ASROCK B85M Pro3 User manual

Version 1.0
Published May 2014
Copyright©2014 ASRock INC. All rights reserved.
Copyright Notice:
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 identication or explanation and to the owners’ benet, without intent to
infringe.
Disclaimer:
Specications 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, o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 possibility of such damages arising from any
defect or error in the documentation or product.
e terms HDMITM and HDMI High-Denition 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 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

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Motherboard Layout
7
8
9
10
11
12
4
6
5
Intel
B85
DDR3_A2 (64 bit, 240-pin module)
DDR3_A1 (64 bit, 240-pin module) DDR3_B2 (64 bit, 240-pin module)
DDR3_B1 (64 bit, 240-pin module)
CMOS
Battery
Supe r
I/O
ATXPWR1
1
USB3_2_3
LAN
Top:
RJ-45
USB 2.0
T: USB2
B: USB3
Top:
LINE IN
Center:
FRONT
Bottom:
MIC IN
CLRC MOS1
1
1
SPE AK ER1
HDL ED RE SE T
PLE D PWR BTN
PANE L1
1
USB4 _5
1
1
HD_AUDIO1
B85M Pro3
SATA_ 3
CHA_FAN1
RoHS
14
16 13
17
19
20
21
18
15
2
CPU_ FAN 1
3
1
32Mb
BIOS
HDMI1
VGA1
DVI1
USB 2.0
T: USB0
B: USB1
Audio
CODEC
PCIE1
PCI Express 3.0
Front USB 3.0
1
TPMS1
1
CI1
SATA_ 1
SATA_ 2 SATA_0
ATX12 V1
USB6 _7
1
SATA_ 5 SATA_4
PCIE2
PCIE3
PS2
Keyboard
PS2
Mouse
USB 3.0
T: USB0
B: USB1

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No. Description
1 ATX 12V Power Connector (ATX12V1)
2 2 x 240-pin DDR3 DIMM Slots (DDR3_A1, DDR3_B1)
3 2 x 240-pin DDR3 DIMM Slots (DDR3_A2, DDR3_B2)
4 ATX Power Connector (ATXPWR1)
5 USB 3.0 Header (USB3_2_3)
6 SATA3 Connector (SATA_1)
7 SATA3 Connector (SATA_0)
8 SATA3 Connector (SATA_2)
9 SATA3 Connector (SATA_3)
10 Chassis Speaker Header (SPEAKER1)
11 System Panel Header (PANEL1)
12 Chassis Fan Connector (CHA_FAN1)
13 SATA2 Connector (SATA_4)
14 SATA2 Connector (SATA_5)
15 Chassis Intrusion Header (CI1)
16 USB 2.0 Header (USB6_7)
17 USB 2.0 Header (USB4_5)
18 TPM Header (TPMS1)
19 Front Panel Audio Header (HD_AUDIO1)
20 CPU Fan Connector (CPU_FAN1)
21 Clear CMOS Jumper (CLRCMOS1)

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I/O Panel
No. Description No. Description
1 PS/2 Mouse Port 7 USB 2.0 Ports (USB23)
2 D-Sub Port 8 USB 3.0 Ports (USB3_01)
3 LAN RJ-45 Port* 9 USB 2.0 Ports (USB01)
4 Line In (Light Blue) 10 HDMI Port
5 Front Speaker (Lime) 11 DVI-D Port
6 Microphone (Pink) 12 PS/2 Keyboard Port
1 2 3 5
6789101112
4
* ere are two LEDs on each LAN port. Please refer to the table below for the LAN port LED indications.
Activity / Link LED Speed LED
Status Description Status Description
O No Link O 10Mbps connection
Blinking Data Activity Orange 100Mbps connection
On Link Green 1Gbps connection
ACT/LINK LED
SPEED LED
LAN Port

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Chapter 1 Introduction
ank you for purchasing ASRock B85M Pro3 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.
1.1 Package Contents
• ASRock B85M Pro3 Motherboard (Micro ATX Form Factor)
• ASRock B85M Pro3 Quick Installation Guide
• ASRock B85M Pro3 Support CD
• 2 x Serial ATA (SATA) Data Cables (Optional)
• 1 x I/O Panel Shield
Because the motherboard specications and the BIOS soware might be updated, the
content of this documentation will be subject to change without notice. In case any
modications of this documentation occur, the updated version will be available on
ASRock’s website without further notice. If you require technical support related to
this motherboard, please visit our website for specic information about the model
you are using. You may nd the latest VGA cards and CPU support list on ASRock’s
website as well. ASRock website http://www.asrock.com.

