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Asus B85M-G User Manual
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Asus B85M-G User Manual

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  • Page 1 B85M-G...
  • Page 2 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.

  • Page 3: Table Of Contents

    Contents Safety information ...................... iv About this guide ......................iv Package contents ....................... vi B85M-G specifications summary ................vi Product introduction Before you proceed ................... 1-1 Motherboard overview ................1-1 Central Processing Unit (CPU) ..............1-3 System memory ..................1-7 Expansion slots..................

  • Page 4: Safety Information

    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.

  • Page 5: Conventions Used In This Guide

    Refer to the following sources for additional information and for product and software updates. ASUS websites The ASUS website provides updated information on ASUS hardware and software products. Refer to the ASUS contact information. Optional documentation Your product package may include optional documentation, such as warranty flyers, that may have been added by your dealer.

  • Page 6: Package Contents

    4 x DIMM, max. 32GB, DDR3 1600 / 1333 / 1066 MHz, non-ECC, un- buffered memory Dual-channel memory architecture * Refer to www.asus.com for the latest Memory QVL (Qualified Vendors List). ® ** Due to Intel chipset limitation, the DDR3 1600MHz and higher memory modules on XMP mode will run at the maximum transfer rate of DDR3 1600MHz.
  • Page 7 8 x USB 2.0 ports (4 ports at midboard, 4 ports at back panel) ASUS DIGI+ VRM: ASUS unique features - ASUS DIGI+VRM: Digital Power Design for the CPU - ASUS 3 Phase Power Design ASUS Exclusive Features: - ASUS USB 3.0 Boost...
  • Page 8 1 x 4-pin ATX 12V power connector BIOS features 64Mb 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 Manageability WOL by PME, WOR by PME, PXE...

  • Page 9: Product Introduction

    1.2.2 Screw 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-G...

  • Page 10: Motherboard Layout

    Place this side towards the rear of the chassis B85M-G 1.2.3 Motherboard layout 19.3cm(7.6in) KBMS CPU_FAN DIGI +VRM ATX12V USB910 USB3_56 HDMI 1442 CHA_FAN LAN_USB34 BATTERY AUDIO PCIEX16 B85M-G 8111G 64Mb BIOS PCIEX1_1 Super Intel ® SB_PWR PCIEX1_2 SPDIF_OUT SATA6G_4...

  • Page 11: Central Processing Unit (Cpu)

    Central Processing Unit (CPU) This motherboard comes with a surface mount LGA1150 socket designed for the Intel ® generation Core™ i7 / Core™ i5 / Core™ i3, Pentium , Celeron processors. ® ® B85M-G B85M-G CPU socket LGA1150 ASUS B85M-G...

  • Page 12: Installing The Cpu

    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.

  • Page 13: Cpu Heatsink And Fan Assembly Installation

    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. ASUS B85M-G...
  • Page 14 To install the CPU heatsink and fan assembly To uninstall the CPU heatsink and fan assembly Chapter 1: Product introduction...

  • Page 15: System Memory

    This motherboard does not support DIMMs made up of 512 megabits (Mb) chips or less. • 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-G...

  • Page 16: Installing A Dimm

    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. 1.4.3 Installing a DIMM Unplug the power supply before adding or removing DIMMs or other system components.

  • Page 17: Expansion Slots

    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-G...

  • Page 18: Clear Rtc Ram

    B85M-G Normal Clear RTC (Default) B85M-G Clear RTC RAM To erase the RTC RAM: Turn OFF the computer and unplug the power cord. 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.

  • Page 19: Keyboard And Usb Device Wake-Up

    KB_USBPWB +5VSB B85M-G (Default) B85M-G Keyboard and USB device wake up • The USB device wake-up feature requires a power supply that can provide 500mA on the +5VSB lead for each USB port; otherwise, the system would not power up.

