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Version 1.0
Published November 2016
Copyright©2016 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 identification or explanation and to the owners’ benefit, without intent to
infringe.
Disclaimer:
Specifications 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 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 possibility of such damages arising from any defect or error in the documentation 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
AUSTRALIA ONLY
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage caused by our goods. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure. If you require assistance please call ASRock Tel
: +886-2-28965588 ext.123 (Standard International call charges apply)
The terms HDMI™ and HDMI High-Definition Multimedia Interface, and the HDMI logo are trademarks or registered trademarks of HDMI Licensing LLC in the United States and other countries.
Contents
Chapter 1 Introduction |
1 |
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1.1 |
Package Contents |
1 |
1.2 |
Specifications |
2 |
1.3 |
Motherboard Layout |
7 |
1.4 |
I/O Panel |
9 |
Chapter 2 Installation |
11 |
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2.1 |
Installing the CPU |
12 |
2.2 |
Installing the CPU Fan and Heatsink |
15 |
2.3 |
Installing Memory Modules (DIMM) |
16 |
2.4 |
Expansion Slots (PCI and PCI Express Slots) |
18 |
2.5 |
Jumpers Setup |
19 |
2.6 |
Onboard Headers and Connectors |
20 |
2.7 |
CrossFireXTM and Quad CrossFireXTM Operation Guide |
25 |
2.7.1 |
Installing Two CrossFireXTM-Ready Graphics Cards |
25 |
2.7.2 |
Driver Installation and Setup |
27 |
2.8 |
M.2_SSD (NGFF) Module Installation Guide |
28 |
Chapter 3 Software and Utilities Operation |
31 |
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3.1 |
Installing Drivers |
31 |
3.2 |
A-Tuning |
32 |
3.2.1 |
Installing A-Tuning |
32 |
3.2.2 |
Using A-Tuning |
32 |
3.3 |
ASRock Live Update & APP Shop |
35 |
3.3.1 |
UI Overview |
35 |
3.3.2 |
Apps |
36 |
3.3.3 |
BIOS & Drivers |
39 |
3.3.4 |
Setting |
40 |
3.4 |
Enabling USB Ports for Windows® 7 Installation |
41 |
Chapter 4 UEFI SETUP UTILITY |
44 |
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4.1 |
Introduction |
44 |
4.2 |
EZ Mode |
45 |
4.3 |
Advanced Mode |
46 |
4.3.1 |
UEFI Menu Bar |
46 |
4.3.2 |
Navigation Keys |
47 |
4.4 |
Main Screen |
48 |
4.5 |
OC Tweaker Screen |
49 |
4.6 |
Advanced Screen |
56 |
4.6.1 |
CPU Configuration |
57 |
4.6.2 |
Chipset Configuration |
59 |
4.6.3 |
Storage Configuration |
62 |
4.6.4 |
Intel® Thunderbolt |
63 |
4.6.5 |
Super IO Configuration |
64 |
4.6.6 |
ACPI Configuration |
65 |
4.6.7 |
USB Configuration |
67 |
4.6.8 |
Trusted Computing |
68 |
4.7 |
Tools |
69 |
4.8 |
Hardware Health Event Monitoring Screen |
72 |
4.9 |
Security Screen |
75 |
4.10 |
Boot Screen |
76 |
4.11 |
Exit Screen |
79 |
B250 Pro4
Chapter 1 Introduction
Thank you for purchasing ASRock B250 Pro4 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 documentation, Chapter 1 and 2 contains the introduction of the motherboard and step-by-step installation guides. Chapter 3 contains the operation guide of the software and utilities. Chapter 4 contains the configuration guide of the BIOS setup.
Because the motherboard specifications and the BIOS software might be updated, the content of this documentation will be subject to change without notice. In case any modifications 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 specific information about the model you are using. You may find the latest VGA cards and CPU support list on ASRock’s website as well. ASRock website http://www.asrock.com.