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1.2 Specications
Platform • Micro ATX Form Factor
• All Solid Capacitor design
• High Density Glass Fabric PCB
CPU • Supports New 4th and 4th Generation Intel® CoreTM i7/i5/i3/
Xeon®/Pentium®/Celeron® Processors (Socket 1150)
• Supports Intel® Turbo Boost 2.0 Technology
Chipset • Intel® B85
Memory • Dual Channel DDR3 Memory Technology
• 4 x DDR3 DIMM Slots
• Supports DDR3 1600/1333/1066 non-ECC, un-buered
memory
• Max. capacity of system memory: 32GB (see CAUTION)
• Supports Intel® Extreme Memory Prole (XMP) 1.3 / 1.2
Expansion
Slot
• 1 x PCI Express 3.0 x16 Slot (PCIE1: x16 mode)
• 2 x PCI Express 2.0 x1 Slots
Graphics • Intel® HD Graphics Built-in Visuals and the VGA outputs can
be supported only with processors which are GPU integrated.
• Supports Intel® HD Graphics Built-in Visuals : Intel® Quick
Sync Video with AVC, MVC (S3D) and MPEG-2 Full
HW Encode1, Intel® InTruTM 3D, Intel® Clear Video HD
Technology, Intel® InsiderTM, Intel® HD Graphics 4400/4600
• Pixel Shader 5.0, DirectX 11.1
• Max. shared memory 1792MB
• ree graphics output options: D-Sub, DVI-D and HDMI
Ports
• Supports Triple Monitor
• Supports HDMI with max. resolution up to 1920x1200 @
60Hz
• Supports DVI-D with max. resolution up to 1920x1200 @
60Hz
• Supports D-Sub with max. resolution up to 1920x1200 @
60Hz

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• Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and
HBR (High Bit Rate Audio) with HDMI Port (Compliant
HDMI monitor is required)
• Supports HDCP with DVI-D and HDMI Ports
• Supports Full HD 1080p Blu-ray (BD) playback with DVI-D
and HDMI Ports
Audio • 5.1 CH HD Audio (Realtek ALC662 Audio Codec)
• Supports Surge Protection (ASRock Full Spike Protection)
LAN • PCIE x1 Gigabit LAN 10/100/1000 Mb/s
• Realtek RTL8111GR
• Supports Wake-On-WAN
• Supports Wake-On-LAN
• Supports Lightning/ESD Protection (ASRock Full Spike
Protection)
• Supports LAN Cable Detection
• Supports Energy Ecient Ethernet 802.3az
• Supports PXE
Rear Panel
I/O
• 1 x PS/2 Mouse Port
• 1 x PS/2 Keyboard Port
• 1 x D-Sub Port
• 1 x DVI-D Port
• 1 x HDMI Port
• 4 x USB 2.0 Ports (Supports ESD Protection (ASRock Full
Spike Protection))
• 2 x USB 3.0 Ports (Supports ESD Protection (ASRock Full
Spike Protection))
• 1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED
LED)
• HD Audio Jacks: Line in / Front Speaker / Microphone
Storage • 4 x SATA3 6.0 Gb/s Connectors, support NCQ, AHCI and
Hot Plug
• 2 x SATA2 3.0 Gb/s Connectors, support NCQ, AHCI and
Hot Plug

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Connector • 1 x Chassis Intrusion Header
• 1 x TPM Header
• 1 x CPU Fan Connector (4-pin)
• 1 x Chassis Fan Connector (4-pin)
• 1 x 24 pin ATX Power Connector
• 1 x 4 pin 12V Power Connector
• 1 x Front Panel Audio Connector
• 2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD
Protection (ASRock Full Spike Protection))
• 1 x USB 3.0 Header (Supports 2 USB 3.0 ports) (Supports ESD
Protection (ASRock Full Spike Protection))
BIOS
Feature
• 32Mb AMI UEFI Legal BIOS with multilingual GUI support
• ACPI 1.1 Compliant wake up events
• SMBIOS 2.3.1 support
• CPU, DRAM, PCH 1.05V, PCH 1.5V Voltage multi-adjust-
ment
Hardware
Monitor
• CPU/Chassis temperature sensing
• CPU/Chassis Fan Tachometer
• CPU/Chassis Quiet Fan (Auto adjust chassis fan speed by
CPU temperature)
• CPU/Chassis Fan multi-speed control
• CASE OPEN detection
• Voltage monitoring: +12V, +5V, +3.3V, CPU Vcore
OS • Microso® Windows® 8.1 32-bit / 8.1 64-bit / 8 32-bit / 8 64-
bit / 7 32-bit / 7 64-bit
Certica-
tions
• 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

