of the Support
CD.
Because the motherboard specications and the BIOS software
might be updated, the content of this manual will be subject to
change without notice. In case any modications of this manual
occur, the updated version will be available on ASRock’s web-
site without further notice. You may nd the latest VGA cards
and CPU support list on ASRock’s website as well. ASRock
website http://www.asrock.com
If you require technical support related to this motherboard,
please visit our website for specic information about the model
you are using.
www.asrock.com/support/index.asp
1.1 Package Contents
ASRock FM2A75 Pro4-M Motherboard
(Micro ATX Form Factor: 9.6-in x 9.6-in, 24.4 cm x 24.4 cm)
ASRock FM2A75 Pro4-M Quick Installation Guide
ASRock FM2A75 Pro4-M Support CD
2 x Serial ATA (SATA) Data Cables (Optional)
1 x I/O Panel Shield
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ASRock FM2A75 Pro4-M Motherboard
English
1.2 Specications
Platform - Micro ATX Form Factor: 9.6-in x 9.6-in, 24.4 cm x
24.4 cm
- All Solid Capacitor design
CPU - Support for Socket FM2 100W processors
- 4 + 2 Power Phase Design
- Supports AMD’s Cool ‘n’ QuietTM Technology
- UMI-Link GEN2
Chipset - AMD A75 FCH (Hudson-D3)
Memory - Dual Channel DDR3 Memory Technology
- 4 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: 64GB
(see CAUTION 2)
- Supports Intel® Extreme Memory Prole (XMP) 1.3 /
1.2
- Supports AMD Memory Prole (AMP)
Expansion Slot - 2 x PCI Express 2.0 x16 slots (PCIE1 @ x16 mode;
PCIE3 @ x4 mode)
- 1 x PCI Express 2.0 x1 slot
- 1 x PCI slot
- Supports AMD Quad CrossFireXTM, CrossFireXTM and
Dual Graphics
Graphics - AMD Radeon HD 7000 series graphics
- DirectX 11, Pixel Shader 5.0
- Max. shared memory 2GB
- Three VGA Output options: D-Sub, DVI-D and HDMI
- Supports HDMI 1.4a Technology with max. resolution
up to 1920x1200 @ 60Hz
- Supports Dual-link DVI with max. resolution up to
2560x1600 @ 75Hz
- Supports D-Sub with max. resolution up to 1920x
1600 @ 60Hz

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ASRock FM2A75 Pro4-M Motherboard
English
- Supports Auto Lip Sync, Deep Color (12bpc), xvYCC
and HBR (High Bit Rate Audio) with HDMI
(see CAUTION 3)
- Supports Blu-ray Stereoscopic 3D with HDMI 1.4a
- Supports AMD Steady VideoTM: New video post
processing capability for automatic jutter reduction on
home/online video
- Supports HDCP with DVI and HDMI ports
- Supports Full HD 1080p Blu-ray (BD) / HD-DVD
playback with DVI and HDMI ports
Audio - 7.1 CH HD Audio with Content Protection
(Realtek ALC892 Audio Codec)
- Premium Blu-ray audio support
LAN - PCIE x1 Gigabit LAN 10/100/1000 Mb/s
- Realtek RTL8111E
- Supports Wake-On-LAN
- Supports LAN Cable Detection
- Supports Energy Efcient Ethernet 802.3az
- Supports PXE
Rear Panel I/O I/O Panel
- 1 x PS/2 Mouse/Keyboard Port
- 1 x D-Sub Port
- 1 x DVI-D 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 - 5 x SATA3 6.0 Gb/s connectors, support RAID (RAID
0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug
USB 3.0 - 2 x Rear USB 3.0 ports, support USB 1.1/2.0/3.0 up
to 5Gb/s

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ASRock FM2A75 Pro4-M Motherboard
English
- 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 - 5 x SATA3 6.0Gb/s connectors
- 1 x IR header
- 1 x CIR header
- 1 x Print port header
- 1 x COM port header
- 1 x Power LED 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)
- 1 x Power Fan connector (3-pin)
- 24 pin ATX power connector
- 8 pin 12V power connector
- Front panel audio connector
- 3 x USB 2.0 headers (support 6 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, VDDP, VDDR, SB Voltage Multi-adjustment
Support CD - Drivers, Utilities, AntiVirus Software (Trial Version),
CyberLink MediaEspresso 6.5 Trial
Hardware - CPU Temperature Sensing
Monitor - Chassis Temperature Sensing
- CPU/Chassis/Power Fan Tachometer
- CPU/Chassis Quiet Fan
- CPU/Chassis Fan Multi-Speed Control
- CASE OPEN detection
- Voltage Monitoring: +12V, +5V, +3.3V, Vcore
OS - Microsoft® Windows® 7 / 7 64-bit / VistaTM / VistaTM
64-bit / XP SP3 compliant
Certications - FCC, CE, WHQL
- ErP/EuP Ready (ErP/EuP ready power supply is
required)

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ASRock FM2A75 Pro4-M Motherboard
English
* 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 compo-
nents 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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ASRock FM2A75 Pro4-M Motherboard
English
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 under Windows®7 / VistaTM / XP. 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 Win-
dows®7 64-bit / 7. Deep Color mode will be enabled only
if the display supports 12bpc in EDID. HBR is supported
under Windows®7 64-bit / 7 / VistaTM 64-bit / VistaTM.

