Motherboard PRIME B250M-A
E11969 First Edition August 2016 Copyright © 2016 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”).
Contents Safety information....................................................................................... iv About this guide.......................................................................................... iv Package contents........................................................................................ vi PRIME B250M-A specifications summary................................................. vi Chapter 1 Product introduction Motherboard overview.................................
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.
Where to find 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 flyers, that may have been added by your dealer. These documents are not part of the standard package.
Package contents Check your motherboard package for the following items. Motherboard ASUS PRIME B250M-A motherboard Cables 2 x Serial ATA 6.0 Gb/s cables Accessories 1 x I/O Shield 1 x M.2 screw package Application DVD 1 x Support DVD Documentation 1 x User Manual If any of the above items is damaged or missing, contact your retailer.
PRIME B250M-A specifications summary LAN Realtek® 8111H Gigabit LAN supports LANGuard Realtek® ALC887 8-channel High Definition Audio CODEC Gaming Audio: - LED-illuminated design: Brighten up your build with the gorgeous illuminated audio trace path Audio - 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 Japanes
PRIME B250M-A specifications summary EZ DIY UEFI BIOS EZ Mode - Featuring friendly graphics user interface ASUS unique features - ASUS CrashFree BIOS 3 - ASUS EZ Flash 3 Q-Design - ASUS Q-DIMM - ASUS Q-Slot ASUS Quiet Thermal Solution 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 Rear panel I/O ports 1 x 5Gb/s USB Type C port 2 x USB 2.0/1.1 ports 2 x USB 3.0/2.
PRIME B250M-A specifications summary Manageability WfM 2.0, DMI 3.0, WOL/WOR by PME, PXE Drivers Support DVD ASUS utilities EZ Update Anti-virus software (OEM version) Windows® 10 ( 64-bit) Windows® 8.1 (64-bit)* OS support Windows® 7 (64-bit / 32-bit)* * Windows® 8.1 64-bit and Windows® 7 32/64-bit are only supported when using 6th Generation Intel® Processors. Form factor mATX form factor: 9.6 in. x 8.1 in. (24.4 cm x 20.6 cm) Specifications are subject to change without notice.
1 Product introduction Motherboard overview • 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. • 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.
ATX power connectors (24-pin EATXPWR, 4-pin ATX12V) Correctly orient the ATX power supply plugs into these connectors and push down firmly until the connectors completely fit. • For a fully configured system, we recommend that you use a power supply unit (PSU) that complies with ATX 12 V Specification 2.0 (or later version) and provides a minimum power of 350 W.
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. +3V_BAT GND CLRTC 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 key during the boot process and enter BIOS setup to re-enter data.
TPM connector (14-1 pin TPM) This connector supports a Trusted Platform Module (TPM) system, which can securely store keys, digital certificates, passwords and data. A TPM system also helps enhance network security, protects digital identities, and ensures platform integrity. LPT connector (26-1 pin LPT) The LPT (Line Printing Terminal) connector supports devices such as a printer. LPT standardizes as IEEE 1284, which is the parallel port interface on IBM PCcompatible computers.
IRQ assignments for this motherboard A B C D HD Audio shared – – – XHCI Controller shared – – – SATA Controller Realtek 8111H LAN PCIEx16 PCIEx1_1 PCIEx1_2 M.2_1 M.
Rear panel connectors 1 2 12 11 3 10 9 8 4 5 6 7 1. PS/2 mouse port (green). This port is for a PS/2 mouse. 2. Video Graphics Adapter (VGA) port. This 15-pin port is for a VGA monitor or other VGA-compatible devices. 3. LAN (RJ-45) port. This port allows Gigabit connection to a Local Area Network (LAN) through a network hub.
Audio 2.1, 4.1, 5.1, or 7.1-channel configuration Port Light Blue (Rear panel) Lime (Rear panel) Pink (Rear panel) Lime (Front panel) Headset 2.1-channel Line In Line Out Mic In - 4.1-channel 5.1-channel 7.1-channel Rear Speaker Out Front Speaker Out Mic In Rear Speaker Out Front Speaker Out Bass/Center Rear Speaker Out Front Speaker Out Bass/Center - - Side Speaker Out To configure a 7.1-channel audio output: Use a chassis with HD audio module in the front panel to support a 7.
