Instruction/ maintenance manual of the product B85M-G Asus
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Motherboard B85M-G.
ii E8146 First Edition V1 May 2013 Copyright © 2013 ASUST eK COMPUTER INC. All Rights Reserved. No part of this manual, including the products and software described in it, may be reproduced, transmi.
iii Contents Safety information ...................................................................................................... iv About this guide ................................................................................................
iv Safety information Electrical safety T o 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.
v 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.
vi B85M-G specications summary (continued on the next page) CPU LGA1 150 socket for Intel ® 4th Generation Core TM i7/ i5 / i3, Pentium ® , Celeron ® Processors * Refer to www.asus.com for Intel ® CPU support list. Chipset Intel ® B85 Express Chipset Memory 4 x DIMM, max.
vii B85M-G specications summary LAN Realtek 81 1 1G Gigabit LAN controller Audio 8-channel Realtek ® ALC887-VD2 High Denition Audio CODEC - Supports multi-streaming * Use a chassis with HD audio module in the front panel to support an 8- channel audio output.
viii B85M-G specications summary Internal connectors 1 x USB 3.0 connector supports additional 2 USB 3.0 ports 2 x USB 2.0 connectors support additional 4 USB 2.
ASUS B85M-G 1-1 Product introduction 1 1.1 Before you proceed T ake 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.
1-2 Chapter 1: Product introduction B85M-G Place this side towards the rear of the chassis 1.2.3 Motherboard layout B85M-G PCIEX16 PCIEX1_1 PCIEX1_2 F_PANEL SPEAKER CLRTC SPDIF_OUT CHASSIS LPT USBPWF KB_USBPWR USB1112 USB1314 AAFP ATX12V EATXPWR CPU_FAN CHA_FAN BATTERY Super I/O ASM 1442 ALC 887 RTL 8111G DIGI +VRM 64Mb BIOS SB_PWR 23.
ASUS B85M-G 1-3 1.2.4 Layout contents Connectors/Jumpers/Slots/LED Page 1. A TX power connectors (24-pin EA TXPWR, 4-pin A TX12V) 1-14 2. Keyboard and USB device wakeup (KB_USBPWB) 1-1 1 3. CPU and chassis fan connectors (4-pin CPU_F AN, 4-pin CHA_F AN) 1-16 4.
1-4 Chapter 1: Product introduction 1.3.1 Installing the CPU 1 2 3 A B 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.
ASUS B85M-G 1-5 A B C 5 4 1.3.2 CPU 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 .
1-6 Chapter 1: Product introduction 3 4 A B B A T o uninstall the CPU heatsink and fan assembly 2 1 T o install the CPU heatsink and fan assembly 2 B A A B 1.
ASUS B85M-G 1-7 1.4 System memory 1.4.1 Overview 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.
1-8 Chapter 1: Product introduction • 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.
ASUS B85M-G 1-9 2. Remove the DIMM from the socket. Support the DIMM lightly with your ngers when pressing the retaining clips. The DIMM might get damaged when it ips out with extra force. DIMM notch 1 2 1.5 Expansion slots In the future, you may need to install expansion cards.
1-10 Chapter 1: Product introduction 1.5.3 PCI Express 2.0 x1 slots This motherboard supports PCI Express x1 network cards, SCSI cards, and other cards that comply with the PCI Express specications.
ASUS B85M-G 1-1 1 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.
1-12 Chapter 1: Product introduction 1.7 Connectors 1.7.1 Rear panel connectors LAN port Speed LED Activity Link LED 4 5 3 6 9 10 7 1 12 2 1 1 8 1. PS/2 mouse port (green). This port is for a PS/2 mouse. 2. V ideo Graphics Adapter (VGA) port. This 15-pin port is for a VGA monitor or other VGA-compatible devices.
ASUS B85M-G 1-13 Audio 2, 4, 6, or 8-channel conguration Port Headset 2-channel 4-channel 6-channel 8-channel Light Blue (Rear panel) Line In Rear Speaker Out Rear Speaker Out Rear Speaker Out Lime.
1-14 Chapter 1: Product introduction 1.7.2 Internal connectors • We recommend that you use an A TX 12V Specication 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 A TX +12V power plug.
ASUS B85M-G 1-15 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 .
1-16 Chapter 1: Product introduction 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-G B85M-G Speaker Out Connector +5V GND GND Speaker Out SPEAKER PIN 1 5.
