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STRIX B250G GAMING
Motherboard
E12467
First Edition
February 2017
Copyright© 2017 ASUSTeK COMPUTER INC. All Rights Reserved.
No part of this manual, including the products and software described in it, may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means, except documentation kept by the purchaser for backup purposes, without the express written permission of ASUSTeK COMPUTER INC. (“ASUS”).
Product warranty or service will not be extended if: (1) the product is repaired, modified or altered, unless such repair, modification of alteration is authorized in writing by ASUS; or (2) the serial number of the product is defaced or missing.
ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, 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 USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE), EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT.
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.
Products and corporate names appearing in this manual 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.
Offer to Provide Source Code of Certain Software
This product contains copyrighted software that is licensed under the General Public License (“GPL”), under the Lesser General Public License Version (“LGPL”) and/or other Free Open Source Software Licenses. Such software in this product is distributed without any warranty to the extent permitted by the applicable law. Copies of these licenses are included in this product.
Where the applicable license entitles you to the source code of such software and/or other additional data, you may obtain it for a period of three years after our last shipment of the product, either
(1)for free by downloading it from https://www.asus.com/support/
or
(2)for the cost of reproduction and shipment, which is dependent on the preferred carrier and the location where you want to have it shipped to, by sending a request to:
ASUSTeK Computer Inc.
Legal Compliance Dept.
15 Li Te Rd.,
Beitou, Taipei 112
Taiwan
In your request please provide the name, model number and version, as stated in the About Box of the product for which you wish to obtain the corresponding source code and your contact details so that we can coordinate the terms and cost of shipment with you.
The source code will be distributed WITHOUT ANY WARRANTY and licensed under the same license as the corresponding binary/object code.
This offer is valid to anyone in receipt of this information.
ASUSTeK is eager to duly provide complete source code as required under various Free Open Source Software licenses. If however you encounter any problems in obtaining the full corresponding source code we would be much obliged if you give us a notification to the email address gpl@asus.com, stating the product and describing the problem (please DO NOT send large attachments such as source code archives, etc. to this email address).
ii
Contents
Safety information....................................................................................................... |
v |
About this guide.......................................................................................................... |
vi |
STRIX B250G GAMING specifications summary................................................... |
viii |
Package contents....................................................................................................... |
xi |
Installation tools and components........................................................................... |
xii |
Chapter 1: |
Product Introduction |
|
|
1.1 |
Motherboard overview............................................................................... |
1-1 |
|
|
1.1.1 |
Before you proceed..................................................................... |
1-1 |
|
1.1.2 |
Motherboard layout...................................................................... |
1-2 |
|
1.1.3 |
Central Processing Unit (CPU).................................................... |
1-3 |
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1.1.4 |
System memory........................................................................... |
1-4 |
|
1.1.5 |
Expansion slots............................................................................ |
1-6 |
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1.1.6 |
Headers ...................................................................................... |
1-7 |
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1.1.7 |
Onboard LEDs............................................................................. |
1-8 |
|
1.1.8 |
Internal connectors...................................................................... |
1-9 |
Chapter 2: |
Basic Installation |
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|
2.1 |
Building your PC system........................................................................... |
2-1 |
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2.1.1 |
Motherboard installation.............................................................. |
2-1 |
|
2.1.2 |
CPU installation........................................................................... |
2-3 |
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2.1.3 |
CPU heatsink and fan assembly installation................................ |
2-4 |
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2.1.4 |
DIMM installation......................................................................... |
2-6 |
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2.1.5 |
ATX power connection................................................................. |
2-7 |
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2.1.6 |
SATA device connection.............................................................. |
2-8 |
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2.1.7 |
Front I/O connector...................................................................... |
2-9 |
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2.1.8 |
Expansion card installation........................................................ |
2-10 |
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2.1.9 |
M.2 installation........................................................................... |
2-12 |
2.2 |
Motherboard rear and audio connections.............................................. |
2-13 |
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2.2.1 |
Rear I/O connection................................................................... |
2-13 |
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2.2.2 |