1.1 Package Contents
•ASRock B250 Pro4 Motherboard (ATX Form Factor)
•ASRock B250 Pro4 Quick Installation Guide
•ASRock B250 Pro4 Support CD
•2 x Serial ATA (SATA) Data Cables (Optional)
•1 x I/O Panel Shield
•3 x Screws for M.2 Socket (Optional)
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1
1.2 Specifications
Platform |
• |
ATX Form Factor |
CPU |
• |
Supports 7th and 6th Generation Intel® CoreTM i7/i5/i3/ |
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Pentium®/Celeron® Processors (Socket 1151) |
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Digi Power design |
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• 8 Power Phase design |
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• Supports Intel® Turbo Boost 2.0 Technology |
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Chipset |
• |
Intel® B250 |
Memory |
• |
Dual Channel DDR4 Memory Technology |
•4 x DDR4 DIMM Slots
•Supports DDR4 2400/2133 non-ECC, un-buffered memory*
*7th Gen Intel® CPU supports DDR4 up to 2400; 6th Gen Intel® CPU supports DDR4 up to 2133.
•Supports ECC UDIMM memory modules (operate in nonECC mode)
•Max. capacity of system memory: 64GB
•Supports Intel® Extreme Memory Profile (XMP) 2.0
•15μ Gold Contact in DIMM Slots
Expansion |
• 2 x PCI Express 3.0 x16 Slots (PCIE2: x16 mode; PCIE4: x4 |
Slot |
mode)* |
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* Supports NVMe SSD as boot disks |
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* If PCIE5 slot or PCI slot is occupied, PCIE4 slot will run at x2 |
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mode. |
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• 3 x PCI Express 3.0 x1 Slots (Flexible PCIe) |
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• 1 x PCI Slot |
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• Supports AMD Quad CrossFireXTM and CrossFireXTM |
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• 1 x M.2 Socket (Key E), supports type 2230 WiFi/BT |
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module** |
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** M.2 Socket (Key E) and PCIE3 slot share lanes. If either one |
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of them is in use, the other one will be disabled. |
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B250 Pro4
Graphics |
• Intel® HD Graphics Built-in Visuals and the VGA outputs |
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can be supported only with processors which are GPU |
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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
•Gen9 LP, DX11.3, DX12
•HWAEncode/Decode: VP8, HEVC 8b, VP9, HEVC 10b (For 7th Gen Intel® CPU)
•HWA Encode/Decode: VP8 , HEVC 8b; GPU/SWEncode/ Decode: VP9, HEVC 10b (For 6th Gen Intel® CPU)
•Max. shared memory 1024MB
*The size of maximum shared memory may vary from different operating systems.
•Three graphics output options: D-Sub, DVI-D and HDMI
•Supports Triple Monitor
•Supports HDMI with max. resolution up to 4K x 2K (4096x2160) @ 24Hz / (3840x2160) @ 30Hz
•Supports DVI-D with max. resolution up to 1920x1200 @ 60Hz
•Supports D-Sub with max. resolution up to 1920x1200 @ 60Hz
•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 |
• 7.1 CH HD Audio with Content Protection (Realtek ALC892 |
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Audio Codec) |
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* To configure 7.1 CH HD Audio, it is required to use an HD |
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front panel audio module and enable the multi-channel audio |
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feature through the audio driver. |
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• Premium Blu-ray Audio support |
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• Supports Surge Protection (ASRock Full Spike Protection) |
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• ELNA Audio Caps |
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English
LAN |
• |
Gigabit LAN 10/100/1000 Mb/s |
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• Giga PHY Intel® I219V |
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• Supports Wake-On-LAN |
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• Supports Lightning/ESD Protection (ASRock Full Spike |
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Protection) |
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• Supports Energy Efficient Ethernet 802.3az |
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Supports PXE |
Rear Panel |
• |
2 x Antenna Ports |
I/O |
• |
1 x PS/2 Mouse/Keyboard Port |
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• 1 x D-Sub Port |
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• 1 x DVI-D Port |
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• 1 x HDMI Port |
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• 1 x USB 2.0 Port (Supports ESD Protection (ASRock Full |
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Spike Protection)) |
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• 3 x USB 3.0 Type-A Ports (Supports ESD Protection (ASRock |
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Full Spike Protection)) |
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• 1 x USB 3.0 Type-C Port (Supports ESD Protection (ASRock |
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Full Spike Protection)) |
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• 1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED |
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LED) |
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• HD Audio Jacks: Line in / Front Speaker / Microphone |
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Storage |
• |
6 x SATA3 6.0 Gb/s Connectors, support NCQ, AHCI and |
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Hot Plug* |
*If M2_1 is occupied by a SATA-type M.2 device, SATA3_5 will be disabled.
