Desktop PC D642MF / D6421SFF User Guide
E15619 First Edition August 2019 Copyright © 2019 ASUSTeK Computer Inc. All Rights Reserved. No part of this manual, including the products and software described in it, may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means, except documentation kept by the purchaser for backup purposes, without the express written permission of ASUSTeK Computer Inc. (“ASUS”).
Contents Notices ........................................................................................................... 4 Safety information........................................................................................... 9 Conventions used in this guide..................................................................... 10 Where to find more information.................................................................... 10 Package contents....................................................
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.
Avertissement relatif aux batteries Lithium ATTENTION ! Danger d’explosion si la batterie n’est pas correctement remplacée. Remplacer uniquement avec une batterie de type semblable ou équivalent, recommandée par le fabricant. Jeter les batteries usagées conformément aux instructions du fabricant. Compliance Statement of Innovation, Science and Economic Development Canada (ISED) This device complies with Innovation, Science, and Economic Development Canada licence exempt RSS standard(s).
: (1) cet appareil ne doit pas créer d’interférences et (2) cet appareil doit tolérer tout type d’interférences, y compris celles susceptibles de provoquer un fonctionnement non souhaité de l’appareil. Canadian Department of Communications Statement This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications.
FCC Bluetooth Wireless Compliance The antenna used with this transmitter must not be colocated or operated in conjunction with any other antenna or transmitter subject to the conditions of the FCC Grant. Bluetooth Industry Canada Statement This Class B device meets all requirements of the Canadian interference-causing equipment regulations. Cet appareil numérique de la Class B respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.
Optical Drive Safety Information Laser Safety Information CD-ROM Drive Safety Warning CLASS 1 LASER PRODUCT WARNING! To prevent exposure to the optical drive’s laser, do not attempt to disassemble or repair the optical drive by yourself. For your safety, contact a professional technician for assistance. Service warning label WARNING! INVISIBLE LASER RADIATION WHEN OPEN. DO NOT STARE INTO BEAM OR VIEW DIRECTLY WITH OPTICAL INSTRUMENTS.
ENERGY STAR is a joint program of the U.S. Environmental Protection Agency and the U.S. Department of Energy helping us all save money and protect the environment through energy efficient products and practices. 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.
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. NOTE: Tips and additional information to help you complete a task.
Package contents ASUS Desktop PC Keyboard x1 (optional) Mouse x1 (optional) ASUS mouse pad x 1 (Optional) Recovery DVD x1 (Optional) D642MF / D6421SFF Power cord x1 Installation Guide Warranty card x1 Installation Guide x1 • 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.
Chapter 1 Getting started Welcome! Thank you for purchasing the ASUS Desktop PC! The ASUS Desktop PC provides cutting-edge performance, uncompromised reliability, and user-centric utilities. All these values are encapsulated in a stunningly futuristic and stylish system casing. Read the ASUS Warranty Card before setting up your ASUS Desktop PC. • The Desktop PC does not support Windows® 7 operating system. ASUS is not responsible for any loss or damage incurred by installing Window® 7.
ENGLISH Illustrations are for reference only. The ports and their locations, the chassis and chassis color vary with different models. Front a b c d Power button. Press this button to turn on your computer. HDD LED. This LED shows the status of the hard disk drive. Optical disk drive bay. There is an optical disk drive in this bay. Optical disk drive eject button. Press this button to eject the optical disk drive tray.
a USB 3.1 Gen 1 Type-A port b USB 3.1 Gen 1 Type-C port (5V/1.5A; for data transfer only) c ENGLISH Option A: USB 2.0 ports d Option B: a b USB 3.1 Gen 1 Type-A ports c d USB 2.0 ports Option C: a b c d USB 3.1 Gen 1 Type-A ports • DO NOT connect a keyboard / mouse to any USB 3.1 Gen1 port when installing Windows® operating system. • Due to USB 3.1 Gen1 controller limitation, USB 3.1 Gen1 devices can only be used under Windows® OS environment and after the USB 3.