Audio I/O connections................................................................ |
2-14 |
2.3 |
Starting up for the first time.................................................................... |
2-16 |
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2.4 |
Turning off the computer......................................................................... |
2-17 |
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Chapter 3: |
BIOS Setup |
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3.1 |
Knowing BIOS............................................................................................. |
3-1 |
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3.2 |
BIOS setup program................................................................................... |
3-2 |
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3.2.1 |
EZ Mode...................................................................................... |
3-3 |
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3.2.2 |
Advanced Mode........................................................................... |
3-4 |
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3.2.3 |
QFan Control............................................................................... |
3-7 |
iii
3.3 |
My Favorites................................................................................................ |
3-9 |
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3.4 |
Main menu................................................................................................. |
3-11 |
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3.5 |
Ai Tweaker menu...................................................................................... |
3-11 |
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3.6 |
Advanced menu........................................................................................ |
3-12 |
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3.6.1 |
Platform Misc Configuration....................................................... |
3-12 |
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3.6.2 |
CPU Configuration..................................................................... |
3-12 |
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3.6.3 |
System Agent (SA) Configuration.............................................. |
3-13 |
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3.6.4 |
PCH Configuration..................................................................... |
3-13 |
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3.6.5 |
PCH Storage Configuration....................................................... |
3-13 |
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3.6.6 |
PCH-FW Configuration.............................................................. |
3-13 |
|
3.6.7 |
Onboard Devices Configuration................................................. |
3-13 |
|
3.6.8 |
APM Configuration..................................................................... |
3-14 |
|
3.6.9 |
Network Stack Configuration..................................................... |
3-14 |
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3.6.10 |
HDD/SSD SMART Information.................................................. |
3-14 |
|
3.6.11 |
USB Configuration..................................................................... |
3-14 |
3.7 |
Monitor menu............................................................................................ |
3-14 |
|
3.8 |
Boot menu................................................................................................. |
3-15 |
|
3.9 |
Tool menu.................................................................................................. |
3-16 |
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3.9.1 |
ASUS EZ Flash 3 Utility............................................................. |
3-16 |
|
3.9.2 |
Secure Erase............................................................................. |
3-16 |
|
3.9.3 |
ASUS SPD Information.............................................................. |
3-17 |
|
3.9.4 |
Graphics Card Information......................................................... |
3-17 |
3.10 |
Exit menu................................................................................................... |
3-18 |
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3.11 |
Updating BIOS.......................................................................................... |
3-18 |
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3.11.1 |
EZ Update.................................................................................. |
3-18 |
|
3.11.2 |
ASUS EZ Flash 3....................................................................... |
3-19 |
|
3.11.3 |
ASUS CrashFree BIOS 3.......................................................... |
3-21 |
Appendix
Notices ..................................................................................................................... |
A-1 |
ASUS contact information...................................................................................... |
A-5 |
iv
Safety information
Electrical safety
•To prevent electrical shock hazard, disconnect the power cable from the electrical outlet before relocating the system.
•When adding or removing devices to or from the system, ensure that the power cables for the devices are unplugged before the signal cables are connected. If possible, disconnect all power cables from the existing system before you add a device.
•Before connecting or removing signal cables from the motherboard, ensure that all power cables are unplugged.
•Seek professional assistance before using an adapter or extension cord. These devices could interrupt the grounding circuit.
•Ensure that your power supply is set to the correct voltage in your area. If you are not sure about the voltage of the electrical outlet you are using, contact your local power company.
•If the power supply is broken, do not try to fix it by yourself. Contact a qualified service technician or your retailer.
Operation safety
•Before installing the motherboard and adding devices on it, carefully read all the manuals that came with the package.
•Before using the product, ensure all cables are correctly connected and the power cables are not damaged. If you detect any damage, contact your dealer immediately.
•To avoid short circuits, keep paper clips, screws, and staples away from connectors, slots, sockets and circuitry.
