B85M-E B85M-E/CSM
Motherboard
E8150
First Edition V1
April 2013
Copyright © 2013 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 http://support.asus.com/download
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....................................................................................... |
iv |
About this guide.......................................................................................... |
iv |
Package contents........................................................................................ |
vi |
B85M-E specifications summary............................................................... |
vi |
Product introduction
1.1 |
Before you proceed...................................................................... |
1-1 |
1.2 |
Motherboard overview................................................................. |
1-1 |
1.3 |
Central Processing Unit (CPU).................................................... |
1-3 |
1.4 |
System memory............................................................................ |
1-7 |
1.5 |
Expansion slots............................................................................ |
1-9 |
1.6 |
Jumpers....................................................................................... |
1-10 |
1.7 |
Connectors.................................................................................. |
1-11 |
1.8 |
Onboard LEDs............................................................................. |
1-19 |
1.9 |
Software support........................................................................ |
1-20 |
BIOS information
2.1 |
Managing and updating your BIOS............................................. |
2-1 |
2.2 |
BIOS setup program..................................................................... |
2-6 |
2.3 |
My Favorites.................................................................................. |
2-9 |
2.4 |
Main menu................................................................................... |
2-10 |
2.5 |
Ai Tweaker menu........................................................................ |
2-12 |
2.6 |
Advanced menu.......................................................................... |
2-22 |
2.7 |
Monitor menu.............................................................................. |
2-32 |
2.8 |
Boot menu................................................................................... |
2-35 |
2.9 |
Tools menu.................................................................................. |
2-41 |
2.10 |
Exit menu..................................................................................... |
2-42 |
Appendices
Notices....................................................................................................... |
A-1 |
ASUS contact information........................................................................ |
A-3 |
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 fix it by yourself. Contact a qualified 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 qualified service technician or your retailer.
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:
•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 fo the BIOS parameters are also provided.
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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.
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 |
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 (+). |
Package contents
Check your motherboard package for the following items.
Motherboard |
ASUS B85M-E motherboard |
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Cables |
2 x Serial ATA 6.0 Gb/s cables |
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Accessories |
1 x I/O Shield |
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Application DVD |
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.
B85M-E specifications summary
CPU |
LGA1150 socket for Intel® 4th Generation CoreTM i7/ i5 / i3, Pentium®, |
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Celeron® Processors |
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Supports Intel® 22/32nm CPU |
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Supports Intel® Turbo Boost Technology 2.0 |
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* The Intel® Turbo Boost Technology 2.0 support depends on the CPU types. |
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** Refer to www.asus.com for Intel® CPU support list. |
Chipset |
Intel® B85 Express Chipset |
Memory |
4 x DIMM, max. 32GB, DDR3 1600 / 1333 / 1066 MHz, non-ECC, un- |
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buffered memory |
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Dual-channel memory architecture |
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* Refer to www.asus.com for the latest Memory QVL (Qualified Vendors List). |
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** Due to Intel® chipset limitation, the DDR3 1600MHz and higher memory modules |
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on XMP mode will run at the maximum transfer rate of DDR3 1600MHz. |
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*** When you install a total memory of 4GB capacity or more, Windows® 32-bit |
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operating system may only recognize less than 3GB. We recommend a |
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maximum of 3GB system memory if you are using a Windows® 32-bit operating |
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system. |
Graphics |
Integrated graphics processor |
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Multi-VGA output support: D-Sub, DVI, HDMI and DisplayPort ports |
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- Supports DVI-D with max.resolution of 1920 x 2000 @60Hz |
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- Supports D-Sub with max. resolution of 1920 x 2000 @60Hz |
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- Supports HDMI with max. resolution of 2560 x 1600 @60Hz |
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- Supports DisplayPort with max. resolution of 4096 x 2160 @24Hz / |
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3840 x 2160 @60Hz |
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Maximum shared memory of 1 GB |
Expansion slots |
1 x PCI Express 3.0/2.0 x16 slot |
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1 x PCI Express 2.0 x16 slot (@ x4) |
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1 x PCI Express 2.0 x1 slot |
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1 x PCI slot |
Storage |
Intel® B85 Express Chipset: |
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- 2 x Serial ATA 3.0 Gb/s connectors (black) |
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- 4 x Serial ATA 6.0 Gb/s connector (yellow) |
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(continued on the next page) |
vi
B85M-E specifications summary
LAN
Audio
USB
ASUS unique features
Rear panel I/O ports
Realtek 8111F Gigabit LAN controller
8-channel Realtek® ALC887-VD2 High Definition Audio CODEC
-Supports multi-streaming
*Use a chassis with HD audio module in the front panel to support an 8- channel audio output.