  • Page 20: Connectors

    Connectors 1.7.1 Rear panel connectors PS/2 mouse port (green). This port is for a PS/2 mouse. Video Graphics Adapter (VGA) port. This 15-pin port is for a VGA monitor or other VGA-compatible devices. LAN (RJ-45) port. This port allows Gigabit connection to a Local Area Network (LAN) through a network hub.
  • Page 21 (Pixel Clock = H total x V Total x Frame Rate (Screen refresh rate)): HDMI port: 300 MHz DVI port: 165 MHz VGA port: 180 MHz PS/2 keyboard port (purple). This port is for a PS/2 keyboard. ASUS B85M-G 1-13...

  • Page 22: Internal Connectors

    • 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. 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.

  • Page 23: Front Panel Audio Connector

    B85M-G HD-audio-compliant Legacy AC’97 pin definition compliant definition B85M-G Front panel audio connector • 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].
  • Page 24 1A (12 W) fan power. 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. SPEAKER B85M-G PIN 1 B85M-G Speaker Out Connector 1-16 Chapter 1: Product introduction...
  • Page 25 These connectors connect to Serial ATA 3.0 Gb/s hard disk drives and optical drives via Serial ATA 3.0 Gb/s signal cables. SATA3G_1 SATA3G_2 B85M-G B85M-G Intel SATA 3.0Gb/s connectors ® When using hot-plug and NCQ, set the SATA Mode Selection item in the BIOS to [AHCI]. See section 2.6.3 SATA Configuration for details.
  • Page 26 IntA_P1_SSRX- USB3+5V USB3+5V PIN 1 B85M-G USB3.0 Front panel connector The USB 3.0 module is purchased separately. USB 2.0 connectors (10-1 pin USB1112, USB1314) These connectors are for USB 2.0 ports. Connect the USB module cable to any of these connectors, then install the module to a slot opening at the back of the system chassis.

  • Page 27: System Panel Connector

    PWR BTN PIN 1 B85M-G +HDD_LED RESET B85M-G System panel connector • 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. The system power LED lights up when you turn on the system power, and blinks when the system is in sleep mode.

  • Page 28: Onboard Leds

    Remove the jumper caps only when you intend to use the chassis intrusion detection feature. CHASSIS B85M-G B85M-G Chassis intrusion connector Onboard LEDs Standby Power LED The motherboard comes with a standby power LED that lights up to indicate that the system is ON, in sleep mode, or in soft-off mode.

  • Page 29: Software Support

    Place the Support DVD into the optical drive. If Autorun is enabled in your computer, the DVD automatically displays the Specials screen which lists the unique features of your ASUS motherboard. Click Drivers, Utilities, AHCI Driver, Manual, Contact and Specials tabs to display their respective menus.

  • Page 30: Bios Information

    Managing and updating your BIOS Save a copy of the original motherboard BIOS file to a USB flash disk in case you need to restore the BIOS in the future. Copy the original motherboard BIOS using the ASUS Update utility.

  • Page 31: Asus Ez Flash

    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 file from the ASUS website at www.asus.com. To update the BIOS using EZ Flash 2: Insert the USB flash disk that contains the latest BIOS file to the USB port.

  • Page 32: Asus Crashfree Bios 3 Utility

    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 file when it fails or gets corrupted during the updating process. You can restore a corrupted BIOS file using the motherboard support DVD or a USB flash drive that contains the updated BIOS file.
  • Page 33 Insert the USB flash drive with the latest BIOS file and BIOS Updater to the USB port. Boot your computer. When the ASUS Logo appears, press <F8> to show the BIOS Boot Device Select Menu. Insert the support DVD into the optical drive and select the optical drive as the boot device.
  • Page 34 Ensure to load the BIOS default settings to ensure system compatibility and stability. Select the Load Optimized Defaults item under the Exit menu. Refer to section 2.10 Exit menu for details. • Ensure to connect all SATA hard disk drives after updating the BIOS file if you have disconnected them. ASUS B85M-G...

  • Page 35: Bios Setup Program

    The BIOS setup screens shown in this section are for reference purposes only, and may not exactly match what you see on your screen. • Visit the ASUS website at www.asus.com to download the latest BIOS file for this motherboard. •...