ASUS B85M-G 1-17 8. Intel ® B85 Serial A T A 6.0Gb/s connector (7-pin SA T A6G_1~4 [yellow]) This connector connects to Serial A T A 6.0 Gb/s hard disk drives via Serial A T A 6.0 Gb/s signal cables. When using hot-plug and NCQ, set the SA T A Mode Selection item in the BIOS to [AHCI].
1-18 Chapter 1: Product introduction 9. USB 3.0 connector (20-1 pin USB3_12) This connector allows 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 benets of USB 3.
ASUS B85M-G 1-19 1 1. System panel connector (10-1 pin P ANEL) This connector supports several chassis-mounted functions. • System power LED (2-pin PWR_LED) This 2-pin connector is for the system power LED. Connect the chassis power LED cable to this connector .
1-20 Chapter 1: Product introduction 13. Chassis intrusion connector (4-1 pin CHASSIS) This connector is for a chassis-mounted intrusion detection sensor or switch.
ASUS B85M-G 1-21 1.9 Software support 1.9.1 Installing an operating system This motherboard supports Windows ® 7 (32bit/64bit) and Windows ® 8 (32bit/64bit) Operating Systems (OS). Always install the latest OS version and corresponding updates to maximize the features of your hardware.
ASUS B85M-G 2-1 2.1 Managing and updating your BIOS Save a copy of the original motherboard BIOS le to a USB ash disk in case you need to restore the BIOS in the future.
2-2 Chapter 2: Getting started 2.1.2 ASUS EZ Flash 2 The ASUS EZ Flash 2 feature allows you to update the BIOS without using an OS-based utility . Before you start using this utility , download the latest BIOS le from the ASUS website at www .asus.
ASUS B85M-G 2-3 2.1.3 ASUS CrashFree BIOS 3 utility The ASUS CrashFree BIOS 3 is an auto recovery tool that allows you to restore the BIOS le when it fails or gets corrupted during the updating process. Y ou can restore a corrupted BIOS le using the motherboard support DVD or a USB ash drive that contains the updated BIOS le.
2-4 Chapter 2: Getting started Booting the system to a DOS environment 1. Insert the USB ash drive with the latest BIOS le and BIOS Updater to the USB port. 2. Boot your computer . When the ASUS Logo appears, press <F8> to show th e BIOS Boot Device Select Menu .
ASUS B85M-G 2-5 3. Press <T ab> to switch between screen elds and use the <Up/Down/Home/End> keys to select the BIOS le and press <Enter>. BIOS Updater checks the selected BIOS le and prompts you to conrm BIOS update. 4. Select Y es and press <Enter>.
2-6 Chapter 2: Getting started 2.2 BIOS setup program Use the BIOS Setup program to update the BIOS or congure its parameters. The BIOS screens include navigation keys and brief online help to guide you in using the BIOS Setup program.
ASUS B85M-G 2-7 • The boot device options vary depending on the devices you installed to the system. • The Boot Menu (F8) button is available only when the boot device is installed to the system.
2-8 Chapter 2: Getting started Navigation keys General help Menu bar Submenu item Conguration elds Menu items Back button Pop-up window Scroll bar Menu items The highlighted item on the menu bar displays the specic items for that menu. For example, selecting Main shows the Main menu items.
ASUS B85M-G 2-9 Pop-up window Select a menu item and press <Enter> to display a pop-up window with the conguration options for that item. Scroll bar A scroll bar appears on the right side of a menu screen when there are items that do not t on the screen.
2-10 Chapter 2: Getting started 2.4 Main menu The Main menu screen appears when you enter the Advanced Mode of the BIOS Setup program. The Main menu provides you an overview of the basic system information, and allows you to set the system date, time, language, and security settings.
ASUS B85M-G 2-1 1 Administrator Password If you have set an administrator password, we recommend that you enter the administrator password for accessing the system. Otherwise, you might be able to see or change only selected elds in the BIOS setup program.
2-12 Chapter 2: Getting started 2.5 Ai T weaker menu The Ai T weaker menu items allow you to congure overclocking-related items. Be cautious when changing the settings of the Ai T weaker menu items. Incorrect eld values can cause the system to malfunction.