*If M2_2 is occupied by a SATA-type M.2 device, SATA3_0 will be disabled.
•1 x Ultra M.2 Socket (M2_1), supports type 2230/2242/2260/2280 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen3 x4 (32 Gb/s)**
•1 x M.2 Socket (M2_2), supports type 2230/2242/2260/2280 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen3 x2 (16 Gb/s)**
**Supports Intel® OptaneTM Technology
**Supports NVMe SSD as boot disks
**Supports ASRock U.2 Kit
4
B250 Pro4
Connector |
• 1 x COM Port Header |
•1 x TPM Header
•1 x Chassis Intrusion Header
•1 x Power LED and Speaker Header
•1 x CPU Fan Connector (4-pin)
*The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power.
•2 x Chassis Fan Connectors (4-pin) (Smart Fan Speed Control)
•1 x Chassis Optional/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control)
*The Chassis Optional/Water Pump Fan supports the water cooler fan of maximum 1.5A (18W) fan power.
*CHA_FAN2 can auto detect if 3-pin or 4-pin fan is in use.
•1 x 24 pin ATX Power Connector
•1 x 8 pin 12V Power Connector
•1 x Front Panel Audio Connector
•1 x Thunderbolt AIC Connector (5-pin)
•1 x Thunderbolt AIC Connector (10-pin)
*Only one Thunderbolt AIC Card is supported.
•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 |
• |
AMI UEFI Legal BIOS with multilingual GUI support |
Feature |
• |
ACPI 6.0 Compliant wake up events |
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• |
SMBIOS 2.7 Support |
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• CPU, GT_CPU, DRAM, VPP, PCH 1.0V, VCCIO, VCCST, |
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VCCSA, VCCPLL Voltage Multi-adjustment |
Hardware |
• |
CPU / Chassis / Chassis Optional/Water Pump temperature |
Monitor |
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sensing |
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• CPU / Chassis / Chassis Optional/Water Pump Fan Tachom- |
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eter |
• CPU / Chassis / Chassis Optional/Water Pump Quiet Fan (Auto adjust chassis fan speed by CPU temperature)
English
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• CPU / Chassis / Chassis Optional/Water Pump Fan multi- |
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speed control |
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• |
CASE OPEN detection |
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• Voltage monitoring: +12V, +5V, +3.3V, CPU Vcore, DRAM, |
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VPP, PCH 1.0V, VCCIO, VCCSA, VCCST |
OS |
• |
Microsoft® Windows® 10 64-bit (For 7th Gen Intel® CPU) |
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• Microsoft® Windows® 10 64-bit / 8.1 64-bit / 7 32-bit / 7 64- |
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bit (For 6th Gen Intel® CPU) |
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* To install Windows® 7 OS, a modified installation disk with |
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xHCI drivers packed into the ISO file is required. Please refer to |
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page 41 for more detailed instructions. |
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* For the updated Windows® 10 driver, please visit ASRock’s |
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website for details: http://www.asrock.com |
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Certifica- |
• |
FCC, CE, WHQL, RCM, BSMI |
tions |
• |
ErP/EuP ready (ErP/EuP ready power supply is required) |
* For detailed product information, please visit our website: http://www.asrock.com
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.