  • Page 36: 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 Exit, then select ASUS EZ Mode or press F7. ASUS B85M-G...

  • Page 37: Menu Bar

    Back button Menu items Menu bar Configuration fields General help Last modified settings Pop-up window Submenu item Navigation keys Quick note Scroll bar Menu bar The menu bar on top of the screen has the following main items: My Favorites For saving the frequently-used system settings and configuration Main For changing the basic system configuration...

  • Page 38: My Favorites

    This button allows you to enter notes of the activities that you have done in BIOS. Last Modified button This button shows the items that you last modified and saved in BIOS Setup. My Favorites MyFavorites is your personal space where you can easily save and access your favorite BIOS items. ASUS B85M-G...

  • Page 39: Main Menu

    Adding items to My Favorites To add frequently-used BIOS items to My Favorites: Use the arrow keys to select an item that you want to add. When using a mouse, hover the pointer to the item. Press <F4> on your keyboard or right-click on your mouse to add the item to My Favorites page.

  • Page 40: Administrator Password

    Select the User Password item and press <Enter>. From the Enter Current Password box, key in the current password, then press <Enter>. From the Create New Password box, key in a new password, then press <Enter>. Confirm the password when prompted. ASUS B85M-G 2-11...

  • Page 41: Ai Tweaker Menu

    To clear the user password, follow the same steps as in changing a user password, but press <Enter> when prompted to create/confirm the password. After you clear the password, the User Password item on top of the screen shows Not Installed. Ai Tweaker menu The Ai Tweaker menu items allow you to configure overclocking-related items.
  • Page 42 Memory Profile (X.M.P.) Technology, select this item to set the profiles supported by your memory modules for optimizing the system performance. 2.5.2 ASUS MultiCore Enhancement [Enabled] [Enabled] Default set to [Enabled] for maximum performance under XMP/Manual/ User-defined memory frequency mode.
  • Page 43 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 Turbo Ratio setting or manually assign a 1-Core Limit value, which should be higher than or equal to the 2-Core Ratio Limit. 2-/3-/4-Core Ratio Limit [Auto] These items become configurable only when you set the CPU Core Ratio item to [Per Core].

  • Page 44: Dram Timing Control

    Configuration options: [Auto] [1 DRAM Clock] – [15 DRAM Clock] DRAM CKE Minimum pulse width [Auto] Configuration options: [Auto] [1 DRAM Clock] – [15 DRAM Clock] DRAM CAS# Write to Latency [Auto] Configuration options: [Auto] [1 DRAM Clock] – [31 DRAM Clock] ASUS B85M-G 2-15...
  • Page 45 RTL IOL control DRAM RTL initial Value [Auto] Configuration options: [Auto] [1 DRAM Clock] – [63 DRAM Clock] DRAM RTL (CHA) [Auto] Configuration options: [Auto] [1 DRAM Clock] – [63 DRAM Clock] DRAM RTL (CHB) [Auto] Configuration options: [Auto] [1 DRAM Clock] – [63 DRAM Clock] DRAM IO-L (CHA) [Auto] Configuration options: [Auto] [Delay 1 Clock] - [Delay 15 Clock] DRAM IO-L (CHB) [Auto]...
  • Page 46 Channel B DIMM Control [Enable Bot...] Configuration options: [Enable Both DIMMS] [Disable DIMM0] [Disable DIMM1] [Disable Both DIMMS] Scrambler Setting [Optimized ...] Configuration options: [Optimized (ASUS)] [Default (MRC)] 2.5.12 DIGI+ VRM CPU Load-Line Calibration [Auto] Load-line is defined by Intel VRM specification and affects CPU voltage. The CPU working voltage will decrease proportionally to CPU loading.