•Avoid dust, humidity, and temperature extremes. Do not place the product in any area where it may become wet.
•Place the product on a stable surface.
•If you encounter technical problems with the product, contact a qualified service technician or your retailer.
v
About this guide
This user guide contains the information you need when installing and configuring the motherboard.
How this guide is organized
This guide contains the following parts:
1.Chapter 1: Product Introduction
This chapter describes the features of the motherboard and the new technology it supports. It includes description of the switches, jumpers, and connectors on the motherboard.
2.Chapter 2: Basic Installation
This chapter lists the hardware setup procedures that you have to perform when installing system components.
3.Chapter 3: BIOS Setup
This chapter tells how to change system settings through the BIOS Setup menus. Detailed descriptions of the BIOS parameters are also provided.
Where to find more information
Refer to the following sources for additional information and for product and software updates.
1.ASUS website
The ASUS website (www.asus.com) provides updated information on ASUS hardware and software products.
2.Optional documentation
Your product package may include optional documentation, such as warranty flyers, that may have been added by your dealer. These documents are not part of the standard package.
vi
Conventions used in this guide
To ensure that you perform certain tasks properly, take note of the following symbols used throughout this manual.
DANGER/WARNING: Information to prevent injury to yourself when trying to complete a task.
CAUTION: Information to prevent damage to the components when trying to complete a task.
IMPORTANT: Instructions that you MUST follow to complete a task.
NOTE: Tips and additional information to help you complete a task.
Typography
Bold text |
Indicates a menu or an item to select. |
Italics |
Used to emphasize a word or a phrase. |
<Key> |
Keys enclosed in the less-than and greater-than sign |
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means that you must press the enclosed key. |
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Example: <Enter> means that you must press the Enter or |
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Return key. |
<Key1> + <Key2> + <Key3> |
If you must press two or more keys simultaneously, the key |
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names are linked with a plus sign (+). |
vii
STRIX B250G GAMING specifications summary
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Intel® socket 1151 for 7th/ 6th Generation Core™ i7/ Core™ i5/ Core™ i3/ |
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Pentium®, and Celeron® processors* |
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Supports 14nm CPU |
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CPU |
Supports Intel® Turbo Boost Technology 2.0** |
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* |
Refer to www.asus.com for Intel® CPU support list. |
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** The Intel® Turbo Boost Technology 2.0 support depends on the CPU types. |
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Chipset |
Intel® B250 Chipset |
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4 x DIMM, max. 64GB DDR4 2400* /2133** MHz Non-ECC, Un-buffered |
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Memory |
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Dual channel memory architecture |
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Supports Intel® Extreme Memory Profile (XMP)*** |
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Memory |
* |
Due to Intel® chipset limitation, DDR4 2400MHz memory frequency is only |
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supported by 7th Generation Intel® processors. Higher memory modules will run |
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at the maximum transfer rate of DDR4 2400MHz. |
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** Due to Intel® chipset limitation, DDR4 2133MHz and higher memory modules on |
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6th Generation Intel® processors will run at the maximum transfer rate of DDR4 |
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2133MHz. |
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*** Refer to www.asus.com for the lastest Memory QVL(Qualified Vendors List). |
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Expansion slots |
1 x PCIe 3.0/2.0 x16 slot (at x 16 mode) |
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2 x PCIe 3.0/2.0 x1 slots |
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Integrated Graphics ProcessorIntel® HD Graphics support |
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Multi-VGA output support: HDMI/ DVI-D ports |
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Supports HDMI 1.4b with max. resolution of 4096 x 2160@24Hz |
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VGA |
Supports DVI-D with max. resolution of 1920 x 1200@60Hz |
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Supports Intel® InTru™ 3D/Quick Sync Video/Clear Video HD Technology/ |
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Insider™ |
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Maximum shared memory of 1024 MB |
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Intel® B250 Chipset with Intel® Rapid Storage Technology 15 support |
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6 x SATA 6Gb/s ports |
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- |
1 x M.2_1 Socket 3 with M key, type 2242/2260/2280 storage devices |
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support (PCIe 3.0 x4 and SATA modes)* |
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- |
1 x M.2_2 Socket 3 with M key, type 2242/2260/2280/22110 storage |
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Storage |
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devices support (PCIe 3.0 x4 mode only), supports Intel® Optane™ |
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Memory** |
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* |
The M.2_1 socket shares SATA_1 port when using M.2 SATA mode device. |
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Adjust BIOS settings to use a SATA device. |
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** Intel® Optane™ Technology is only supported when using 7th Generation Intel® |
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Processors. Before using Intel® Optane™ memory modules, ensure that you |
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have updated your motherboard drivers and BIOS to the latest version from |
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ASUS support website. |