Central Processing Unit (CPU) This motherboard comes with a surface mount LGA1151 socket designed for 7th / 6th Generation Intel® Core™ i7 / i5 / i3, Pentium®, and Celeron® processors. Unplug all power cables before installing the CPU. • Ensure that you install the correct CPU designed for the LGA1151 socket only. DO NOT install a CPU designed for LGA1150, LGA1155 and LGA1156 sockets on the LGA1151 socket.
System memory Overview This motherboard comes with four Double Data Rate 4 (DDR4) Dual Inline Memory Module (DIMM) sockets. The figure illustrates the location of the DDR4 DIMM sockets: DIMM_A1 DIMM_A2 DIMM_B1 DIMM_B2 Channel Channel A Channel B Sockets DIMM_A1 & DIMM_A2 DIMM_B1 & DIMM_B2 • 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.
Installing a DIMM 1 2 A A B To remove a DIMM A B Chapter 1: Product introduction 1-10
BIOS information • Scan the QR code to view the BIOS update guide. • Before using the ASUS CrashFree BIOS 3 utility, rename the BIOS file in the removable device into B250MA.CAP. 2 BIOS setup program Use the BIOS Setup program to update the BIOS or configure its parameters. The BIOS screens include navigation keys and brief online help to guide you in using the BIOS Setup program.
EZ Mode By default, the EZ Mode screen appears when you enter the BIOS setup program. The EZ Mode provides you an overview of the basic system information, and allows you to select the display language, system performance mode, fan profile and boot device priority. To access the Advanced Mode, click Advanced Mode(F7) or press . The default screen for entering the BIOS setup program can be changed.
Advanced Mode The Advanced Mode provides advanced options for experienced end-users to configure the BIOS settings. The figure below shows an example of the Advanced Mode. Refer to the following sections for the detailed configurations. To access the EZ Mode, click EzMode(F7) or press .
Search on FAQ Move your mouse over this button to show a QR code. Scan this QR code with your mobile device to connect to the ASUS BIOS FAQ web page. You can also scan the QR code below. Exit menu The Exit menu items allow you to load the optimal default values for the BIOS items, and save or discard your changes to the BIOS items. Load Optimized Defaults This option allows you to load the default values for each of the parameters on the Setup menus.
Appendix Appendix Notices Federal Communications Commission Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: • This device may not cause harmful interference. • This device must accept any interference received including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
IC: Canadian Compliance Statement Complies with the Canadian ICES-003 Class B specifications. This device complies with RSS 210 of Industry Canada. This Class B device meets all the requirements of the Canadian interference-causing equipment regulations. This device complies with Industry Canada license exempt RSS standard(s).
REACH Complying with the REACH (Registration, Evaluation, Authorisation, and Restriction of Chemicals) regulatory framework, we published the chemical substances in our products at ASUS REACH website at http://csr.asus.com/english/REACH.htm. DO NOT throw the motherboard in municipal waste. This product has been designed to enable proper reuse of parts and recycling.
English ASUSTeK Computer Inc. hereby declares that this device is in compliance with the essential requirements and other relevant provisions of related Directives. Full text of EU declaration of conformity is available at: www.asus.com/support Français AsusTek Computer Inc. déclare par la présente que cet appareil est conforme aux critères essentiels et autres clauses pertinentes des directives concernées. La déclaration de conformité de l’UE peut être téléchargée à partir du site Internet suivant : www.
ASUS contact information ASUSTeK COMPUTER INC. Address Telephone Fax Web site Technical Support Telephone Fax Online support 4F, No. 150, Li-Te Road, Peitou, Taipei 112, Taiwan +886-2-2894-3447 +886-2-2890-7798 www.asus.com +86-21-38429911 +86-21-5866-8722, ext. 9101# http://qr.asus.com/techserv ASUS COMPUTER INTERNATIONAL (America) Address 800 Corporate Way, Fremont, CA 94539, USA Telephone +1-510-739-3777 Fax +1-510-608-4555 Web site http://www.asus.
DECLARATION OF CONFORMITY Per FCC Part 2 Section 2. 1077(a) Asus Computer International Responsible Party Name: 800 Corporate Way, Fremont, CA 94539. Address: Phone/Fax No: (510)739-3777/(510)608-4555 hereby declares that the product Product Name : Motherboard Model Number : PRIME B250M-A Conforms to the following specifications: FCC Part 15, Subpart B, Unintentional Radiators Supplementary Information: This device complies with part 15 of the FCC Rules.
