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Desktop PC
K20DA / A20DA / F20DA
K31DA / A31DA / F31DA
K31DAG / A31DAG / F31DAG

User Guide

K20DA / A20DA / F20DA
K31DA / A31DA / F31DA
K31DAG / A31DAG / F31DAG

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   Summary of Contents for Asus K20DA

  • Page 1: User Guide

    Desktop PC K20DA / A20DA / F20DA K31DA / A31DA / F31DA K31DAG / A31DAG / F31DAG User Guide K20DA / A20DA / F20DA K31DA / A31DA / F31DA K31DAG / A31DAG / F31DAG...
  • 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 Notices ..............................5 Safety information ........................... 9 Conventions used in this guide....................10 Where to find more information ....................10 Package contents ...........................11 Chapter 1: Getting started Welcome! ............................13 Getting to know your computer ....................13 Setting up your computer......................20 Turning your computer ON/OFF ....................25 Chapter 2: Connecting devices to your computer Connecting a USB storage device ....................27...
  • Page 4 Contents Entering the BIOS Setup ......................66 Recovering your system .......................67 ASUS contact information ASUS contact information ......................70...
  • Page 5: Notices

    Notices 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. Please go to http://csr.asus.com/english/Takeback.htm for the detailed recycling information in different regions.
  • Page 6: Canadian Department Of Communications Statement

    Avertissement relatif aux batteries Lithium-Ion MISE EN GARDE: Danger d’explosion si la pile n’est pas remplacée correctement. Remplacer uniquement avec une pile de type semblable ou équivalent, recommandée par le fabricant. Mettez au rebut les batteries usagées conformément aux instructions du fabricant.
  • Page 7: Installation Site

    VCCI: Japan Compliance Statement VCCI Class B Statement This is a Class B product based on the standard of the VCCI Council. If this is used near a radio or television receiver, it may cause radio interference. Install and use equipment according to the instruction manual.
  • Page 8 All ASUS products with the ENERGY STAR logo comply with the ENERGY STAR standard, and the power management feature is enabled by default. The monitor and computer are automatically set to sleep after 10 and 30 minutes of user inactivity.
  • Page 9: Safety Information

    Safety information Disconnect the AC power and peripherals before cleaning. Wipe the Desktop PC using a clean cellulose sponge or chamois cloth dampened with solution of nonabrasive detergent and a few drops of warm water then remove any extra moisture with a dry cloth. DO NOT place on uneven or unstable work surfaces.
  • Page 10: Conventions Used In This Guide

    Where to find more information 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 website www.asus.com. ASUS Local Technical Support Visit ASUS website at http://support.asus.com/contact for the contact information of local...
  • Page 11: Package Contents

    Package contents ASUS Desktop PC Keyboard x1 Mouse x1 Power cord x1 Power adapter x1 Installation Guide x1 Warranty Card x1 Dipole antenna x1 (optional) / Antenna x 1 (optional) DVD/SDVD/RDVD x1 (optional) • If any of the above items is damaged or missing, contact your retailer. • The illustrated items above are for reference only. Actual product specifications may vary with different models.
  • Page 13: Chapter 1: Getting Started

    Getting to know your computer Illustrations are for reference only. The ports, their locations and the chassis color vary with different models. ASUS K20DA / A20DA / F20DA / K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG...
  • Page 14: Front Panel

    • 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 a faster and better performance from your USB 3.0 devices. Headphone port. This port connects to a headphone or speaker. Supported by ASUS Audio Wizard. MultiMediaCard(MMC) / xD-Picture (XD) / Secure Digital™ (SD) / High Capacity Secure Digital™(SDHC) / Memory Stick Pro™(MS/PRO) card slot. Insert a supported memory card into this slot.
  • Page 15 Optical disk drive eject button. Press this button to eject the optical disk drive tray. Optical disk drive bay. There is an optical disk drive in this bay. ASUS K20DA / A20DA / F20DA / K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG...
  • Page 16: Rear Panel