4 x USB 3.0 ports (2 ports at midboard, 2 ports at back panel) 8 x USB 2.0 ports (4 ports at midboard, 4 ports at back panel)
ASUS Exclusive Features:
-ASUS USB 3.0 Boost
-ASUS Network iControl
-ASUS GPU Boost
-ASUS UEFI BIOS (EZ Mode)
ASUS Quiet Thermal Solution:
- ASUS Fan Xpert 2
ASUS EZ DIY:
-ASUS CrashFree BIOS 3
-ASUS EZ Flash 2
-ASUS MyLogo 2™
Other features
- Support SBA
1 x PS/2 keyboard port (purple)
1 x PS/2 mouse port (green)
1 x DVI port
1 x D-Sub port
1 x HDMI port
1 x DisplayPort
1 x LAN (RJ-45) port
4 x USB 2.0/1.1 ports
2 x USB 3.0 ports
3 x Audio jacks
(continued on the next page)
vii
B85M-E specifications summary
Internal connectors/ switches/ buttons
BIOS features
Manageability
Support DVD
Form factor
1 x USB 3.0 connector supports additional 2 USB 3.0 ports 2 x USB 2.0 connectors support additional 4 USB 2.0 ports 2 x SATA 3.0 Gb/s connectors
4 x SATA 6.0 Gb/s connector
1 x Chassis intrusion connector
1 x CLRTC jumper
1 x 4-pin CPU fan connector
2 x 4-pin Chassis fan connectors
1 x Front panel audio connector (AAFP)
1 x System panel connector
1 x Speaker connector
1 x LPT Header
1 x COM Header
1 x TPM Header
1 x 24-pin ATX power connector
1 x 4-pin ATX 12V power connector
128 Mb Flash ROM, EFI BIOS, PnP, DMI v2.0, WfM2.0, SM BIOS v2.7, ACPI v2.0a, SLP 3.0, EUP-ready, Multi-language BIOS, ASUS EZ Flash 2, ASUS CrashFree BIOS 3
WOL by PME, WOR by PME, PXE
Drivers
ASUS utilities
ASUS Update
Anti-virus software (OEM version)
MicroATX form factor: 9.6”x 8.4” (24.4cm x 21.3cm)
Specifications are subject to change without notice.
viii
Product introduction |
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.
1.2Motherboard overview
Before you install the motherboard, study the configuration of your chassis to ensure that the motherboard fits.
Unplug the power cord before installing or removing the motherboard. Failure to do so can cause you physical injury and damage to motherboard components.
1.2.1Placement direction
When installing the motherboard, place it into the chassis in the correct orientation. The edge with external ports goes to the rear part of the chassis as indicated in the image.
1.2.2Screw holes
Place six screws into the holes indicated by circles to secure the motherboard to the chassis.
Do not overtighten the screws! Doing so can damage the motherboard.
