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A55BM-K

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    A55BM-K...

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    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 A55BM-K specifications summary ................vi Product introduction Before you proceed ..................1-1 Motherboard overview ................. 1-2 Accelerated Processing Unit (APU) ............1-4 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

    Supports AMD Memory Profile (AMP) memory • The maximum 32GB memory capacity can be supported with 16GB or above DIMMs. ASUS will update the memory QVL once the DIMMs are available in the market. • Hyper DIMM support is subject to the physical characteristics of individual APUs.

  • Page 7: Asus Exclusive Features

    - ASUS AI Charger - ASUS AI Suite III - ASUS Anti-Surge Protection ASUS Quiet Thermal Solution - ASUS Fanless Design: Stylish Heatsink Solution - ASUS Fan Xpert ASUS EZ DIY - ASUS UEFI BIOS EZ Mode - ASUS CrashFree BIOS 3 - ASUS EZ Flash 2 - ASUS MyLogo 2™...

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    64 Mb Flash ROM, UEFI AMI BIOS, PnP, DMI 2.0, WfM 2.0, SM BIOS 2.7, ACPI 2.0a, Multi-language BIOS, ASUS EZ Flash 2, ASUS CrashFreen BIOS 3, F12 Printscreen function, F3 Shortcut function and ASUS DRAM SPD (Serial Presence Detect) memory information...

  • Page 9: Product Introduction

    ON, in sleep mode, or in soft-off mode. This is a reminder that you should shut down the system and unplug the power cable before removing or plugging in any motherboard component. The illustration below shows the location of the onboard LED. SB_PWR A55BM-K Standby Power Powered Off A55BM-K Onboard LED ASUS A55BM-K...

  • Page 10: Motherboard Overview

    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. Place this side towards the rear of the chassis A55BM-K Chapter 1: Product introduction...

  • Page 11: Motherboard Layout

    1-11 11. USB device wake-up (3-pin USBPWF) 1-12 12. Digital audio connector (4-1 pin SPDIF_OUT) 1-17 13. Serial port connector (10-1 pin COM) 1-20 14. Standby power LED (SB_PWR) 15. Front panel audio connector (10-1 pin AAFP) 1-19 ASUS A55BM-K...

  • Page 12: Accelerated Processing Unit (apu)

    Radeon™ HD 7000/8000 series graphics. ® A55BM-K A55BM-K CPU socket FM2+ Ensure that you use an APU designed for the FM2+ socket. The APU fits in only one correct orientation. DO NOT force the APU into the socket to prevent bending the pins and damaging the APU! 1.3.1...

  • Page 13: Apu Heatsink And Fan Assembly Installation

    1.3.2 APU heatsink and fan assembly installation Apply the Thermal Interface Material to the APU heatsink and APU before you install the heatsink and fan if necessary. To install the APU heatsink and fan assembly ASUS A55BM-K...

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    To uninstall the APU heatsink and fan assembly Chapter 1: Product introduction...

  • Page 15: System Memory

    DDR2 DIMM socket. DDR3 modules are developed for better performance with less power consumption. The figure illustrates the location of the DDR3 DIMM sockets: Channel Sockets Channel A DIMM_A1 Channel B DIMM_B1 A55BM-K A55BM-K 240-pin DDR3 DIMM sockets ASUS A55BM-K...

  • Page 16: Memory Configurations

    • The maximum 32GB memory capacity can be supported with 16GB or above DIMMs. ASUS will update the memory QVL once the DIMMs are available in the market. • 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.

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    1.4.3 Installing a DIMM To remove a DIMM ASUS A55BM-K...

  • Page 18: Expansion Slots

    Expansion 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.

  • Page 19: Jumpers

    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. CLRTC A55BM-K Normal Clear RTC (Default) A55BM-K Clear RTC RAM ASUS A55BM-K 1-11...

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    DRAM in slow refresh, power supply in reduced power mode). USBPWF A55BM-K +5VSB (Default) A55BM-K 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 21: Connectors

    1A on the +5VSB lead, and a corresponding setting in the BIOS. KB_USBPWB A55BM-K +5VSB (Default) A55BM-K Keyboard and USB device wake up Connectors 1.7.1 Rear panel connectors PS/2 Mouse port (green). This port is for a PS/2 mouse.