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Intel® I219-V Gigabit LAN - Dual interconnect between the integrated Media |
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LAN |
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Access Controller (MAC) and physical layer (PHY) |
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Anti-surge LANGuard |
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Intel® B250 Chipset |
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USB |
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6 x USB 3.0 ports (2 ports at back panel [blue], 4 ports at mid-board) |
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- 6 x USB 2.0 ports (4 ports at back panel, 2 ports at mid-board) |
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(continued on the next page) |
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viii
STRIX B250G GAMING specifications summary
|
SupremeFX S1220A 8-Channel High Definition Audio CODEC |
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- Supports up to 32-Bit/192kHz playback* |
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- |
Impedance sense for front and rear headphone outputs |
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- |
High quality 120dB SNR stereo playback output and 113dB SNR recording |
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input |
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Audio |
- |
SupremeFX Shielding Technology |
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- |
Dual Headpone Amplifiers |
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- Jack-detection, Multi-streaming, and Front Panel Jack-retasking |
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* Due to limitations in HDA bandwidth, 32-Bit/192kHz is not supported for |
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8-channel audio and due to Windows® 7 limitations, 32-bit playback is |
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unavailable for Windows® 7. |
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ROG Exclusive |
ROG Overwolf |
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Features |
ROG CPU-Z |
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Performance Optimization |
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GPU Boost |
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Fan Xpert 3 |
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AI Suite 3 |
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Gamers Guardian |
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SafeSlot |
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DIGI+ VRM |
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DRAM Overcurrent Protection |
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ESD Guards on LAN, Audio, KBMS, and USB3.0/2.0 ports |
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ASUS Special |
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Highly Durable Components |
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- Stainless Steel Back I/O |
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Features |
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ASUS EZ DIY |
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ASUS EZ Flash 3 |
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ASUS CrashFree BIOS 3 |
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ASUS Q-Design |
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Q-Shield |
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Q-Slot |
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Q-DIMM |
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ASUS Exclusive Features |
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Ai Charger |
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ASUS UEFI BIOS EZ Mode featuring friendly graphics user interface |
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1 x PS/2 keyboard/mouse combo port |
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1 x DVI-D port |
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1 x HDMI port |
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Rear Panel I/O |
4 x USB 2.0 ports |
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2 x USB 3.0 ports [blue] |
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Ports |
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1 x Anti-surge LAN (RJ45) port |
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3 x Audio jacks* |
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* Use a chassis with HD audio module in the front panel to support an 8-channel |
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audio output. |
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(continued on the next page) |
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ix
STRIX B250G GAMING specifications summary
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2 x USB 3.0 connectors support additional 4 USB 3.0 ports |
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1 x USB 2.0 connector supports additional 2 USB 2.0 ports |
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6 x SATA 6Gb/s connectors |
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1 x COM connector |
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1 x 4-pin CPU fan connector |
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1 x 4-pin chassis fan connector |
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1 x 24-pin EATX power connector |
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Internal I/O |
1 x 8-pin EATX 12V power connector |
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connectors |
1 x M.2_1 Socket 3 for M Key, type 2242/2260/2280 storage devices support |
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(Supports PCIe 3.0 x4 and SATA modes) |
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1 x M.2_2 Socket 3 for M Key, type 2242/2260/2280/22110 storage devices |
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support (Supports PCIe 3.0 x4 mode only) |
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1 x Front panel audio connector (AAFP) |
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1 x TPM connector |
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1 x System panel connector |
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1 x Clear CMOS jumper (2-pin) |
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128 Mb Flash ROM, UEFI AMI BIOS, PnP, DMI3.0, WfM2.0, SM BIOS 3.0, |
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BIOS Features |
ACPI 5.0, Multi-language BIOS, ASUS EZ Flash 3, CrashFree BIOS 3, F6 |
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Qfan Control, F3 My Favorites, Last Modified log, F12 PrintScreen, and ASUS |
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DRAM SPD (Serial Presence Detect) memory information |