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ASRock FM2A75 Pro4-M Motherboard
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 set-
tings as a profile and share it with your friends. Your
friends then can load the OC prole to their own system
to get the same OC settings. In IES (Intelligent Energy
Saver), the voltage regulator can reduce the number of
output phases to improve efciency when the CPU cores
are idle without sacrificing computing performance. In
XFast RAM, it fully utilizes the memory space that can-
not 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 efcient way
to save energy, time, money, and improves system run-
ning speed for your system. 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 specic 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 ash utility embedded
in Flash ROM. This convenient BIOS update tool allows
you to update system BIOS without entering operating
systems rst like MS-DOS or Windows®. With this utility,
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ASRock FM2A75 Pro4-M Motherboard
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 le to your USB ash drive, oppy disk or
hard drive, then you can update your BIOS only in a few
clicks without preparing an additional oppy diskette or
other complicated ash utility. Please be noted that the
USB ash drive or hard drive must use FAT32/16/12 le
system.
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 simul-
taneously and even supports continuous 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
marvelous charging experience.
ASRock XFast USB
ASRock XFast USB can boost USB storage device per-
formance. The performance may depend on the proper-
ties of the device.
ASRock XFast LAN
ASRock XFast LAN provides a faster internet access,
which includes the benets listed below. LAN Application
Prioritization: You can congure your application’s prior-
ity 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 simultaneously.
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ASRock FM2A75 Pro4-M Motherboard
Real-Time Analysis of Your Data: With the status win-
dow, 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 ASRock Extreme Tuning Utility (AXTU). It fully uti-
lizes the memory space that cannot be used under Win-
dows®OS 32-bit CPU. ASRock XFast RAM shortens the
loading time of previously visited websites, making web
surng faster than ever. And it also boosts the speed of
Adobe Photoshop 5 times faster. Another advantage of
ASRock XFast RAM is that it reduces the frequency of
accessing your SSDs or HDDs in order to extend their
lifespan.
ASRock Crashless BIOS
ASRock Crashless BIOS allows users to update their
BIOS without fear of failing. If power loss occurs during
the BIOS update 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 specied 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 required.
ASRock Internet Flash
ASRock Internet Flash searches for available UEFI rm-
ware updates from our servers. In other words, the sys-
tem can auto-detect the latest UEFI from our servers
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ASRock FM2A75 Pro4-M Motherboard
and ash 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 congura-
tions that users are currently using in their PC. With the
UEFI system browser, you can easily examine the cur-
rent system conguration 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 de-
vices, 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.
ASRock Dehumidier Function
Users may prevent motherboard damages due to damp-
ness by enabling “Dehumidifier Function”. When en-
abling Dehumidier Function, the computer will power on
automatically to dehumidify 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 de-
vice. 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 congura-
tion tools, cool sound effects and stunning visuals. The
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ASRock FM2A75 Pro4-M Motherboard
unprecedented UEFI provides a more attractive interface
and brings a lot more amusement.
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ASRock FM2A75 Pro4-M Motherboard
Chapter 2: Installation
This is a micro ATX form factor (9.6" x 9.6", 24.4 x 24.4 cm) motherboard.
Before you install the motherboard, study the conguration of your chassis
to ensure that the motherboard ts into it.
Pre-installation Precautions
Take note of the following precautions before you install motherboard com-
ponents or change any motherboard settings.
1. Make sure to unplug the power cord before installing or
removing the motherboard. Failure to do so may cause
physical injuries to you and damages to motherboard com-
ponents.
2. In order to avoid damage from static electricity to the moth-
erboard’s components, 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.
3. Hold components by the edges and do not touch the ICs.
4. Whenever you uninstall any components, place them on a
grounded anti-static pad or in the bag that comes with the
components.
5. When placing screws to secure the motherboard to the
chassis, please do not over-tighten the screws! Doing so
may damage the motherboard.