English
6
B250 Pro4
1.3 Motherboard Layout
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US:B2 |
USBT:1 USB30. |
/Mouse |
Keyboard |
PS2 |
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CPU_FAN1 |
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ATX12V1 |
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DVI1 |
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VGA1 |
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HDMI1 |
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module) |
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USB2 |
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(64A1DDR4bit,288-pin |
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ATXPWR1 |
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USB30. |
USB1 USB20. |
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USB3 |
3 . US B |
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_1 |
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RJ-45 |
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CHA_FAN2 |
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INMIC |
Bottom: |
FRONT |
Center: |
LINE Top: |
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M23 |
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Ultra M.2 |
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7 |
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NUT1 |
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PCIe Gen3 x4 |
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B250 Pro4 |
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USB3 |
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PCIE1 |
Ct1 |
Ct2 |
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Ct4 |
M2_ |
Front USB 3.0 |
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PCI Express 3.0 |
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SATA |
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PCIE2 |
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SATA |
SATA |
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Intel |
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CMOS |
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Battery |
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B250 |
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SATA |
SATA |
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PCIE3 |
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PCIE4 |
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TB1 |
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PCIE5 |
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M2 |
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Ct5 |
Ct6 |
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PCI1 |
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BIOS |
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COM1 |
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USB_5_6 |
USB_3_4 |
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ROM |
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HD_AUDIO1 |
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TPMS1 |
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CHA_FAN1 |
SPK_PLED1 |
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PLED PWRBTN |
English |
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CI1 |
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PANEL1 |
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HDLED RESET |
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7
No. Description
1ATX 12V Power Connector (ATX12V1)
2Chassis Fan Connector (CHA_FAN2)
32 x 288-pin DDR4 DIMM Slots (DDR4_A1, DDR4_B1)
42 x 288-pin DDR4 DIMM Slots (DDR4_A2, DDR4_B2)
5CPU Fan Connector (CPU_FAN1)
6ATX Power Connector (ATXPWR1)
7USB 3.0 Header (USB3_3_4)
8SATA3 Connector (SATA3_5)
9SATA3 Connector (SATA3_4) 10 SATA3 Connector (SATA3_3) 11 SATA3 Connector (SATA3_2) 12 SATA3 Connector (SATA3_1) 13 SATA3 Connector (SATA3_0)
14 System Panel Header (PANEL1)
15 Power LED and Speaker Header (SPK_PLED1)
16 Chassis Fan / Waterpump Fan Connector (CHA_FAN3/W_PUMP) 17 Chassis Fan Connector (CHA_FAN1)
18 USB 2.0 Header (USB_3_4)
19 USB 2.0 Header (USB_5_6)
20 Clear CMOS Jumper (CLRMOS1)
21 Chassis Intrusion Header (CI1)
22 TPM Header (TPMS1)
23 COM Port Header (COM1)
24 Front Panel Audio Header (HD_AUDIO1)
25 Thunderbolt AIC Connector (TB2)
26 Thunderbolt AIC Header (TB1)
English
8
B250 Pro4
1.4 I/O Panel
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13 12 11 10 9 8 7
No. |
Description |
No. |
Description |
1 |
PS/2 Mouse/Keyboard Port |
8 |
USB 3.0 Port (USB_2) |
2 |
D-Sub Port |
9 |
USB 3.0 Type-C Port (USB3_TC_1) |
3 |
LAN RJ-45 Port* |
10 |
HDMI Port |
4 |
USB 2.0 Port (USB_1) |
11 |
DVI-D Port |
5 |
Line In (Light Blue)** |
12 |
USB 3.0 Ports (USB3_1_2) |
6 |
Front Speaker (Lime)** |
13 |
Antenna Ports |
7Microphone (Pink)**
*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 |
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Activity / Link LED |
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Speed LED |
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Status |
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Description |
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Status |
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Description |
Off |
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No Link |
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Off |
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10Mbps connection |
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Blinking |
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Data Activity |
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Orange |
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100Mbps connection |
On |
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Link |
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Green |
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1Gbps connection |
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English
9
** To configure 7.1 CH HD Audio, it is required to use an HD front panel audio module and enable the multichannel audio feature through the audio driver.