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Manageability |
WfM2.0, DMI3.0, WOL by PME, PXE |
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Drivers |
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Support DVD |
ASUS Utilities |
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contents |
EZ Update |
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Anti-virus software (OEM version) |
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Windows® 10 64-bit |
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Operating |
Windows® 8.1 64-bit* |
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Windows® 7* |
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system support |
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* Windows® 8.1 64-bit and Windows® 7 32/64-bit are only supported when using 6th |
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Generation Intel® Processors. |
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Form factor |
mATX Form Factor, 9.6” x 8.6” (24.4cm x 21.8cm) |
• Specifications are subject to change without notice.
• Visit the ASUS website for the software manual.
x
Package contents
Check your motherboard package for the following items.
Motherboard |
STRIX B250G GAMING |
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Cables |
2 x SATA 6Gb/s cables |
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1 x I/O shield |
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Accessories |
1 x ROG cable label |
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1 x Strix series sticker |
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1 x M.2 screw package |
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Application drive |
Support DVD |
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Documentation |
User Guide |
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If any of the above items is damaged or missing, contact your retailer.
xi
Installation tools and components
Intel® 1151 CPU
Intel® 1151 compatible CPU Fan
PC chassis |
SATA hard disk drive |
Phillips (cross) screwdriver |
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1 bag of screws |
DIMM |
Power supply unit
SATA optical disc drive (optional)
Graphics card
The tools and components listed above are not included in the motherboard package.
xii
Product Introduction |
1 |
1.1Motherboard overview
1.1.1Before you proceed
Take note of the following precautions before you install motherboard components or change any motherboard settings.
•Unplug the power cord from the wall socket before touching any component.
•Before handling components, use a grounded wrist strap or touch a safely grounded object or a metal object, such as the power supply case, to avoid damaging them due to static electricity.
•Hold components by the edges to avoid touching the ICs on them.
•Whenever you uninstall any component, place it on a grounded antistatic pad or in the bag that came with the component.
•Before you install or remove any component, ensure that the ATX power supply 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, or components.
Chapter 1
ASUS STRIX B250G GAMING |
1-1 |
1 Chapter
1.1.2Motherboard layout
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1 |
2 |
3 |
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4 |
21.8cm(8.6in) |
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5 |
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CPU_FAN |
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KBMS_USB910 |
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DIGI |
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+VRM |
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EATX12V |
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DVI |
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DIMMDDR4A1 (64bit, 288-pin module) |
DIMMDDR4A2 (64bit, 288-pin module) |
DIMMDDR4B1 (64bit, 288-pin module) |
DIMMDDR4B2 (64bit, 288-pin module) |
SATA6G3SATA6G1SATA6G5 |
EATXPWR SATA6G4SATA6G2SATA6G6 |
24.4cm(9.6in) |
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LANGuard |
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1(SOCKET3) |
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1 |
HDMI |
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LGA1151 |
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USB78 |
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Intel |
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I219V |
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LAN_USB3_56 |
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6 |
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PCIE |
SATA |
IRST |
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X4 |
V |
X |
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2280 |
2260 |
2242 |
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AUDIO |
CHA_FAN |
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M.2 |
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PCIEX16_1 |
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S1220A |
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3 |
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PCIEX1_1 |
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Super |
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COVER |
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15 |
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I/O |
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BATTERY |
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Intel® |
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B250 |
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PCIEX1_2 |
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PCIE SATA |
IRST |
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X4 |
X |
V |
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22110 |
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2280 |
2260 |
2242 |
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2(SOCKET3)M.2 |
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7 |
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SB_PWR |
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128Mb |
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TPM |
USB1112 |
USB3_12 |
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USB3_34 |
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BIOS |
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AAFP |
COM |
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PANEL |
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CLRTC |
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14 |
13 |
12 |
11 |
10 |
9 |
Refer to 1.1.8 Internal connectors and 2.2.1 Rear I/O connection for more information about rear panel connectors and internal connectors.
