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Asus A55-C User Manual

A55-c user's manual.
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  • Page 1 A55-C...
  • 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 ...................... vi About this guide ......................vii A55-C specifications summary ................. ix Package contents ....................... xi Product introduction Special features .................... 1-1 1.1.1 Product highlights ................1-1 1.1.2 ASUS Exclusive Features ............... 1-1 Before you proceed ..................1-3 Motherboard overview .................
  • Page 4 Managing and updating your BIOS ............. 2-1 2.1.1 ASUS Update utility ................ 2-1 2.1.2 ASUS EZ Flash 2 ................2-2 2.1.3 ASUS CrashFree BIOS 3 utility ............2-3 2.1.4 ASUS BIOS Updater ............... 2-4 BIOS setup program ..................2-6 Main menu ....................2-10 2.3.1 System Language [English] ............
  • Page 5 2.7.11 Boot Option Priorities ..............2-26 2.7.12 Boot Override ................2-26 Tools menu ....................2-27 2.8.1 ASUS EZ Flash 2 Utility ..............2-27 2.8.2 ASUS SPD Information ..............2-27 2.8.3 ASUS O.C. Profile ................. 2-27 Exit menu ....................2-28 Appendices Notices ........................
  • Page 6: 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 7: About 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 8: Conventions Used In This Guide

    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 trying to complete a task. CAUTION: Information to prevent damage to the components when trying to complete a task IMPORTANT: Instructions that you MUST follow to complete a task.
  • Page 9: A55-c Specifications Summary

    Dual-channel memory architecture • 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. • Refer to for the latest Memory QVL (Qualified Vendors List).
  • Page 10 A55-C specifications summary ASUS unique ASUS Exclusive Features features - ASUS iCafe Memory Anti-theft - ASUS AI Suite II - AI Charger - ASUS UEFI BIOS ASUS Quiet Thermal Solution - Stylish heatsink solution - ASUS Q-Fan ASUS EZ DIY...
  • Page 11: Package Contents

    USB910 USB78 F_PANEL USBPW7~10 SPEAKER CHASSIS CLRTC 2 x Serial ATA 3.0 Gb/s ASUS A55-C motherboard cables 1 x I/O Shield User Manual Support DVD • If any of the above items is damaged or missing, contact your retailer. •...
  • Page 13: Product Introduction

    ASUS Exclusive Features ASUS UEFI BIOS (EZ Mode) ASUS UEFI BIOS, a UEFI compliant architecture, offers the first mouse-controlled intuitive graphical BIOS interface that goes beyond the traditional keyboard-only BIOS controls, providing you with more flexibility, convenience, and easier navigation than the traditional BIOS versions.
  • Page 14: Asus Mylogo2

    • The actual charging speed may vary with your USB device. ASUS EZ Flash 2 ASUS EZ Flash 2 is a user-friendly utility that allows you to update the BIOS without using a bootable floppy disk or an OS-based utility.
  • Page 15: Before You Proceed

    • Before you install or remove any component, switch off the ATX power supply and detach its power cord. Failure to do so may cause severe damage to the motherboard, peripherals, or components. ASUS A55-C...
  • Page 16: 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. A55-C Chapter 1: Product introduction...
  • Page 17: Motherboard Layout

  • Page 18: Layout Contents

    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! A55-C A55-C CPU socket FM2 Chapter 1: Product introduction...
  • Page 19: Apu Installation

    1.4.1 APU installation ASUS A55-C...
  • Page 20: Apu Heatsink And Fan Assembly Installation

    1.4.2 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 Chapter 1: Product introduction...
  • Page 21 To uninstall the APU heatsink and fan assembly ASUS A55-C...
  • Page 22: System Memory