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Please realize that there is a certain risk involved with overclocking, including adjust-
ing the setting in the BIOS, applying Untied Overclocking Technology, or using third-
party overclocking tools. Overclocking may aect 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.
Due to limitation, the actual memory size may be less than 4GB for the reservation
for system usage under Windows® 32-bit operating systems. Windows® 64-bit operat-
ing systems do not have such limitations. You can use ASRock XFast RAM to utilize
the memory that Windows® cannot use.

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is is a Micro ATX form factor 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 components
or change any motherboard settings.
• Make sure to unplug the power cord before installing or removing the motherboard
components. Failure to do so may cause physical injuries and damages to motherboard
components.
• In order to avoid damage from static electricity to the motherboard’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.
• Hold components by the edges and do not touch the ICs.
• Whenever you uninstall any components, place them on a grounded anti-static pad or
in the bag that comes with the components.
• When placing screws to secure the motherboard to the chassis, please do not over-
tighten the screws! Doing so may damage the motherboard.
Chapter 2 Installation

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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 is on
the socket, if the CPU surface is unclean, or if there are any bent pins in the socket.
Do not force to insert the CPU into the socket if above situation is found. Otherwise,
the CPU will be seriously damaged.
2. Unplug all power cables before installing the CPU.
2
1
A
B

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4
5
3

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Please save and replace the cover if the processor is removed. e cover must be placed
if you wish to return the motherboard for aer service.

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2.2 Installing the CPU Fan and Heatsink
1 2
CPU_FAN

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2.3 Installing Memory Modules (DIMM)
is motherboard provides four 240-pin DDR3 (Double Data Rate 3) DIMM slots,
and supports Dual Channel Memory Technology.
Dual Channel Memory Conguration
e DIMM only ts 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.
Priority DDR3_A1 DDR3_A2 DDR3_B1 DDR3_B2
1Populated Populated
2Populated Populated
3Populated Populated Populated Populated
1. For dual channel conguration, you always need to install identical (the same
brand, speed, size and chip-type) DDR3 DIMM pairs.
2. It is unable to activate Dual Channel Memory Technology with only one or three
memory module installed.
3. 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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1
2
3

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2.4 Expansion Slots (PCI Express Slots)
ere are 3 PCI Express slots on the motherboard.
PCIe slots:
PCIE1 (PCIe 3.0 x16 slot) is used for PCI Express x16 lane width graphics cards.
PCIE2 (PCIe 2.0 x1 slot) is used for PCI Express x1 lane width cards.
PCIE3 (PCIe 2.0 x1 slot) is used for PCI Express x1 lane width cards.
1. Before installing an expansion card, please make sure that the power supply is
switched o 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.
2. Due to the mechanical limitation, to install/uninstall the graphics card on PCIE1
slot, please nd a thin tool, such as a pen to press the retaining clip to lock/unlock
the PCIe slot.

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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.1, No. 21)
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. Aer 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 aer 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 prole 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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2.6 Onboard Headers and Connectors
System Panel Header
(9-pin PANEL1)
(see p.1, No. 11)
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.
GND
RESET#
PWRBTN#
PLED-
PLED+
GND
HDLED-
HDLED+
1
GND
PWRBTN (Power Switch):
Connect to the power switch on the chassis front panel. You may congure the way to
turn o 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 perform a normal restart.
PLED (System Power LED):
Connect to the power status indicator on the chassis front panel. e LED is on when
the system is operating. e LED keeps blinking when the system is in S1/S3 sleep state.
e LED is o when the system is in S4 sleep state or powered o (S5).
HDLED (Hard Drive Activity LED):
Connect to the hard drive activity LED on the chassis front panel. e LED is on when
the hard drive is reading or writing data.
e front panel design may dier by chassis. A front panel module mainly consists
of power switch, reset switch, power LED, hard drive activity LED, speaker and etc.
When connecting your chassis front panel module to this header, make sure the wire
assignments and the pin assignments are matched correctly.
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 to the motherboard.