1-2 |
Chapter 1: Product Introduction |
Layout contents
Connectors/Jumpers/Buttons and switches/Slots |
Page |
|
1. |
ATX power connectors (24-pin EATXPWR, 8-pin EATX12V) |
1-12 |
2. |
CPU and chassis fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN) |
1-11 |
3. |
M.2 sockets (M.2_1~2) |
1-14 |
4. |
LGA1151 CPU socket |
1-3 |
5. |
DDR4 DIMM slots |
1-4 |
6. |
Intel® Serial ATA 6 Gb/s connectors (7-pin SATA6G_1~6) |
1-12 |
7. |
Standby power LED (SB_PWR) |
1-8 |
8. |
System panel connector (20-5 pin PANEL) |
1-13 |
9. |
Clear RTC RAM jumper (2-pin CLRTC) |
1-7 |
10. |
USB 3.0 connectors (20-1 pin USB3_12, USB3_34) |
1-10 |
11. |
USB 2.0 connector (10-1 pin USB1112) |
1-10 |
12. |
TPM connector (14-1 pin TPM) |
1-11 |
13. |
Serial port connector (10-1 pin COM) |
1-9 |
14. |
Front panel audio connector (10-1 pin AAFP) |
1-9 |
15. |
SupremeFX LED |
1-8 |
1.1.3Central Processing Unit (CPU)
The motherboard comes with a surface mount LGA1151 socket designed for the 7th / 6th Generation Intel® Core™ i7 / Intel® Core™ i5 / Intel® Core™ i3, Pentium®, and Celeron® processors.
STRIX B250G GAMING CPU socket LGA1151
• Ensure that all power cables are unplugged before installing the CPU.
• Upon purchase of the motherboard, ensure that the PnP cap is on the socket and the socket contacts are not bent. Contact your retailer immediately if the PnP cap is missing, or if you see any damage to the PnP cap/socket contacts/motherboard components.
•Keep the cap after installing the motherboard. ASUS will process Return Merchandise Authorization (RMA) requests only if the motherboard comes with the cap on the LGA1151 socket.
•The product warranty does not cover damage to the socket contacts resulting from incorrect CPU installation/removal, or misplacement/loss/incorrect removal of the PnP cap.
Chapter 1
ASUS STRIX B250G GAMING |
1-3 |
1 Chapter
1.1.4System memory
The motherboard comes with four DDR4 (Double Data Rate 4) Quad Inline Memory Modules (DIMM) slots.
A DDR4 module is notched differently from a DDR, DDR2, or DDR3 module. DO NOT install a DDR, DDR2, or DDR3 memory module to the DDR4 slot.
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DIMM A1 DIMM A2 |
DIMM B1 DIMM B2 |
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STRIX B250G GAMING 288-pin DDR4 DIMM sockets
Recommended memory configurations
1-4 |
Chapter 1: Product Introduction |
Memory configurations
You may install 1 GB, 2 GB, 4 GB, 8 GB and 16 GB unbuffered and non ECC DDR4 DIMMs into the DIMM sockets.