Rear ENGLISH Power connector. Plug the power cord to this connector. PS/2 mouse port. This port is for a PS/2 mouse. PS/2 keyboard port. This port is for a PS/2 keyboard. HDMI port. This port is for a High-Definition Multimedia Interface (HDMI) connector, and is HDCP compliant allowing playback of HD DVD, Blu-ray, and other protected content.
ENGLISH DisplayPort. This port is for a DisplayPort-compatible device. USB 3.1 Gen1 ports. These 9-pin Universal Serial Bus (USB) ports are for USB 3.1 Gen1 devices. • DO NOT connect a keyboard / mouse to any USB 3.1 Gen1 port when installing Windows® operating system. • Due to USB 3.1 Gen1 controller limitation, USB 3.1 Gen1 devices can only be used under Windows® OS environment and after the USB 3.1 Gen1 driver installation. • USB 3.1 Gen1 devices can only be used as data storage only.
ENGLISH ACT/LINK LED SPEED LED LAN port LED indications Activity/Link LED Status Description OFF No link ORANGE Linked BLINKING Data activity Speed LED Status OFF ORANGE GREEN Description 10Mbps connection 100Mbps connection 1Gbps connection LAN port VGA port. This port is for VGA-compatible devices such as a VGA monitor. Air vents. These vents allow air ventilation. DO NOT block the air vents on the chassis. Always provide proper ventilation for your computer.
Setting up your computer ENGLISH This section guides you through connecting the main hardware devices, such as the external monitor, keyboard, mouse, and power cord, to 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: 1. Connect a monitor to a display output port on the ASUS Graphics Card. 2.
Using the onboard display output ports ENGLISH Connect your monitor to the onboard display output port. To connect an external monitor using the onboard display output ports: 1. Connect a VGA monitor to the VGA port or a DisplayPort monitor to the DisplayPort port on the rear panel of your computer. 2. Plug the monitor to a power source. • If your computer comes with an ASUS Graphics Card, the graphics card is set as the primary display device in the BIOS.
Connecting a USB keyboard and a USB mouse ENGLISH Connect a USB keyboard and a USB mouse to the USB ports on the rear panel of your computer. 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.
Connecting multiple external displays ENGLISH Your desktop PC may come with VGA, HDMI, or DisplayPort ports and allows you to connect multiple external displays. Setting up multiple displays When using multiple monitors, you are allowed to set display modes. You can use the additional monitor as a duplicate of your main display, or as an extension to enlarge your Windows desktop. To set up multiple displays: 1. Turn off your computer. 2.
Turning your computer ON ENGLISH This section describes how to turn on your computer after setting up your computer. Turning your computer ON To turn your computer ON: 1. Turn your monitor ON. 2. Press the power button on your computer. Power button 3. Wait until the operating system loads automatically.
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Chapter 2 ENGLISH Connecting devices to your computer Connecting a USB storage device This desktop PC provides USB 2.0/1.1 and USB 3.1 Gen1 ports on the front and rear panels. The USB ports allow you to connect USB devices such as storage devices. To connect a USB storage device: • Insert the USB storage device to your computer. You can enable or disable the front and rear USB 2.0 and USB 3.1 Gen1 ports individually from the BIOS Setup.
Connecting microphone and speakers ENGLISH This desktop PC comes with microphone ports and speaker ports on both the front and rear panels. The audio I/O ports located on the rear panel allow you to connect 2.1-channel, 4.1-channel, 5.1-channel, and 7.1-channel stereo speakers. • When your Desktop PC comes with an internal speaker, the audio output will be from the internal speaker. • When you connect an external audio device such as earphone or speaker, you need to enable the audio device output.
LINE OUT ENGLISH Connecting 2.1-channel Speakers Connecting 4.
Connecting 5.1-channel Speakers ENGLISH LINE OUT Connecting 7.