  • Page 47: Cpu Power Management

    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. CPU Current Capability [Auto] Allows you to configure the total power range, and extends the overclocking frequency range simultaneously.
  • Page 48 Power Saving Level 1 Threshhold [Auto] Allows you to set the power saving level 1 threshhold. Use the <+> and <-> keys to adjust the value. Power Saving Level 2 Threshhold [Auto] Allows you to set the power saving level 2 threshhold. ASUS B85M-G 2-19...
  • Page 49 Use the <+> and <-> keys to adjust the value. Power Saving Level 3 Threshhold [Auto] Allows you to set the power saving level 3 threshhold. Use the <+> and <-> keys to adjust the value. 2.5.14 Extreme OV [Disabled] By default, this item is set to [Disabled] and helps provide over voltage protection for the CPU.
  • Page 50 This item appears only when you set the CPU Graphics Voltage to [Adaptive Mode] and allows you to set the additional turbo mode CPU graphics voltage. The values range from 0.001V to 1.920V with a 0.001V interval. ASUS B85M-G 2-21...
  • Page 51 Total Adaptive Mode CPU Graphics Voltage [Auto] This item appears only when you set the CPU Graphics Voltage to [Adaptive Mode] and allows you to set the total adaptive mode CPU graphics voltage. The values range from 0.001V to 1.920V with a 0.001V interval. 2.5.18 CPU System Agent Voltage Offset Mode Sign [+] This item allows you to set the CPU system agent voltage offset mode sign.

  • Page 52: 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 field values can cause the system to malfunction. ASUS B85M-G 2-23...

  • Page 53: Cpu Configuration

    2.6.1 CPU Configuration 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. [Disabled] Disables the CPU thermal monitor function.

  • Page 54: Cpu Power Management Configuration

    Allows you to choose short or long latency for C6. Configuration options: [Short] [Long] Package C State Support [Auto] Allows you to disable or enable the whole C-State package support. Configuration options: [Auto] [Enabled] [C0/C1] [C2] [C3] [C6] [CPU C7] [CPU C7s] ASUS B85M-G 2-25...

  • Page 55: Pch Configuration

    2.6.2 PCH Configuration PCI Express Configuration DMI Link ASPM Control [Auto] Allows you to control the Active State Power Managemennt on both NB and SB side of the DMI Link. Configuration options: [Auto] [Enabled] [Disabled] ASPM Support [Disabled] Allows you to set the ASPM support. Configuration options: [Disabled] [Auto] [L0s] [L1] L0sL1].

  • Page 56: Sata Configuration

    Allows you to enable or disable VT-d function on MCH. Configuration options: [Enabled] [Disabled] CPU Audio Device [Enabled] Allows you to enable or disable CPU SA Audio Device. Configuration options: [Enabled] [Disabled] DVI Port Audio [Disabled] Allows you to enable or disable the DVI port. Configuration options: [Enabled] [Disabled] ASUS B85M-G 2-27...

  • Page 57: Graphics Configuration

    Graphics Configuration 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. Configuration options: [Auto] [IGPU] [PCIE] iGPU Memory [Auto] Allows you to select the amount of system memory allocated to DVMT 5.0 used by the iGPU.

  • Page 58: Usb Configuration

    Allows you to enable or disable PCIE express native power management. Configuration options: [Enabled] [Disabled] Native ASPM [Disabled] The item appears only when you set the previous item to [Enabled] and allows you to enable or disable ASPM. Configuration options: [Enabled] [Disabled] ASUS B85M-G 2-29...

  • Page 59: Onboard Devices Configuration

    2.6.7 Onboard Devices Configuration 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]. Front Panel Type [HD] Allows you to set the front panel audio connector (AAFP) mode to legacy AC’97 or high- definition audio depending on the audio standard that the front panel audio module supports.

  • Page 60: Apm

    Enables Ring to generate a wake event. Power On By RTC [Disabled] [Disabled] Disables RTC to generate a wake event. [Enabled] When set to [Enabled], the items RTC Alarm Date (Days) and Hour/ Minute/Second will become user-configurable with set values. ASUS B85M-G 2-31...

