Asus B250M-A User Manual
PRIME B250M-A
Motherboard
E11969
First Edition
August 2016
Copyright © 2016 ASUSTeK COMPUTER INC. All Rights Reserved.
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ii
Contents
Safety information ...................................................................................... iv
About this guide ......................................................................................... iv
Package contents ....................................................................................... vi
PRIME B250M-A specications summary ................................................ vi
Chapter 1 Product introduction
Motherboard overview ............................................................................. 1-1
Central Processing Unit (CPU) ................................................................ 1-8
System memory ........................................................................................ 1-9
Chapter 2 BIOS information
BIOS setup program ................................................................................. 2-1
EZ Mode ..................................................................................................... 2-2
Advanced Mode ........................................................................................ 2-3
Exit menu ................................................................................................... 2-4
Appendix
Notices .......................................................................................................A-1
ASUS contact information .......................................................................A-5
iii
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 x it by yourself. Contact a qualied service
technician or your retailer.
Operation safety
• Before installing the motherboard and adding components, 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 be exposed to moisture.
• Place the product on a stable surface.
• If you encounter technical problems with the product, contact a qualied service
technician or your retailer.
About this guide
This user guide contains the information you need when installing and conguring the
motherboard.
How this guide is organized
This guide contains the following parts:
• Chapter 1: Product introduction
This chapter describes the features of the motherboard and the new technology it
supports. It includes descriptions of the switches, jumpers, and connectors on the
motherboard.
• Chapter 2: BIOS information
This chapter discusses changing system settings through the BIOS Setup menus.
Detailed descriptions for the BIOS parameters are also provided.
iv
Where to nd more information
Refer to the following sources for additional information and for product and software
updates.
1. ASUS websites
The ASUS website provides updated information on ASUS hardware and software
products. Refer to the ASUS contact information.
2. Optional documentation
Your product package may include optional documentation, such as warranty yers,
that may have been added by your dealer. These documents are not part of the
standard package.
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
completing a task.
CAUTION: Information to prevent damage to the components when
completing 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
<Key> Keys enclosed in the less-than and greater-than sign
<Key1> + <Key2> + <Key3> If you must press two or more keys simultaneously, the key
Used to emphasize a word or a phrase.
means that you must press the enclosed key.
Example: <Enter> means that you must press the Enter or
Return key.
names are linked with a plus sign (+).
v
Package contents
Check your motherboard package for the following items.
Motherboard
Cables
Accessories
Application DVD
Documentation
ASUS PRIME B250M-A motherboard
2 x Serial ATA 6.0 Gb/s cables
1 x I/O Shield
1 x M.2 screw package
1 x Support DVD
1 x User Manual
If any of the above items is damaged or missing, contact your retailer.
PRIME B250M-A specications summary
LGA1151 socket for 7th / 6th Generation Intel
and Celeron® processors
CPU
Chipset Intel® B250 Chipset
Memory
Expansion
slots
Graphics
Storage
Supports Intel® 14nm CPU
®
Supports Intel
* The Intel® Turbo Boost Technology 2.0 support depends on the CPU types.
** Refer to www.asus.com for Intel
Turbo Boost Technology 2.0*
4x DIMM, max 64 GB, DDR4 2400 / 2133 MHz, non-ECC, un-buffered memory*
Dual-channel memory architecture
Supports Intel
* DDR4 2400MHz memory frequency is only supported by 7th Generation Intel® processors.
** Hyper DIMM support is subject to the physical characteristics of individual CPUs. Please
refer to Memory QVL (Qualied Vendors List) for details.
®
Extreme Memory Prole (XMP)
1 x PCI Express 3.0/2.0 x16 slot (@ x16 mode)
2 x PCI Express 3.0/2.0 x1 slots
Integrated graphics processor - Intel® HD Graphics support
Multi-VGA output support: HDMI, DVI-D, D-sub ports
- Supports HDMI 1.4b with maximum resolution of 4096 x 2160 @24Hz / 2560 x
1600 @60Hz
- Supports DVI-D with maximum resolution of 1920 x 1200 @60Hz
- Supports D-sub with maximum resolution of 1920 x 1200 @60Hz
Maximum shared memory of 1024MB
®
Intel
B250 Chipset
- 1 x M.2_1 Socket 3 with M key, type 2242/2260/2280 storage devices support (both
SATA & PCIE 3.0 x 4 mode)*
- 1 x M.2_2 Socket 3 with M key, type 2242/2260/2280 storage devices support (PCIE
3.0 x 4 mode)
®
- Ready for Intel
Optane Memory**
- 6 x SATA 6.0 Gb/s ports (gray)
®
- Supports Intel
* When M.2 Socket 3 is set to SATA mode, SATA port 1 is disabled.
®
** Intel
Before using Intel® Optane memory modules, ensure that you have updated your
motherboard drivers and BIOS to the latest version from ASUS support website.
***These functions will work depending on the CPU installed.
Smart Response Technology***
Optane Technology is only supported when using 7th Generation Intel® processors.