    This motherboard does not support DIMMs made up of 512Mb (64MB) chips or less. • 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. Chapter 1: Product introduction 1-10...
  • Page 23 2.4 Ai Tweaker menu for manual memory frequency adjustment. • For system stability, use a more efficient memory cooling system to support a full memory load (2 DIMMs) or overclocking condition. A55-C Motherboard Qualified Vendors Lists (QVL) DDR3-1866 MHz capability DIMM socket Chip Chip...
  • Page 24 DDR3-1600 MHz capability DIMM support Chip Vendors Part No. Size Chip No. Timing Voltage Brand 1DIMM 2DIMMs A-DATA AM2U16BC2P1 A-DATA 3CCD-1509A EL1126T - A-DATA AM2U16BC4P2 A-DATA 3CCD-1509A EL1126T - A-DATA AX3U1600GC4G9-2G(XMP) 8GB(2 x 4GB) 9-9-9-24 1.55V-1.75V A-DATA AX3U1600XC4G79-2X(XMP) 8GB(2 x 4GB) 7-9-7-21 1.55V-1.75V Apacer...
  • Page 26: Memory Configuration

    A*: Supports one (1) module inserted into any slot as Single-channel memory configuration. • B**: Supports two (2) modules inserted into both slots as one pair of a dual-channel memory configuration. Visit the ASUS website at for the latest QVL. Chapter 1: Product introduction 1-14...
  • Page 27: Installing A Dimm

    1.5.3 Installing a DIMM To remove a DIMM ASUS A55-C 1-15...
  • Page 28: 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 29: Irq Assignments For This Motherboard

    – – – – – SATA controller – – – shared – – – – Onboard USB1.0 controller – – shared – – – – – Onboard USB2.0 controller – shared – – – – – – ASUS A55-C 1-17...
  • Page 30: Jumpers

    Normal Clear RTC (Default) A55-C Clear 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 31 Set to +5VSB to wake up from S3 and S4 sleep modes (no power to CPU, DRAM in slow refresh, power supply in reduced power mode). USBPW1~6 +5VSB (Default) USBPW7~10 A55-C +5VSB (Default) A55-C USB device wake up ASUS A55-C 1-19...
  • Page 32: Connectors

    Connectors 1.8.1 Rear panel ports PS/2 Mouse port (green). This port is for a PS/2 mouse. COM port. This port is for pointing devices or other serial devices. LAN (RJ-45) port. This port allows Gigabit connection to a Local Area Network (LAN) through a network hub.
  • Page 33 USB 2.0 ports 5 and 6. These two 4-pin Universal Serial Bus (USB) ports are for USB 2.0/1.1 devices. Video Graphics Adapter (VGA) port. This 15-pin port is for a VGA monitor or other VGA-compatible devices. PS/2 Keyboard port (purple). This port is for a PS/2 keyboard. ASUS A55-C 1-21...
  • Page 34: Internal Connectors

    Rotation A55-C +12V A55-C 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.
  • Page 35 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 A55-C 1-23...
  • Page 36 If you installed Serial ATA hard disk drives, you can create a RAID 0, RAID 1, or RAID 10 configuration through the onboard controller. A55-C A55-C 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].
  • Page 37 PIN 1 A55-C +HD_LED RESET A55-C System panel connector • System power LED (2-pin PLED) 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 38 A55-C HD-audio-compliant Legacy AC’97 pin definition compliant definition A55-C 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].
  • Page 39 The USB 2.0 module is purchased separately. Speaker connector (4-pin SPEAKER) This 4-pin connector is for the chassis-mounted system warning speaker. The speaker allows you to hear system beeps and warnings. SPEAKER A55-C PIN 1 A55-C Speaker Out Connector ASUS A55-C 1-27...
  • Page 40: Software Support

    The contents of the Support DVD are subject to change at any time without notice. Visit the ASUS website at for updates. To run the Support DVD Place the Support DVD into the optical drive.
  • Page 41: Bios Information