  • Page 61: Monitor Menu

    2.6.9 Network Stack Network Stack [Disabled] This item allows user to disable or enable the UEFI network stack. Configuration options: [Disabled] [Enabled] The following two items appear only when you set the previous item to [Enabled]. Ipv4 PXE Support [Enabled] This item allows user to disable or enable the Ipv4 PXE Boot support.
  • Page 62 Use the <+> and <-> keys to adjust the maximum CPU fan duty cycle. The values range from 20% to 100%. When the CPU temperature reaches the upper limit, the CPU fan will operate at the maximum duty cycle. ASUS B85M-G 2-33...
  • Page 63 CPU Lower Temperature [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%. When the CPU temperature is under the lower limit, the CPU fan will operate at the minimum duty cycle.

  • Page 64: Boot Menu

    POST time. [Full Initialization] All USB devices will be available during POST. This process will extend the POST time. [Partial Initialization] For a faster POST time, only the USB ports with keyboard and mouse connections will be detected. ASUS B85M-G 2-35...
  • Page 65 Display the boot logo during POST. [Disabled] Hide the logo during POST. Set this item to [Enabled] to use the ASUS MyLogo 2™ feature. Boot Logo Size Control [Auto] This item appears only when you set Boot Logo Display to [Enabled] and allows you to adjust the boot logo size.
  • Page 66 Boot from Storage Devices [Legacy OpROM first] Allows you to select the type of storage devices that you want to launch. Configuration options: [Both, Legacy OpROM first] [Both, UEFI first] [Legacy OpROM first] [UEFI driver first] [Ignore] ASUS B85M-G 2-37...

  • Page 67: Secure Boot

    Boot from PCIe/PCI Expansion Devices [Legacy OpROM first] Allows you to select the type of PCIe/PCI expansion devices that you want to launch. Configuration options: [Legacy OpROM first] [UEFI driver first] 2.8.9 Secure Boot Allows you to configure the Windows Secure Boot settings and manage its keys to protect ®...
  • Page 68 Append DBX from file Allows you to load the additional DBX from a storage device so that more db’s images cannot be loaded. The DBX file must be formatted as a UEFI variable structure with time-based authenticated variable. ASUS B85M-G 2-39...

  • Page 69: Boot Option Priorities

    • To select the boot device during system startup, press <F8> when ASUS Logo appears. • To access Windows OS in Safe Mode, do any of the following: •...

  • Page 70: Tools Menu

    <Enter> to display the submenu. 2.9.1 ASUS EZ Flash 2 Utility Allows you to run ASUS EZ Flash 2. Press [Enter] to launch the ASUS EZ Flash 2 screen. For more details, see section 2.1.2 ASUS EZ Flash 2. 2.9.2 ASUS O.C.

  • Page 71: Exit Menu

    This option allows you to exit the Setup program without saving your changes. When you select this option or if you press <Esc>, a confirmation window appears. Select Yes to discard changes and exit. ASUS EZ Mode This option allows you to enter the EZ Mode screen. Launch EFI Shell from filesystem device This option allows you to attempt to launch the EFI Shell application (shellx64.efi) from one of...

  • Page 72: Appendices

    Cet appareil est conforme aux normes CNR exemptes de licence d’Industrie Canada. Le fonctionnement est soumis aux deux conditions suivantes : (1) cet appareil ne doit pas provoquer d’interférences et (2) cet appareil doit accepter toute interférence, y compris celles susceptibles de provoquer un fonctionnement non souhaité de l’appareil. B85M-G...

  • Page 73: Canadian Department Of Communications Statement

    ASUS Recycling/Takeback Services ASUS recycling and takeback programs come from our commitment to the highest standards for protecting our environment. We believe in providing solutions for you to be able to responsibly recycle our products, batteries, other components as well as the packaging materials.

  • Page 74: Asus Contact Information

    +1-812-282-3777 +1-510-608-4555 Web site usa.asus.com Technical Support Telephone +1-812-282-2787 Support fax +1-812-284-0883 Online support support.asus.com ASUS COMPUTER GmbH (Germany and Austria) Address Harkort Str. 21-23, D-40880 Ratingen, Germany +49-2102-959911 Web site www.asus.de Online contact www.asus.de/sales Technical Support Telephone +49-1805-010923* Support Fax...
  • Page 75 Appendices...

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