ASUS B85M-E |
1-1 |
Place this side 
towards the rear
of the chassis
B85M-E
1.2.3Motherboard layout
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21.3cm(8.4in) |
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KBMS |
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CPU_FAN |
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ATX12V |
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1255 |
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HDMI_DP |
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VGA |
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module) |
module) |
module) |
module) |
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USBDVI__34 |
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LGA1150 |
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(64bit,A1 240-pin |
(64bit,A2 240-pin |
(64bit,B1 240-pin |
(64bit,B2 240-pin |
EATXPWR |
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24.4cm(9.6in) |
USB3_56 |
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DDR3DIMM |
DDR3DIMM |
DDR3DIMM |
DDR3DIMM |
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8111F |
CHA_FAN1 |
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FAN2 |
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RTL |
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CHA |
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LAN_USB910 |
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BATTERY |
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USB3 |
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AUDIO |
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COM |
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B85M-E |
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PCIEX16_1 |
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ASM |
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SATA3G_1 |
SATA3G_2 |
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PCIEX1_1 |
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1083 |
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I/O |
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Intel® |
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16MB |
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B85 |
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BIOS |
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PCI1 |
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SATA6G_3 SATA6G_4 |
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ALC |
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PCIEX16_2 |
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887 |
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SATA6G_1 |
SATA6G_2 |
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CHASSIS |
LPT |
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SB_PWR |
TPM |
USB1112 |
USB1314 |
CLRTC |
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AAFP |
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SPEAKER |
F_PANEL |
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1-2 |
Chapter 1: Product introduction |
1.2.4Layout contents
Connectors/Jumpers/Slots/LED |
Page |
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1. |
Serial port connectors (10-1 pin COM) |
1-16 |
2. |
ATX power connectors (24-pin EATXPWR, 4-pin ATX12V) |
1-13 |
3. |
CPU and chassis fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN) |
1-15 |
4. |
Intel® LGA1150 CPU socket |
1-3 |
5. |
DDR3 DIMM slots |
1-7 |
6. |
USB 3.0 connector (20-1 pin USB3_12) |
1-18 |
7. |
Intel® B85 Serial ATA 3.0Gb/s connectors (7-pin SATA3G_1~2 [black]) |
1-17 |
8. |
Intel® B85 Serial ATA 6.0Gb/s connectors (7-pin SATA6G_1~4 [yellow]) |
1-16 |
9. |
System panel connector (10-1 pin F_PANEL) |
1-17 |
10. |
Speaker connector (4-pin SPEAKER) |
1-15 |
11. |
Clear RTC RAM (3-pin CLRTC) |
1-10 |
12. |
USB 2.0 connectors (10-1 pin USB1112, USB1314) |
1-18 |
13. |
TPM connector (20-1 pin TPM) |
1-14 |
14. |
Onboard LED (SB_PWR) |
1-19 |
15. |
LPT connector (26-1 pin LPT) |
1-13 |
16. |
Chassis intrusion connector (4-1 pin CHASSIS) |
1-19 |
17. |
Front panel audio connector (10-1 pin AAFP) |
1-14 |
1.3Central Processing Unit (CPU)
This motherboard comes with a surface mount LGA1150 socket designed for the Intel® 4th generation Core™ i7 / Core™ i5 / Core™ i3, Pentium® , Celeron® processors.
B85M-E
B85M-E CPU socket LGA1150
ASUS B85M-E |
1-3 |
Unplug all power cables 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. ASUS will shoulder the cost of repair only if the damage is shipment/ transit-related.
•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
LGA1150 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.
1.3.1Installing the CPU
1
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B
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3 |
1-4 |
Chapter 1: Product introduction |
4 C 5
A
1.3.2CPU heatsink and fan assembly installation
Apply the Thermal Interface Material to the CPU heatsink and CPU before you install the heatsink and fan if necessary.
ASUS B85M-E |
1-5 |
To install the CPU heatsink and fan assembly
1 A 2
B
B
A
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4 |
To uninstall the CPU heatsink and fan assembly
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A |
B
B
A
1-6 |
Chapter 1: Product introduction |
1.4System memory
1.4.1Overview
This motherboard comes with four Double Data Rate 3 (DDR3) Dual Inline Memory Module (DIMM) sockets. A DDR3 module has the same physical dimensions as a DDR2 DIMM but is notched differently to prevent installation on a DDR2 DIMM socket. DDR3 modules are developed for better performance with less power consumption. The figure illustrates the location of the DDR3 DIMM sockets:
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DIMM A1 DIMM A2 |
DIMM B1 DIMM B2 |
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B85M-E
B85M-E 240-pin DDR3 DIMM sockets
Channel Sockets
Channel A DIMM_A1 & DIMM_A2
Channel B DIMM_B1 & DIMM_B2
1.4.2Memory configurations
You may install 1GB, 2GB, 4GB, and 8GB unbuffered non-ECC DDR3 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 Intel® chipset limitation, DDR3 1600MHz and higher memory modules on XMP mode will run at the maximum transfer rate of DDR3 1600MHz.