•You may install varying memory sizes in Channel A, and Channel B. The system
maps the total size of the lower-sized channel for the dual-channel configuration. Any excess memory from the higher-sized channel is then mapped for single-channel operation.
•Due to the memory address limitation on 32-bit Windows® OS, when you install 4GB or more memory on the motherboard, the actual usable memory for the OS can be about 3GB or less. For effective use of memory, we recommend that you do any of the following:
a)Use a maximum of 3GB system memory if you are using a 32-bit Windows® OS.
b)Install a 64-bit Windows® OS when you want to install 4 GB or more on the motherboard.
c)For more details, refer to the Microsoft® support site at http://support.microsoft. com/kb/929605/en-us.
•The design of the DIMM fan may vary. Ensure that the DIMM fan fits to the motherboard.
•The default memory operation frequency is dependent on its Serial Presence Detect (SPD), which is the standard way of accessing information from a memory module. Under the default state, some memory modules for overclocking may operate at a lower frequency than the vendor-marked value.
•For system stability, use a more efficient memory cooling system to support a full memory load (4 DIMMs) or overclocking condition.
•Memory modules with memory frequency higher than 2133MHz and their corresponding timing or the loaded XMP profile is not the JEDEC memory standard. The stability and compatibility of the memory modules depend on the CPU’s capabilities and other installed devices.
•Always install the DIMMS with the same CAS Latency. For an optimum compatibility, we recommend that you install memory modules of the same version or data code (D/C) from the same vendor. Check with the vendor to get the correct memory modules.
•ASUS exclusively provides hyper DIMM support function.
•Hyper DIMM support is subject to the physical characteristics of individual CPUs. Load the X.M.P. or D.O.C.P. settings in the BIOS for the hyper DIMM support.
•Visit the ASUS website for the latest QVL.
Chapter 1
ASUS STRIX B250G GAMING |
1-5 |
1.1.5Expansion slots
Unplug the power cord before adding or removing expansion cards. Failure to do so may cause you physical injury and damage motherboard components.
1 Chapter
PCIEX16_1
PCIEX1_1
PCIEX1_2
Slot No. Slot Description
1PCIe x16_1 slot
2PCIe x1_1 slot
3PCIe x1_2 slot
1-6 |
Chapter 1: Product Introduction |
IRQ assignments for this motherboard
|
A |
B |
C |
D |
PCIe x16 |
shared |
– |
– |
– |
PCIe x1_1 |
– |
shared |
– |
– |
PCIe x1_2 |
shared |
– |
– |
– |
HD audio controller |
shared |
– |
– |
– |
XHCI controller |
shared |
– |
– |
– |
SATA controller |
shared |
– |
– |
– |
Intel® Lan i219V |
shared |
– |
– |
– |
1.1.6Headers
1.Clear RTC RAM (2-pin CLRTC)
This header allows you to clear the CMOS RTC RAM data of the system setup information such as date, time, and system passwords.
Chapter 1
CLRTC
+3V_BAT GND
PIN 1
STRIX B250G GAMING Clear RTC RAM
To erase the RTC RAM:
1.Turn OFF the computer and unplug the power cord.
2.Use a metal object such as a screwdriver to short the two pins.
3.Plug the power cord and turn ON the computer.
4.Hold down the <Del> key during the boot process and enter BIOS setup to re-enter data.
If the steps above do not help, remove the onboard battery and short the two pins again to clear the CMOS RTC RAM data. After clearing the CMOS, reinstall the battery.
ASUS STRIX B250G GAMING |
1-7 |
1.1.7Onboard LEDs
|
1. |
Standby Power LED (SB_PWR) |
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The motherboard comes with a standby power LED. The LED lights up to indicate that |
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1Chapter |
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the system is ON, in sleep mode, or in soft-off mode. This is a reminder that you should |
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shut down the system and unplug the power cable before removing or plugging in any |
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motherboard component. The illustration below shows the location of the onboard LED. |
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SB_PWR
ON |
OFF |
Standby Power |
Powered Off |
STRIX B250G GAMING Onboard LED |
|
2.SupremeFX LED
The SupremeFX LED lights up in the following two ways to bring you an ultimate lighting effect. This LED also outlines the separation of the audio components from the rest of your motherboard.