ASUS B85M-G 2-13 Scroll down to display the following items: T arget CPU T urbo-Mode Speed : xxxxMHz Displays the target CPU T urbo-Mode speed. T arget DRAM Speed : xxxxMHz Displays the target DRAM speed. T arget Cache Speed : xxxxMHz Displays the target Cache speed.
2-14 Chapter 2: Getting started The following two items appear only when you set the CPU Core Ratio to [Sync All Cores] or [Per Core] . 1-Core Ratio Limit [Auto] Select [Auto] to apply the CPU default T urbo Ratio setting or manually assign a 1-Core Limit value, which should be higher than or equal to the 2-Core Ratio Limit.
ASUS B85M-G 2-15 2.5.1 1 DRAM Timing Control The subitems in this menu allow you to set the DRAM timing control features. Use the <+> and <-> keys to adjust the value. T o restore the default setting, type [auto] using the keyboard and press the <Enter> key .
2-16 Chapter 2: Getting started RTL IOL control DRAM RTL initial V alue [Auto] Conguration options: [Auto] [1 DRAM Clock] – [63 DRAM Clock] DRAM RTL (CHA) [Auto] Conguration options: [Auto] [1.
ASUS B85M-G 2-17 Allows you to enable or disable the MRC fast boot. Conguration options: [Auto] [Enabled] [Disabled] DRAM CLK Period [Auto] Conguration options: [Auto] [1] – [14] Channel A DIMM Control [Enable Bot.
2-18 Chapter 2: Getting started CPU Power Duty Control [T .Probe] DIGI + VRM Duty Control adjusts the current of every VRM phase and the thermal conditions of every component. [T . Probe] Select to maintain the VRM thermal balance. [Extreme] Select to maintain the current VRM balance.
ASUS B85M-G 2-19 CPU Internal Power Switching Frequency Frequency T uning Mode [Auto] Allows you to set the frequency tuning mode. Conguration options: [Auto] [+] [-] CPU Internal Power Fault Control Thermal Feedback [Auto] When enabled, it allows CPU to take precautionary actions when the thermal of the external regulator exceeds the limit.
2-20 Chapter 2: Getting started Use the <+> and <-> keys to adjust the value. Power Saving Level 3 Threshhold [Auto] Allows you to set the power saving level 3 threshhold.
ASUS B85M-G 2-21 CPU Cache V oltage Override [Auto] This item appears only when you set the CPU Cache V oltage to [Manual Mode] and allows you to set the CPU Cache voltage override.
2-22 Chapter 2: Getting started T otal Adaptive Mode CPU Graphics V oltage [Auto] This item appears only when you set the CPU Graphics V oltage to [Adaptive Mode] and allows you to set the total adaptive mode CPU graphics voltage. The values range from 0.
ASUS B85M-G 2-23 2.6 Advanced menu The Advanced menu items allow you to change the settings for the CPU and other system devices. Be cautious when changing the settings of the Advanced menu items. Incorrect eld values can cause the system to malfunction.
2-24 Chapter 2: Getting started 2.6.1 CPU Conguration The items in this menu show the CPU-related information that the BIOS automatically detects. The items shown in submenu may be different due to the CPU you installed. Intel ® Adaptive Thermal Monitor [Enabled] [Enabled] Enables the overheated CPU to throttle its clock speed to cool down.
ASUS B85M-G 2-25 Boot performance mode [Max Non-T u...] This item allows you to select the boot performance mode. Conguration options: [Max Non- T urbo Performance] [Max battery] [Turbo Performance] CPU Power Management Conguration This item allows you to manage and congure the CPU’s power .
2-26 Chapter 2: Getting started 2.6.2 PCH Conguration PCI Express Conguration DMI Link ASPM Control [Auto] Allows you to control the Active State Power Managemennt on both NB and SB side of the DMI Link. Conguration options: [Auto] [Enabled] [Disabled] ASPM Support [Disabled] Allows you to set the ASPM support.
ASUS B85M-G 2-27 2.6.3 SA T A Conguration While entering Setup, the BIOS automatically detects the presence of SA T A devices. The SA T A Port items show Not Present if no SA T A device is installed to the corresponding SA T A port. SA T A Mode Selection [AHCI] Allows you to set the SA T A conguration.
2-28 Chapter 2: Getting started Graphics Conguration Allows you to select a primary display from iGPU, and PCIe graphical devices. Primary Display [Auto] Allows you to select which of the iGPU/PCIE Graphics device should be the Primary Display .