    Rear panel K20DA / A20DA / F20DA Line In port (light blue). This port connects to a tape, CD, DVD player, or other audio sources. Line Out port (lime). This port connects to a headphone or speaker. In a 4.1 or 5.1-channel configuration, the function of this port becomes Front Speaker Out.
  • Page 17 ASUS Graphics Card (on selected models only). The display output ports on this optional ASUS Graphics Card may vary with different models. ASUS K20DA / A20DA / F20DA / K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG...
  • Page 18 K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG DC-In port. Plug the power adapter into this port. • DO NOT connect a keyboard / mouse to the USB 3.0 port when installing a 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 the 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 a faster and better performance from your USB 3.0 devices. HDMI port.
  • Page 19 DO NOT block the air vents on the chassis. Always provide proper ventilation for your computer. VGA port. This port is for VGA-compatible devices such as a VGA monitor. ASUS K20DA / A20DA / F20DA / K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG...
  • Page 20: Setting Up Your Computer

    Connecting an external monitor Using the ASUS Graphics Card (on selected models only) Connect your monitor to the display output port on the discrete ASUS Graphics Card. To connect an external monitor using the ASUS Graphics Card: Connect a monitor to a display output port on the ASUS Graphics Card.
  • Page 21 K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG ASUS K20DA / A20DA / F20DA / K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG...
  • Page 22 Connect a VGA monitor to the VGA port, or a DVI-D monitor to the DVI-D port, or an HDMI monitor to the HDMI port on the rear panel of your computer. Plug the monitor to a power source. K20DA / A20DA / F20DA K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG Chapter 1: Getting started...
  • Page 23 Connect a USB keyboard and a USB mouse to the USB ports on the rear panel of your computer. K20DA / A20DA / F20DA K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG ASUS K20DA / A20DA / F20DA / K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG...
  • Page 24: Connecting The Power Cord

    Connect one end of the power cord to the power connector on the rear panel of your computer and the other end to a power source. K20DA / A20DA / F20DA K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG...
  • Page 25: Turning Your Computer On/off

    For details on shutting down your Desktop PC, refer to the Windows 8.1 User Manual, which ® can be found in this manual. ASUS K20DA / A20DA / F20DA / K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG...
  • Page 26 Chapter 1: Getting started...
  • Page 27: Chapter 2: Connecting Devices To Your Computer

    Setup. Refer to the Configuring the USB ports using the BIOS section in Chapter 3 of this user guide for details. Front panel K20DA / A20DA / F20DA K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG ASUS K20DA / A20DA / F20DA / K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG...
  • Page 28 Rear panel K20DA / A20DA / F20DA K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG To remove a USB storage device: From the Start screen, click Desktop to launch the Desktop Mode. Click from the taskbar, then click Eject [Name of USB Drive].
  • Page 29: Connecting Microphone And Speakers

    5.1-channel stereo speakers. Connecting Headphone and Mic K20DA / A20DA / F20DA K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG ASUS K20DA / A20DA / F20DA / K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG...
  • Page 30 Connecting 2.1-channel Speakers Connecting 4.1-channel Speakers Connecting 5.1-channel Speakers Chapter 2: Connecting devices to your computer...
  • Page 31: Connecting Multiple External Displays

    For some graphic cards, only the monitor that is set to be the primary display has display during POST. The dual display function works only under Windows. ASUS K20DA / A20DA / F20DA / K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG...
  • Page 32 Turn on your computer. Do any of the following to open the Screen Resolution setting screen: From the Start screen a) Launch the All Apps screen and pin Control Panel on the Start screen. For details, refer to Pinning an app on the Start screen from the section Working with Windows®...
  • Page 33: Connecting An Hdtv

    Connect a High Definition TV (HDTV) to the HDMI port of your computer. • You need an HDMI cable to connect the HDTV and the computer. The HDMI cable is purchased separately. • To get the best display performance, ensure that your HDMI cable is less than 15 meters. K20DA / A20DA / F20DA K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG ASUS K20DA / A20DA / F20DA / K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG...
  • Page 34 Chapter 2: Connecting devices to your computer...
  • Page 35: Chapter 3: Using Your Computer

    • Keep the mouse close to the keyboard, and if necessary, use a wrist rest for support to reduce the pressure on your wrists while typing. • Use your Desktop PC in a comfortably-lit area, and keep it away from sources of glare such as windows and straight sunlight. • Take regular mini-breaks from using your Desktop PC. ASUS K20DA / A20DA / F20DA / K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG...
  • Page 36: Using The Memory Card Reader

    Using the memory card reader K20DA / A20DA / F20DA Digital cameras and other digital imaging devices use memory cards to store digital picture or media files. The built-in memory card reader on the front panel of your system allows you to read from and write to different memory card drives.
  • Page 37: Using The Optical Drive