    BIOS in the future. Copy the original motherboard BIOS using the ASUS Update utility. 2.1.1 ASUS Update utility The ASUS Update is a utility that allows you to manage, save, and update the motherboard BIOS in Windows environment. ®...
  • Page 42: Asus Ez Flash 2

    Follow the onscreen instructions to complete the updating process. 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
  • Page 43: 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 44: Asus Bios Updater

    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.
  • Page 45: Updating The Bios File

    At the FreeDOS prompt, type bupdater /pc /g and press <Enter>. D:\>bupdater /pc /g The BIOS Updater screen appears as below. ASUSTek BIOS Updater for DOS V1.30 Current ROM Update ROM BOARD: A55-C BOARD: Unknown VER: 0208 VER: Unknown DATE:...
  • Page 46: Bios Setup Program

    BIOS menu screen The BIOS setup program can be used under two modes: EZ Mode and Advanced Mode. You can change modes from the Exit menu or from the Exit/Advanced Mode button in the EZ Mode/Advanced Mode screen. ASUS A55-C...
  • Page 47 EZ Mode By default, the EZ Mode screen appears when you enter the BIOS setup program. The EZ Mode provides you an overview of the basic system information, and allows you to select the display language, system performance mode and boot device priority. To access the Advanced Mode, click Exit/Advanced Mode, then select Advanced Mode or press F7 hot key for the advanced BIOS settings.
  • Page 48: 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. Back button Menu items...
  • Page 49: Menu Items

    Menu items The highlighted item on the menu bar displays the specific items for that menu. For example, selecting Main shows the Main menu items. The other items (Ai Tweaker, Advanced, Monitor, Boot, Tool, and Exit) on the menu bar have their respective menu items.
  • Page 50: Main Menu

    RAM to clear the BIOS password. See section 1.7 Jumpers for information on how to erase the RTC RAM. The Administrator or User Password items on top of the screen show the default • Not Installed. After you set a password, these items show Installed. 2-10 ASUS A55-C...
  • Page 51: Administrator Password

    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 fields in the BIOS setup program. To set an administrator password: Select the Administrator Password item and press <Enter>.
  • Page 52: Ai Tweaker Menu

    This item appears only when The EPU Power Saving Mode is set to [Enabled] and allows you to set power saving mode. Configuration options: [Auto] [Light Power Saving Mode] [Medium Power Saving Mode] [Max Power Saving Mode] 2-12 ASUS A55-C...
  • Page 53: Digi+ Vrm

    Reducing phase number under light system loading to increase VRM efficiency. [Standard] Proceeds phase control depending on the CPU loading. [Optimized] Loads the ASUS optimized phase tuning profile. [Extreme] Proceeds the full phase mode. [Manual Adjustment] Allows manual adjustment.
  • Page 54: Advanced Menu

    Set this item to [Enabled] to show IOMMU Mode. Configuration options: [Enabled] [Disabled] Bank Interleaving [Enabled] Enables or disables Bank Interleaving. Configuration options: [Enabled] [Disabled] Channel Interleaving [Enabled] Enables or disables Channel Interleaving. Configuration options: [Enabled] [Disabled] 2-14 ASUS A55-C...
  • Page 55: Sata Configuration

    2.5.2 SATA Configuration While entering Setup, the BIOS automatically detects the presence of SATA devices. The SATA Port items show Not Present if no SATA device is installed to the corresponding SATA port. OnChip SATA Channel [Enabled] Enables or disables onboard channel SATA port. Configuration options: [Disabled] [Enabled] OnChip SATA Type [IDE] Allows you to set the SATA configuration.
  • Page 56: Usb Configuration

    And the memory size of Internal Graphics Device will keep memory reserved. Configuration options: [Disabled] [Enabled] Primary Video Device [PCIE / PCI Video] Selects the primary display device. Configuration options: [IGFX Video] [PCIE / PCI Video] Integrated Graphics [Auto] Enables the integrated graphics controller. Configuration options: [Auto] [Force] 2-16 ASUS A55-C...
  • Page 57: Onboard Devices Configuration