SupremeFX LED
STRIX B250G GAMING SupremeFX LED Lighting
Lit mode |
Description |
Breathing mode |
The LED blinks intermittently. |
Still mode |
The LED becomes solid red. |
You can turn off the SupremeFX LED or change the lit modes from the BIOS or the LED
Control app in Ai Suite 3. To change the setting in BIOS, go to Advanced > Onboard
Devices Configuration > SupremeFX LED Lighting item. See section 3.6.7 Onboard
Devices Configuration for details.
1-8 |
Chapter 1: Product Introduction |
1.1.8Internal connectors
1. |
Front panel audio connector (10-1 pin AAFP) |
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This connector is for a chassis-mounted front panel audio I/O module that supports HD |
1 |
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Audio. Connect one end of the front panel audio I/O module cable to this connector. |
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Chapter |
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AGND NC SENSE1 RETUR |
SENSE2 RETUR |
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AAFP |
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PORT1 L PORT1 R PORT2 R |
SENSE SEND PORT2 L |
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HD-audio-compliant |
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pin definition |
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STRIX B250G GAMING Front panel audio connector |
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We recommend that you connect a high-definition front panel audio module to this connector to avail of the motherboard’s high-definition audio capability.
2.Serial port connector (10-1 pin COM)
This connector is for a serial (COM) port. Connect the serial port module cable to this connector, then install the module to a slot opening at the back of the system chassis.
COM
CTS
DSR
DTR
RXD
PIN 1
DCD TXD GND RTS RI
STRIX B250G GAMING Serial port (COM) connector
The COM module is purchased separately.
ASUS STRIX B250G GAMING |
1-9 |
1 Chapter
3.USB 3.0 connectors (20-1 pin USB3_12, USB3_34)
These connectors allow you to connect a USB 3.0 module for additional USB 3.0 front or rear panel ports. With an installed USB 3.0 module, you can enjoy all the benefits of USB 3.0 including faster data transfer speeds of up to 5 Gb/s, faster charging time for USB-chargeable devices, optimized power efficiency, and backward compatibility with USB 2.0.
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USB3_12 |
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USB3_34 |
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IntA P2 D+ IntA P2 D- GND IntA P2 SSTX+ IntA P2 SSTXGND IntA P2 SSRX+ IntA P2 SSRXUSB3+5V |
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IntA P2 D+ IntA P2 D- GND IntA P2 SSTX+ IntA P2 SSTXGND IntA P2 SSRX+ IntA P2 SSRXUSB3+5V |
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PIN 1 |
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PIN 1 |
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GND IntA_P1_D+ IntA_P1_DGND IntA_P1_SSTX+ IntA_P1_SSTXGND IntA_P1_SSRX+ IntA_P1_SSRXUSB3+5V |
GND IntA_P1_D+ IntA_P1_DGND IntA_P1_SSTX+ IntA_P1_SSTXGND IntA_P1_SSRX+ IntA_P1_SSRXUSB3+5V |
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STRIX B250G GAMING USB3.0 front panel connectors
The USB 3.0 module is purchased separately.
4.USB 2.0 connector (10-1 pin USB1112)
This connector is for a USB 2.0 port. Connect the USB module cable to this connector, then install the module to a slot opening at the back of the system chassis. This USB connector complies with USB 2.0 specification that supports up to 480 Mb/s connection speed.
USB1112
USBUSBNC USB+5VP11__GND -P11+
PIN 1
USB+5V-P12+GND
P12_USB_USB
STRIX B250G GAMING USB2.0 connector
DO NOT connect a 1394 cable to the USB connectors. Doing so will damage the motherboard!
The USB 2.0 module is purchased separately.
1-10 |
Chapter 1: Product Introduction |
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