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    LAN port LED indications ACT/LINK SPEED Activity/Link LED Speed LED Status Description Status Description No link 10Mbps connection Orange Linked ORANGE 100Mbps connection LAN port Orange (Blinking) Data activity GREEN 1Gbps connection Orange (Blinking Ready to wake up then steady) from S5 mode Line In port (light blue).

  • Page 23: Internal Connectors

    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. • The CPU_FAN and CHA_FAN connectors support the ASUS Fan Xpert feature. ASUS A55BM-K 1-15...

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    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. 1-16 Chapter 1: Product introduction...

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    RSATA_TXN4 RSATA_TXP4 A55BM-K A55BM-K SATA 3.0Gb/s connectors • These connectors are set to AHCI mode by default. If you intend to create a Serial ATA RAID set using these connectors, set the type of the SATA connectors in the BIOS to [RAID].

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    PIN 1 A55BM-K +HDD_LED RESET A55BM-K 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.

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    A55BM-K HD-audio-compliant Legacy AC’97 pin definition compliant definition A55BM-K Front panel audio connector • We recommend that you connect a high-definition front panel audio module to this connector to avail of the motherboard 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 to [HD].

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    This connector is for a serial (COM) port. Connect the serial port module cable to this connector, then install the module to a slot opening at the back of the system chassis. PIN 1 A55BM-K A55BM-K Serial port connectors The COM module is purchased separately. 1-20 Chapter 1: Product introduction...

  • 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 contains the unique features of ASUS motherboard. Click Drivers, Utilities, Make Disk, Manual, Contact and Specials tabs to display their respective menus.

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    1-22 Chapter 1: Product introduction...

  • Page 31: 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 32: Asus Ez Flash

    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: Recovering The Bios

    2.1.4 ASUS BIOS Updater The ASUS BIOS Updater allows you to update BIOS in DOS environment. This utility also allows you to copy the current BIOS file that you can use as a backup when the BIOS fails or gets corrupted during the updating process.

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    Insert the DOS-bootable USB flash drive with the latest BIOS file and BIOS Updater to your computer’s USB port. Boot your computer. When the ASUS Logo appears, press <F8> to show the BIOS Boot Device Select Menu. Select the USB flash drive as the boot device. The DOS screen appears.

  • Page 35: Bios Setup Program

    • Press the reset button on the system chassis. • Press the power button to turn the system off then back on. Do this option only if you failed to enter BIOS Setup using the first two options. ASUS A55BM-K...

  • Page 36: Bios Menu Screen

    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. •...

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    Power Saving mode • 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. ASUS A55BM-K...

  • Page 38: Advanced Mode

    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. Back button Menu items...

  • Page 39: My Favorites

    Favorites page. You cannot add the following items to My Favorites: • Items with submenu options • User-configurable items such as language and boot device order • Configuration items such as Memory SPD Information, system time and date ASUS A55BM-K...

  • Page 40: Main Menu

    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. •...

  • Page 41: Ai Tweaker Menu

    Be cautious when changing the settings of the Ai Tweaker menu items. Incorrect field values can cause the system to malfunction. The configuration options for this section vary depending on the CPU and DIMM model you installed on the motherboard. Scroll down to display the other items. ASUS A55BM-K 2-11...

  • Page 42: Advanced Menu

    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. Monitor menu The Monitor menu displays the system temperature/power status, and allows you to change the fan settings.

  • Page 43: Boot Menu

    Boot menu The Boot menu items allow you to change the system boot options. Scroll down to display the other items. ASUS A55BM-K 2-13...

  • Page 44: Tools Menu

    Tools menu The Tools menu items allow you to configure options for special functions. Select an item then press <Enter> to display the submenu. 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.

  • Page 45: Appendices

    The use of shielded cables for connection of the monitor to the graphics card is required to assure compliance with FCC regulations. Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment. A55BM-K...

  • Page 46: Canadian Department Of Communications Statement

    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). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.

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    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 48: Asus Contact Information

    +1-510-739-3777 +1-510-608-4555 Web site http://usa.asus.com Technical Support Telephone +1-812-284-0883 General support +1-812-282-2787 Online support http://support.asus.com/techserv/techserv.aspx ASUS COMPUTER GmbH (Germany and Austria) Address Harkort Str. 21-23, D-40880 Ratingen, Germany +49-2102-959931 Web site http://www.asus.com/de Online contact http://eu-rma.asus.com/sales Technical Support Telephone +49-2102-5789555 Support Fax...

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    A55BM-K...

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