    2.5.5 Onboard Devices Configuration HD Audio Device [Enabled] [Enabled] Enables the High Definition Audio Controller. [Disabled] Disables the controller. The following two items appear only when you set the HD Audio Device 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 58: Apm

    RTC alarm time (days). When you set the time to zero, the RTC alarms everyday. Use <+> and <-> keys to adjust the time. - Hour / - Minute / - Second Allows you to set the RTC alarm time. Use <+> and <-> keys to adjust the time. 2-18 ASUS A55-C...
  • Page 59: Network Stack

    2.5.7 Network Stack Network Stack [Disabled] This item allows user to disable or enable the UEFI network stack. Configuration options: [Disabled] [Enabled] Ipv4 PXE Support [Enabled] This item appears only when you set the Network Stack item to [Enabled]. When this item is disabled, the IPV4 PXE boot option will not be created.
  • Page 60: Monitor Menu

    Fan Speed Low Limit [200 RPM] This item appears only when you enable the CPU Q-Fan Control feature and allows you to disable or set the CPU fan warning speed. Configuration options: [Ignore] [200RPM] [300 RPM] [400 RPM] [500 RPM] [600 RPM] 2-20 ASUS A55-C...
  • Page 61: Cpu Voltage, 3.3v Voltage, 5v Voltage, 12v Voltage

    Q-Fan Profile [Standard] This item appears only when you enable the CPU Q-Fan Control feature and allows you to set the appropriate performance level of the CPU fan. [Standard] Sets to [Standard] to make the CPU fan automatically adjust depending on the CPU temperature.
  • Page 62: Boot Menu

    Boot menu The Boot menu items allow you to change the system boot options. Scroll down to display the following items: 2-22 ASUS A55-C...
  • Page 63: Fast Boot [enabled]

    [Disabled] Disables the full screen logo display feature. Set this item to [Enabled] to use the ASUS MyLogo 2™ feature. Post Report [5 sec] This item appears only when the Full Screen Logo item is set to [Disabled] and allows you to set the waiting time for the system to display the post report.
  • Page 64: Post Delay Time [3 Sec]

    The following four items appear only when you set Launch CSM to [Enabled]. Boot Device Control [UEFI and Legacy OpROM] Configuration option: [UEFI and Legacy OpRom] [Legacy OpROM only] [UEFI only] Boot from Network Devices [Legacy OpROM first] Configuration option: [Legacy OpROM first] [UEFI driver first] [Ignore] 2-24 ASUS A55-C...
  • Page 65: Secure Boot

    Boot from Storage Devices [Legacy OpRom first] Configuration option: [Both, Legacy OpROM first] [Both, UEFI first] [Legacy OpROM first] [UEFI driver first] [Ignore] Boot from PCIe/PCI Expansion Devices [Legacy OpROM first] Configuration option: [Legacy OpROM first] [UEFI driver first] 2.7.10 Secure Boot This option allows you to configure the Secure Boot related parameters.
  • Page 66: Boot Option Priorities

    • To select the boot device during system startup, press <F8> when ASUS Logo appears. • To access Windows OS in Safe Mode, press <F8> after POST.
  • Page 67: Tools Menu

    <Enter> to display the submenu. 2.8.1 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. 2.8.2...
  • Page 68: 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 UEFI Shell application (shellx64.efi) from one...
  • Page 69: 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. ASUS A55-C...
  • Page 70: 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 71: Asus Contact Information

    +1-812-282-3777 +1-510-608-4555 Web site Technical Support Telephone +1-812-282-2787 Support fax +1-812-284-0883 Online support ASUS COMPUTER GmbH (Germany and Austria) Address Harkort Str. 21-23, D-40880 Ratingen, Germany +49-2102-959911 Web site Online contact Technical Support Telephone +49-1805-010923* Support Fax...
  • Page 72 Appendices...

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