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ASRock FM2A75 Pro4-M Motherboard
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 so that the CPU corner
with the golden triangle matches the small triangle on the socket’s
corner.
Step 3. Carefully insert the CPU into the socket until it ts in place.
The CPU ts 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 rmly 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 compatible heatsink and cooling fan to dissipate heat.
You also need to spray thermal grease between the CPU and
the heatsink to improve heat dissipation. Make sure that the
CPU and the heatsink are securely fastened and in good con-
tact with each other. Then connect the CPU fan to the CPU FAN
connector (CPU_FAN1, see Page 2, No. 5 or CPU_FAN2, see
Page 2, No. 6). For proper installation, please kindly refer to the
instruction manual of the CPU fan and the heatsink.
STEP 1:
Lift Up The Socket Lever
STEP 2 / STEP 3:
Match The CPU’s Golden
Triangle To The Small
Triangle on the Socket’s
Corner
STEP 4:
Push Down And Lock
The Socket Lever
CPU Golden Triangle
Lever 90° Up
Socket Corner Small
Triangle
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ASRock FM2A75 Pro4-M Motherboard
2.3 Installation of Memory Modules (DIMM)
This motherboard provides four 240-pin DDR3 (Double Data Rate 3)
DIMM slots, and supports Dual Channel Memory Technology. For dual
channel conguration, you always need to install identical (the same
brand, speed, size and chip-type) DDR3 DIMM pairs. In other words,
you have to install identical DDR3 DIMM pairs in Dual Channel A
(DDR3_A1 and DDR3_B1, see p.2 No. 7) or identical DDR3 DIMM
pairs in Dual Channel B (DDR3_A2 and DDR3_B2, see p.2 No. 8), so
that Dual Channel Memory Technology can be activated. This moth-
erboard also allows you to install four DDR3 DIMMs for dual channel
conguration, please install identical DDR3 DIMMs in all four slots.
You may refer to the Dual Channel Memory Conguration Table below.
Dual Channel Memory Congurations
DDR3_A1
(Blue Slot)
DDR3_A2
(White Slot)
DDR3_B1
(Blue Slot)
DDR3_B2
(White Slot)
(1) Populated - Populated -
(2) - Populated - Populated
(3) Populated Populated Populated Populated
* For conguration (3), please install identical DDR3 DIMMs in all four
slots.
1. If you want to install two memory modules, for optimal com-
patibility and reliability, it is recommended to install them in
DDR3_A1 and DDR3_B1 or in DDR3_A2 and DDR3_B2.
2. If only one memory module or three memory modules are
installed in the DDR3 DIMM slots on this motherboard, it is
unable to activate the Dual Channel Memory Technology.
3. If a pair of memory modules is NOT installed in the same
Dual Channel, for example, installing a pair of memory
modules in DDR3_A1 and DDR3_A2, it is unable to acti-
vate Dual Channel Memory Technology.
4. It is not allowed to install a DDR or DDR2 memory module
into a DDR3 slot; otherwise, this motherboard and DIMM
may be damaged.
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ASRock FM2A75 Pro4-M Motherboard
Installing a DIMM
Please make sure to disconnect the power supply before add-
ing or removing DIMMs or 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 ts in one correct orientation. It will cause per-
manent 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.
5. If you adopt DDR3 2600/2400/2133/1866/1600 memory
modules on this motherboard, it is recommended to install
them on DDR3_A2 and DDR3_B2 slots.
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ASRock FM2A75 Pro4-M Motherboard
2.4 Expansion Slots (PCI and PCI Express Slots)
There is 1 PCI slot and 3 PCI Express slots on this motherboard.
PCI Slot: The PCI slot is used to install expansion cards that have 32-bit
PCI interface.
PCIE Slots: PCIE1 (PCIE x16 slot) is used for PCI Express x16 lane width
graphics cards, or used to install PCI Express graphics cards to
support CrossFireXTM function.
PCIE2 (PCIE x1 slot) is used for PCI Express cards with x1 lane
width. Such as Gigabit LAN card or SATA2 cards, etc.
PCIE3 (PCIE x16 slot) is used for PCI Express x4 lane width
cards, or used to install PCI Express graphics cards to support
CrossFireXTM function.
1. In single VGA card mode, it is recommended to install a
PCI Express x16 graphics card on PCIE1 slot.
2. In CrossFireXTM mode, please install PCI Express x16
graphics cards on PCIE1 and PCIE3 slots.
Installing an expansion card
Step 1. Before installing the expansion card, please make sure that the
power supply is switched off and 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 rmly 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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