    Start screen’s thumbnail. From the popup menu, click File Explorer to open the Computer screen. Remove the disc from the disc tray. ASUS K20DA / A20DA / F20DA / K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG...
  • Page 38 Chapter 3: Using your computer...
  • Page 39: Chapter 4: Connecting To The Internet

    K20DA / A20DA / F20DA Modem RJ-45 cable K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG Modem RJ-45 cable ASUS K20DA / A20DA / F20DA / K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG...
  • Page 40 Connect one end of an RJ-45 cable to the LAN (RJ-45) port on the rear panel of your computer and the other end to your LAN. K20DA / A20DA / F20DA RJ-45 cable K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG RJ-45 cable Turn on your computer.
  • Page 41 From the Open Network and Sharing Center screen, click Change Adapter settings. Right-click on your LAN and select Properties. Click Internet Protocol Version 4(TCP/ IPv4) and click Properties. ASUS K20DA / A20DA / F20DA / K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG...
  • Page 42 Click Obtain an IP address automatically and click OK. Continue to the next steps if you are using PPPoE connection. Return to the Network and Sharing Center and then click Set up a new connection or network. Select Connect to the Internet and click Next.
  • Page 43: Configuring A Static Ip Network Connection

    Enter the IP address, Subnet mask and Gateway from your service provider. If needed, enter the preferred DNS Server address and alternative address. When done, click OK. ASUS K20DA / A20DA / F20DA / K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG...
  • Page 44 Chapter 4: Connecting to the Internet...
  • Page 45: Chapter 5: Troubleshooting

    • Connect the external antennas (optional) to the antenna connectors on the ASUS WLAN Card and place the antennas on top of your computer chassis for the best wireless performance. ASUS K20DA / A20DA / F20DA / K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG...
  • Page 46 The arrow keys on the number key pad are not working. Check if the Number Lock LED is off. When the Number Lock LED is on, the keys on the number key pad are used to input numbers only. Press the Number Lock key to turn the LED off if you want to use the arrow keys on the number key pad.
  • Page 47 Right click anywhere on your Desktop Mode screen. When the pop-up menu appears, click Personalize > Display > Change display settings. ASUS K20DA / A20DA / F20DA / K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG...
  • Page 48 My speakers produce no sound. • Ensure that you connect your speakers to the Line out port (lime) on the front panel or the rear panel. • Check if your speak is connected to an electrical source and turned on. • Adjust your speakers’ volume. • Ensure that your computer’s system sounds are not Muted. • If it is muted, the volume icon is displayed as . To enable the system sounds, click from the Windows notification area, then click • If it is not muted, click and drag the slider to adjust the volume. •...
  • Page 49 • U se other compatible power cord. PSU (Power supply unit) Contact the ASUS Service Center about problems installing another PSU on your computer. ASUS K20DA / A20DA / F20DA / K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG...
  • Page 50 Ensure the LAN LED is on. If not, try LAN cable problems another LAN cable. If it still does not work, contact the ASUS service center. Your computer is not Ensure that your computer is properly Cannot access the properly connected to a connected to a router or hub.
  • Page 51 Move your computer to an area with air ventilation for your better air flow. computer. Incompatible softwares are Reinstall the OS and reinstall installed. compatible softwares. ASUS K20DA / A20DA / F20DA / K31DA / A31DA / F31DA / K31DAG / A31DAG / F31DAG...
  • Page 52 • C ontact the ASUS Service Center for assistance. If the problem still persists, refer to your Desktop PC’s warranty card and contact the ASUS Service Center. Visit the ASUS Support site at http://support.asus.com for the service center information. Chapter 5: Troubleshooting...
  • Page 53: User Manual

    ASUS Desktop PC Windows ® User Manual Appendix Windows 8.1 User Manual ® E8607 First Edition August 2013 Copyright © ASUSTeK Computer Inc. All Rights Reserved...
  • Page 55: Starting For The First Time

    Windows®8.1 functionalities. Windows 8.1 lock screen ® The Windows®8.1 lock screen may appear when your Desktop PC enters the Windows®8.1 operating system. To proceed, tap on the lock screen or press any key on your Desktop PC's keyboard. ASUS Desktop PC...
  • Page 56: Using The Windows Ui