ASUS B85M-G 2-29 2.6.5 USB Conguration The items in this menu allow you to change the USB-related features. The USB Devices item shows the auto-detected values. If no USB device is detected, the item shows None. Legacy USB Support [Enabled] [Enabled] Enables the support for USB devices on legacy operating systems (OS).
2-30 Chapter 2: Getting started 2.6.7 Onboard Devices Conguration HD Audio Controller [Enabled] [Enabled] Enables the HD Audio Device. [Disabled] Disables the HD Audio Device. The following item appears only when you set the HD Audio Controller item to [Enabled].
ASUS B85M-G 2-31 Change Settings [Auto] Allows you to select an optimal setting for Super I/O devices. Conguration options: [Auto] [IO=378h; IRQ=5;] [IO=378h; IRQ=5,6,7,9,10,1 1,12;] [IO=278h; IRQ=5,6,7,9,10,1 1,12;] [IO=3BCh; IRQ=5,6,7,9,10,1 1,12;] Device Mode [STD Printe.
2-32 Chapter 2: Getting started 2.6.9 Network Stack Network Stack [Disabled] This item allows user to disable or enable the UEFI network stack. Conguration options: [Disabled] [Enabled] The following two items appear only when you set the previous item to [Enabled].
ASUS B85M-G 2-33 2.7.1 CPU T emperature [xxxºC/xxxºF] The onboard hardware monitor automatically detects and displays the CPU temperature. Select Ignore if you do not wish to display the detected temperature.
2-34 Chapter 2: Getting started CPU Lower T emperature [20] Displays the lower limit of the CPU temperature. CPU Fan Min. Duty Cycle(%) [20] Use the <+> and <-> keys to adjust the minimum CPU fan duty cycle. The values range from 20% to 100%.
ASUS B85M-G 2-35 2.8 Boot menu The Boot menu items allow you to change the system boot options. Scroll down to display the following items: 2.8.1 Fast Boot [Enabled] [Enabled] Select to accelerate the boot speed. [Disabled] Select to go back to normal boot.
2-36 Chapter 2: Getting started PS/2 Keyboard and Mouse Support [Auto] Select any of these settings when PS/2 keyboard and mouse are installed. These settings only apply when Fast Boot is enabled.
ASUS B85M-G 2-37 [Off] Sets the power-on state of the NumLock to [Off]. 2.8.4 W ait for ‘F1’ If Error [Enabled] When this item is set to [Enabled], the system waits for the F1 key to be pressed when error occurs. Conguration options: [Disabled] [Enabled] 2.
2-38 Chapter 2: Getting started Boot from PCIe/PCI Expansion Devices [Legacy OpROM rst] Allows you to select the type of PCIe/PCI expansion devices that you want to launch.
ASUS B85M-G 2-39 KEK Management The KEK (Key-exchange Key or Key Enrollment Key) manages the Signature database (db) and Revoked Signature database (dbx). Key-exchange Key (KEK) refers to Microsoft ® Secure Boot Key-Enrollment Key (KEK). Delete the KEK Allows you to delete the KEK from your system.
2-40 Chapter 2: Getting started 2.8.10 Boot Option Priorities These items specify the boot device priority sequence from the available devices. The number of device items that appears on the screen depends on the number of devices installed in the system.
ASUS B85M-G 2-41 2.9 T ools menu The T ools menu items allow you to congure options for special functions. Select an item then press <Enter> to display the submenu.
2-42 Chapter 2: Getting started 2.10 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.
B85M-G A-1 Appendices 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.
A-2 Appendices 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.
B85M-G A-3 ASUS contact information ASUST eK COMPUTER INC. Address 15 Li-T e Road, Peitou, T aipei, T aiwan 1 1259 T elephone +886-2-2894-3447 Fax +886-2-2890-7798 E-mail info@asus.com.tw Web site www .asus.com.tw T echnical Support T elephone +86-21-3842991 1 Online support support.
A-4 Appendices DECLARATION OF CONFORMITY Per FCC Part 2 Section 2. 1077(a) Responsible Party Name: Asus Computer International Address: 800 Corporate Way, Fremont , CA 94539.
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If you already are a holder of Asus B85M-G, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Asus B85M-G.
However, one of the most important roles played by the user manual is to help in solving problems with Asus B85M-G. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Asus B85M-G along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