•Always install DIMMs with the same CAS latency. For optimal compatibility, we recommend that you install memory modules of the same version or date code (D/C) from the same vendor. Check with the retailer to get the correct memory modules.
•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:
-Use a maximum of 3GB system memory if you are using a 32-bit Windows® OS.
-Install a 64-bit Windows® OS if you want to install 4GB or more on the motherboard.
•This motherboard does not support DIMMs made up of 512 megabits (Mb) chips or less.
•Memory modules with memory frequency higher than 2133 MHz and its corresponding timing or the loaded X.M.P. Profile is not the JEDEC memory standard. The stability and compatibility of these memory modules depend on the CPU’s capabilities and other installed devices.
•The maximum 32GB memory capacity can be supported with 8GB or above DIMMs. ASUS will update the memory QVL once the DIMMs are available in the market.
ASUS B85M-E |
1-7 |
•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. To operate at the vendor-marked
or at a higher frequency, refer to section 2.5 Ai Tweaker menu for manual memory frequency adjustment.
•For system stability, use a more efficient memory cooling system to support a full memory load (4 DIMMs) or overclocking condition.
•Visit the ASUS website at: www.asus.com for the latest QVL.
1.4.3Installing a DIMM
Unplug the power supply before adding or removing DIMMs or other system components. Failure to do so can cause severe damage to both the motherboard and the components.
1.Press the retaining clips outward to unlock a DIMM socket.
2.Align a DIMM on the socket such that the notch on the DIMM
matches the DIMM slot key on the socket.
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DIMM notch
1
Unlocked retaining clip
DIMM slot key
A DIMM is keyed with a notch so that it fits in only one direction. DO NOT force a DIMM into a socket in the wrong direction to avoid damaging the DIMM.
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3. Firmly insert the DIMM into the socket until the retaining clips snap back
in place and the DIMM is properly seated.
Locked Retaining Clip
1.4.4Removing a DIMM
To remove a DIMM:
1.Simultaneously press the retaining clips outward to unlock the DIMM.
1-8 |
Chapter 1: Product introduction |
Support the DIMM lightly with |
2 |
your fingers when pressing the |
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1 |
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2.Remove the DIMM from the socket.
DIMM notch
1.5Expansion slots
In the future, you may need to install expansion cards. The following sub sections describe the slots and the expansion cards that they support.
Unplug the power cord before adding or removing expansion cards. Failure to do so may cause you physical injury and damage motherboard components.
1.5.1Installing an expansion card
To install an expansion card:
1.Before installing the expansion card, read the documentation that came with it and make the necessary hardware settings for the card.
2.Remove the system unit cover (if your motherboard is already installed in a chassis).
3.Remove the bracket opposite the slot that you intend to use. Keep the screw for later use.
4.Align the card connector with the slot and press firmly until the card is completely seated on the slot.
5.Secure the card to the chassis with the screw you removed earlier.
6.Replace the system cover.
1.5.2Configuring an expansion card
After installing the expansion card, configure it by adjusting the software settings.
1.Turn on the system and change the necessary BIOS settings, if any. See Chapter 2 for information on BIOS setup.
2.Assign an IRQ to the card.
3.Install the software drivers for the expansion card.
When using PCI cards on shared slots, ensure that the drivers support “Share IRQ” or that the cards do not need IRQ assignments. Otherwise, conflicts will arise between the two PCI groups, making the system unstable and the card inoperable.
ASUS B85M-E |
1-9 |
1.5.3PCI slot
The PCI slots support LAN cards, SCSI cards, USB cards, and other cards that comply with
PCI specifications.
1.5.4PCI Express 2.0 x1 slot
This motherboard supports PCI Express x1 network cards, SCSI cards, and other cards that comply with the PCI Express specifications.
1.5.5PCI Express 3.0/2.0 x16 slot; PCI Express 2.0 x16 (@x4) slot
This motherboard supports PCI Express x16 network cards, SCSI cards, and other cards that comply with the PCI Express specifications.