®
CPU support list.
(continued on the next page)
®
Core™ i7 / i5 / i3, Pentium®,
vi
PRIME B250M-A specications summary
LAN
Audio
USB
ASUS unique
features
Realtek® 8111H Gigabit LAN supports LANGuard
®
ALC887 8-channel High Denition Audio CODEC
Realtek
Gaming Audio:
- LED-illuminated design: Brighten up your build with the gorgeous illuminated
audio trace path
- Audio Shielding: Ensures precision analog/digital separation and greatly reduces
multi-lateral interference
- Dedicated audio PCB layers: Separate layers for left and right channels to guard
the quality of the sensitive audio signals
- Premium Japanese audio capacitors: Provide warm, natural and immersive
sound with exceptional clarity and delity
- Supports Jack-Detection and Front Panel Jack-Retasking
®
B250 Chipset
Intel
- 1 x 5Gb/s USB Type C port supports 3A power output (at back panel)
- 4 x USB 3.0/2.0 ports (2 ports at mid-board; 2 ports at back panel, blue, Type
A)
- 6 x USB 2.0/1.1 ports (4 ports at mid-board; 2 ports at back panel)
ASUS 5X PROTECTION III
- ASUS SafeSlot Core - Strengthens your slot and DIMM pins
- ASUS LANGuard - Protects against LAN surges, lightning strikes
staticelectricity discharges!
-
ASUS Overvoltage Protection - World-class circuit-protecting power
design
- ASUS DIGI+ VRM - 5 Phase digital power design
- ASUS Stainless-Steel Back I/O: 3X corrosion-resistance for greater durability!
Superb Performance
M.2 Onboard
- The latest transfer technologies with up to 32Gb/s data transfer speeds
ASUS EPU
- EPU
UEFI BIOS
- Most advanced options with fast response time
Gaming Scenario
Audio Features
- Audio that roars on the battleeld
ASUS Exclusive Features
- ASUS AI Charger
- ASUS AI Suite 3
(continued on the next page)
vii
PRIME B250M-A specications summary
EZ DIY
UEFI BIOS EZ Mode
- Featuring friendly graphics user interface
ASUS unique
features
ASUS Quiet
Thermal
Solution
Rear panel I/O
ports
Internal
connectors
BIOS features
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 3
Q-Design
- ASUS Q-DIMM
- ASUS Q-Slot
Quiet Thermal Design
- ASUS Fan Xpert 2+
- Stylish Fanless Design: PCH Heatsink
1 x PS/2 keyboard port (purple)
1 x PS/2 mouse port (green)
1 x DVI-D port
1 x RGB port
1 x HDMI port
1 x 5Gb/s USB Type C port
2 x USB 2.0/1.1 ports
2 x USB 3.0/2.0 ports (blue, Type A)
1 x LAN (RJ-45) port
3 x Audio jacks support 8-channel audio output*
* Use a chassis with HD audio module in the front panel to support an 8-channel
audio output.
1 x USB 3.0 / 2.0 connector supports additional 2 USB 3.0/ 2.0 ports (19-pin)
2 x USB 2.0 / 1.1 connectors support additional 4 USB 2.0/ 1.1 ports
6 x SATA 6.0 Gb/s connectors (gray)
2 x M.2 Socket 3 (for M Key, type 2242/2260/2280 devices)
1 x CPU fan connector (PWM mode only)
2 x Chassis Fan connectors (4-pin) for both 3-pin (DC mode) and 4-pin (PWM
mode) coolers control
1 x Front panel audio connector (AAFP)
1 x Speaker connector
1 x COM connector
1 x Chassis Intrusion header
1 x System panel connector
1 x Clear CMOS header
1 x S/PDIF Out header
1 x TPM connector
1 x LPT connector
1 x 24-pin EATX power connector
1 x 4-pin ATX 12V power connector
128Mb Flash ROM, UEFI AMI BIOS, PnP, DMI3.0, WfM2.0, SM BIOS 3.0,
ACPI 6.1, Multi-language BIOS, ASUS EZ Flash 3, CrashFree BIOS 3, F6
Qfan Control, F3 My Favorites, Last Modied log, F12 PrintScreen, and ASUS
DRAM SPD (Serial Presence Detect) memory information
(continued on the next page)
viii
PRIME B250M-A specications summary
Manageability WfM 2.0, DMI 3.0, WOL/WOR by PME, PXE
Drivers
Support DVD
OS support
Form factor mATX form factor: 9.6 in. x 8.1 in. (24.4 cm x 20.6 cm)
ASUS utilities
EZ Update
Anti-virus software (OEM version)
®
10 ( 64-bit)
Windows
®
8.1 (64-bit)*
Windows
®
7 (64-bit / 32-bit)*
Windows
* Windows® 8.1 64-bit and Windows® 7 32/64-bit are only supported when using 6th
Generation Intel® Processors.
Specications are subject to change without notice.
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