    Using the Windows ® The Windows ® User Interface (UI) is the tile-based display used in Windows ® 8.1. It includes the following features you can use while working on your Desktop PC. Start screen The Start screen appears after successfully signing in to your user account. It helps organize all the programs and applications you need in just one place.
  • Page 57 Onscreen hotspots allow you to launch programs and access the settings of your Desktop PC. The functions in these hotspots can be activated using your mouse. Hotspots on a running app Hotspots on the Start screen Refer to the next page for the Hotspots’ functions. ASUS Desktop PC...
  • Page 58 Hotspot Action upper left corner Hover your mouse pointer then click on the recent app’s thumbnail to go back to that app. Move your mouse pointer down to display all the running apps. From a running app screen: lower left corner Hover your mouse pointer on the lower left corner then to go back to the Start screen.
  • Page 59: Working With Windows Apps

    Move your mouse pointer on the top side of the launched app then wait for the pointer to change to a hand icon. • Drag then drop the app to the bottom of the screen to close it. • From the running app’s screen, press <Alt> + <F4>. ASUS Desktop PC...
  • Page 60 Accessing the All Apps screen From the All Apps screen, you can configure an apps settings or pin an app to the Start screen or to the Desktop mode taskbar. Launching the All Apps screen • On the Start screen, click • From the Start screen, press <Tab>, then press <Enter> on your keyboard. Pinning an app on the Start screen Launch the All Apps screen.
  • Page 61: Charms Bar

    When called out, the Charms bar initially appears as a set of white icons. The image above shows how the Charms bar looks like once activated. Use your Desktop PC’s mouse or keyboard to launch the Charms bar. • Move your mouse pointer on the upper or lower right corner of the screen. • Press + <C>. ASUS Desktop PC...
  • Page 62 Inside the Charms bar Search This charm allows you to look for files, applications, or programs in your Desktop PC. Share This charm allows you to share applications via social networking sites or email. Start This charm reverts the display back to the Start screen. From the Start screen, you can also use this to revert back to a recently opened app.
  • Page 63: Snap Feature

    Once the pointer changes to a hand icon, drag and drop the app to the right or left side of the display panel. Using your keyboard • Launch an app then press + < . > + left or right key to place the first app on the left or right side of the display panel. ASUS Desktop PC...
  • Page 64: Other Keyboard Shortcuts

    Other keyboard shortcuts Using your keyboard, you can also use the following shortcuts to help you launch applications and navigate Windows 8.1. ® Switches between the Start screen and the last running app. Launches the desktop. + <D> Launches the Computer window on the desktop. + <E>...
  • Page 65: Turning Your Desktop Pc Off

    From the Charms bar, click Settings > Power > Shut down to do a normal shutdown. • • From the login screen, click Power > Shutdown. • If your Desktop PC is unresponsive, press and hold the power button for at least four (4) seconds until your Desktop PC turns off. Putting your Desktop PC to sleep To put your Desktop PC on Sleep mode, press the Power button once. ASUS Desktop PC...
  • Page 66: Entering The Bios Setup

    Entering the BIOS Setup BIOS (Basic Input and Output System) stores system hardware settings that are needed for system startup in the Desktop PC. In normal circumstances, the default BIOS settings apply to most conditions to ensure optimal performance. Do not change the default BIOS settings except in the following circumstances: •...
  • Page 67: Recovering Your System

    To create a USB recovery drive: Launch the Control Panel from the All Apps screen. For details, refer to Launching the All Apps screen under Working with Windows® apps. From the Control Panel’s System and Security, click Find and fix problems. ASUS Desktop PC...
  • Page 68 Click Recovery > Create a recovery drive. Click Copy the recovery partition from the PC to the recovery drive and then click Next. Select the USB storage device where you want to copy the recovery files. Click Next. Click Create. Wait for a while for the process to complete.
  • Page 69: Removing Everything And Reinstalling Windows

    This process may take a while to complete. Launch the Charm bar. Click Settings > PC Settings > Update and recovery > Recovery. Scroll down to view the Remove everything and reinstall Windows option. Under this option, click Get Started. Follow the onscreen instructions to complete the reinstallation and reset process. ASUS Desktop PC...
  • Page 70: Asus Contact Information

    +1-510-739-3777 Fax +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 Fax +49-2102-959931 Web site asus.com/de Online contact eu-rma.asus.com/sales Technical Support Telephone (Component) +49-2102-5789555...

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