IRQ assignments for this motherboard
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Intel PCH SATA controller |
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shared |
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Realtek 8111F controller |
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1.6Jumpers
1.Clear RTC RAM (3-pin CLRTC)
This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. The onboard button cell battery powers the RAM data in CMOS, which include system setup information such as system passwords.
B85M-E |
CLRTC |
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Clear RTC |
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B85M-E Clear RTC RAM
To erase the RTC RAM:
1.Turn OFF the computer and unplug the power cord.
2.Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the cap on pins 2-3 for about 5-10 seconds, then move the cap back to pins 1-2.
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 reenter data.
1-10 |
Chapter 1: Product introduction |
Except when clearing the RTC RAM, never remove the cap on CLRTC jumper default position. Removing the cap will cause system boot failure!
• If the steps above do not help, remove the onboard battery and move the jumper again to clear the CMOS RTC RAM data. After clearing the CMOS, reinstall the battery.
•You do not need to clear the RTC when the system hangs due to overclocking. For system failure due to overclocking, use the CPU Parameter Recall (C.P.R.) feature. Shut down and reboot the system, then the BIOS automatically resets parameter settings to default values.
1.7Connectors
1.7.1Rear panel connectors
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1.PS/2 mouse port (green). This port is for a PS/2 mouse.
2.DisplayPort. This port is for a DisplayPort-compatible devices.
3.Video Graphics Adapter (VGA) port. This 15-pin port is for a VGA monitor or other VGA-compatible devices.
4.LAN (RJ-45) port. This port allows Gigabit connection to a Local Area Network (LAN) through a network hub.
LAN port LED indications
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Speed LED |
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Description |
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OFF |
No link |
OFF |
10Mbps connection |
ORANGE |
Linked |
ORANGE |
100Mbps connection |
BLINKING |
Data activity |
GREEN |
1Gbps connection |
Activity Link |
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LAN port
5.Line In port (light blue). This port connects to the tape, CD, DVD player, or other audio sources.
6.Line Out port (lime). This port connects to a headphone or a speaker. In the 4, 6 and
8-channel configurations, the function of this port becomes Front Speaker Out.
ASUS B85M-E |
1-11 |
7.Microphone port (pink). This port connects to a microphone.
Refer to the audio configuration table for the function of the audio ports in 2, 4, 6, or 8- channel configuration.
Audio 2, 4, 6, or 8-channel configuration
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Headset |
4-channel |
6-channel |
8-channel |
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Light Blue (Rear panel) |
Line In |
Rear Speaker Out |
Rear Speaker Out |
Rear Speaker Out |
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Lime (Rear panel) |
Line Out |
Front Speaker Out |
Front Speaker Out |
Front Speaker Out |
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Pink (Rear panel) |
Mic In |
Mic In |
Bass/Center |
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Lime (Front panel) |
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Side Speaker Out |
To configure an 8-channel audio output:
Use a chassis with HD audio module in the front panel to support an 8-channel audio output.
8.USB 2.0 ports 9 and 10. These two 4-pin Universal Serial Bus (USB) ports are for USB 2.0/1.1 devices.
9.USB 3.0 ports 5 and 6. These two 9-pin Universal Serial Bus (USB) ports are for USB 3.0 devices.
•DO NOT connect a keyboard / mouse to any USB 3.0 port when installing Windows®
operating system.
•Due to USB 3.0 controller limitations, USB 3.0 devices can only be used under a Windows® OS environment and after USB 3.0 driver installation.
•USB 3.0 devices can only be used for data storage.
•We strongly recommend that you connect USB 3.0 devices to USB 3.0 ports for faster and better performance from your USB 3.0 devices.
10.USB 2.0 ports 3 and 4. These two 4-pin Universal Serial Bus (USB) ports are for USB 2.0/1.1 devices.
11.DVI-D port. This port is for any DVI-D compatible device. DVI-D can’t be converted to output RGB Signal to CRT and is not compatible with DVI-I.
12.HDMI port. This port is for a High-Definition Multimedia Interface (HDMI) connector, and is HDCP compliant allowing playback of HD DVD, Blu-ray, and other protected content.