Please set Speaker Configuration to “7.1 Speaker”in the Realtek HD Audio Manager.
Function of the Audio Ports in 7.1-channel Configuration:
Port |
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Function |
Light Blue (Rear panel) |
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Rear Speaker Out |
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Lime (Rear panel) |
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Front Speaker Out |
Pink (Rear panel) |
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Central /Subwoofer Speaker Out |
Lime (Front panel) |
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Side Speaker Out |
English
10
B250 Pro4
Chapter 2 Installation
This is an ATX 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.
•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 overtighten the screws! Doing so may damage the motherboard.
English
11
2.1Installing the CPU
1.Before you insert the 1151-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.
1
A
B
2
English
12
B250 Pro4
3 |
4 |
5
English
13
Please save and replace the cover if the processor is removed. The cover must be placed if you wish to return the motherboard for after service.
English
14
B250 Pro4
2.2 Installing the CPU Fan and Heatsink
1 |
2 |
N _FA PU C
English
15
2.3 Installing Memory Modules (DIMM)
This motherboard provides four 288-pin DDR4 (Double Data Rate 4) DIMM slots, and supports Dual Channel Memory Technology.
1.For dual channel configuration, you always need to install identical (the same brand, speed, size and chip-type) DDR4 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, DDR2 or DDR3 memory module into a DDR4 slot; otherwise, this motherboard and DIMM may be damaged.
Dual Channel Memory Configuration
Priority |
DDR4_A1 |
DDR4_A2 |
DDR4_B1 |
DDR4_B2 |
1 |
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Populated |
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Populated |
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2 |
Populated |
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Populated |
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3 |
Populated |
Populated |
Populated |
Populated |
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.
English
16
B250 Pro4
1
2
3
English
17
2.4 Expansion Slots (PCI and PCI Express Slots)
There is I PCI slot and 5 PCI Express slots on the motherboard.
Before installing an 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.
PCI slot:
The PCI1 is used to install expansion cards that have 32-bit PCI interface.
PCIe slots:
PCIE1 (PCIe 3.0 x1 slot) is used for PCI Express x1 lane width cards.
PCIE2 (PCIe 3.0 x16 slot) is used for PCI Express x16 lane width graphics cards. PCIE3 (PCIe 3.0 x1 slot) is used for PCI Express x1 lane width cards.
PCIE4 (PCIe 3.0 x16 slot) is used for PCI Express x4 lane width graphics cards. PCIE5 (PCIe 3.0 x1 slot) is used for PCI Express x1 lane width cards.
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PCIE2 |
PCIE4 |
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PCIe Slot Configurations |
x16 |
N/A |
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Single Graphics Card |
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Two Graphics Cards in |
x16 |
x4 |
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CrossFireXTM Mode |
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For a better thermal environment, please connect a chassis fan to the motherboard’s chassis fan connector (CHA_FAN1, CHA_FAN2 or CHA_FAN3) when using multiple graphics cards.
English
18
B250 Pro4
2.5 Jumpers Setup
The 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”. The 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 |
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(CLRMOS1) |
Default |
Clear CMOS |
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(see p.7, No. 20) |
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CLRMOS1 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 CLRMOS1 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 action. Please be noted that the password, date, time, and user default profile will be cleared only if the CMOS battery is removed.
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.
English
19
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 to the motherboard.
System Panel Header
(9-pin PANEL1)
(see p.7, No. 14)
PLED+ PLED-
PWRBTN#
GND
1
GND RESET#
GND HDLED-
HDLED+
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 configure 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 perform a normal restart.
PLED (System Power LED):
Connect to the power status indicator on the chassis front panel. The LED is on when the system is operating. The LED keeps blinking when the system is in S1/S3 sleep state. The LED is off when the system is in S4 sleep state or powered off (S5).
HDLED (Hard Drive Activity LED):
Connect to the hard drive activity LED on the chassis front panel. The LED is on when the hard drive is reading or writing data.
The front panel design may differ 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.
English
20
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