13.PS/2 keyboard port (purple). This port is for a PS/2 keyboard.
1-12 |
Chapter 1: Product introduction |
1.7.2Internal connectors
1.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 PC-compatible computers.
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SLCT PE BUSY ACK# PD7 PD6 PD5 PD4 PD3 PD2 PD1 PD0 STB# 1 |
B85M-E |
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GND GND GND GND GND GND GND GND SLIN# INIT# ERR# AFD |
B85M-E Parallel Port Connector
2.ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)
These connectors are for ATX power supply plugs. The power supply plugs are designed to fit these connectors in only one orientation. Find the proper orientation and push down firmly until the connectors completely fit.
B85M-E
ATX12V
+12V DC +12V DC
PIN 1 |
GND
GND
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GND |
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+12 |
Volts |
+5 Volts |
+12 |
Volts |
+5 Volts |
+5V Standby |
+5 Volts |
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Power OK |
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GND |
+5 Volts |
GND |
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GND |
+5 Volts |
PSON# |
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GND |
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+3 Volts |
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B85M-E ATX power connectors
•We recommend that you use an ATX 12V Specification 2.0 compliant power supply unit (PSU) with a minimum of 300W power rating. This PSU type has 24-pin and 4-pin power plugs.
•DO NOT forget to connect the 4-pin ATX +12V power plug. Otherwise, the system will not boot up.
•We recommend that you use a PSU with higher power output when configuring a system with more power-consuming devices or when you intend to install additional devices. The system may become unstable or may not boot up if the power is inadequate.
•If you are uncertain about the minimum power supply requirement for your system, refer to the Recommended Power Supply Wattage Calculator at http://support.asus. com/PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us for details.
ASUS B85M-E |
1-13 |
3.Front panel audio connector (10-1 pin AAFP)
This connector is for a chassis-mounted front panel audio I/O module that supports either HD Audio or legacy AC`97 audio standard. Connect one end of the front panel audio I/O module cable to this connector.
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AGND NC SENSE1 RETUR |
SENSE2 RETUR |
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PORT1R PORT2R |
SENSESEND PORT2L |
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PORT1L |
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B85M-E Front panel audio connector
AGND NC NC |
NC |
PIN 1
Line out_L
NC
Line out_R
MICPWR
MIC2
Legacy AC’97 compliant definition
•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.
•If you want to connect a high-definition front panel audio module to this connector, set the Front Panel Type item in the BIOS setup to [HD]. If you want to connect an
AC’97 front panel audio module to this connector, set the item to [AC97]. By default, this connector is set to [HD]. See section 2.6.8 Onboard Devices Configuration for details.
4.TPM connector (20-1 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.
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SB SUS STAT GND +3VSB NC LAD0 +3V LAD3 PCIRST# FRAME PCICLK |
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PIN 1 |
B85M-E |
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NC NC SERIRQ NC GND LAD1 LAD2 NC |
GND |
B85M-E TPM Connector
The TPM module is purchased separately.
1-14 |
Chapter 1: Product introduction |
5.CPU and chassis fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN1/2)
Connect the fan cables to the fan connectors on the motherboard, ensuring that the black wire of each cable matches the ground pin of the connector.
CPU_FAN
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FANCPUPWM FANCPUIN FANCPUPWR GND |
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CHA FAN IN |
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B85M-E |
CHA_FAN1 |
GND
CHA FAN PWR
CHA FAN IN 
+5V
B85M-E Fan connectors
Do not forget to connect the fan cables to the fan connectors. Insufficient air flow inside the system may damage the motherboard components. These are not jumpers! Do not place jumper caps on the fan connectors! The CPU_FAN connector supports a CPU fan of maximum 2A (24 W) fan power.
Only the 4-pin CPU fan supports the ASUS Fan Xpert 2 feature.
6.Speaker connector (4-pin SPEAKER)
The 4-pin connector is for the chassis-mounted system warning speaker. The speaker allows you hear system beeps and warnings.
B85M-E
SPEAKER
+5V GND GND Speaker Out
PIN 1 
B85M-E Speaker Out Connector
ASUS B85M-E |
1-15 |
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