Changing to the external audio output ENGLISH When you connect an external audio device to your Desktop PC, enable the audio device output to ensure a clear audio quality. To change to the external audio output: 1. Connect an external audio device such as earphone or speaker to the rear Line Out port. The Audio Manager screen automatically pops up. For the location of the rear Line Out port, refer to the section Getting to know your computer. 2. Tick Front Speaker Out, then click OK. 3.
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ENGLISH Chapter 3 Using your computer Proper posture when using your Desktop PC When using your Desktop PC, maintaining the proper posture is necessary to prevent strain to your wrists, hands, and other joints or muscles. This section provides you with tips on avoiding physical discomfort and possible injury while using and fully enjoying your Desktop PC.
Using the optical drive (optional) ENGLISH Inserting an optical disc To insert an optical disc: 1. While your system is on, press the eject button below the drive bay cover to open the tray. 2. Place the disc to the optical drive with the label side facing up. 3. Push the tray to close it. 4. Select a program from the AutoPlay window to access your files.
Configuring the USB ports using the BIOS ENGLISH You can enable or disable the front and rear USB 2.0 and USB 3.1 Gen1 ports from the BIOS Setup. To disable or enable the front and rear USB 2.0 and USB 3.1 Gen1 ports: 1. Press to enter the BIOS Setup at startup. 2. From the BIOS Setup screen, click Advanced > USB Configuration > USB Single Port Control. 3. Select the USB port that you want to enable or disable. 4. Press to enable or disable the selected USB port. 5.
Configuring the HDD security setting using the BIOS ENGLISH You can set a password in the BIOS Setup to protect your HDD. To set a password for your HDD from the BIOS Setup: 1. Press to enter the BIOS Setup at startup. 2. From the BIOS Setup EZ Mode screen, click Exit > Advanced Mode. From the Advanced Mode screen, click Main > HDDx: [name of HDD] to open the HDD Password screen. 3. Select the Set User Password item and press . 4.
ENGLISH Chapter 4 Connecting to the Internet Wired connection Use an RJ-45 cable to connect your computer to a DSL/cable modem or a local area network (LAN). Connecting via a DSL/cable modem To connect via a DSL/cable modem: 1. Set up your DSL/cable modem. Refer to the documentation that came with your DSL/cable modem. 2. 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 a DSL/cable modem.
Connecting via a local area network (LAN) ENGLISH To connect via a LAN: 1. 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. RJ-45 cable 2. Turn on your computer. 3. Configure the necessary Internet connection settings. LAN • For more details, refer to the section Configuring the network connection. • Contact your Internet Service Provider (ISP) for details or assistance in setting up your Internet connection.
ENGLISH Chapter 5 Troubleshooting Troubleshooting This chapter presents some problems you might encounter and the possible solutions. ? ? My computer cannot be powered on and the power LED on the front panel does not light up. • Check if your computer is properly connected. • Check if the wall outlet is functioning. • Check if the Power Supply Unit is switched on. Refer to the section Turning your computer ON in Chapter 1. My computer hangs.
? The arrow keys on the number key pad are not working. ENGLISH 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. ? ? ? 38 No display on the monitor. • Check if the monitor is powered on. • Ensure that your monitor is properly connected to the video output port on your computer.
I want to restore or undo changes to my computer’s system settings without affecting my personal files or data. ENGLISH ? On Windows® 10: You can use Windows® 10 recovery option to refresh or reset your computer’s system settings. To use the refresh option, click Settings > Update & recovery > Reset this PC from the Start menu, select Keep my files, wait for several seconds and click Next to continue or Cancel to quit.
? My speakers produce no sound. ENGLISH • Ensure that you connect your speakers to the Line out port on the front panel or the rear panel. • Check if your speaker 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 .
Problem No power (The power indicator is off) ASUS Desktop PC Possible Cause Action Incorrect power voltage • S et your computer’s power voltage switch to your area’s power requirements. • Adjust the voltage settings. Ensure that the power cord is unplugged from the power outlet. Your computer is not turned on. Press the power key on the front panel to ensure that your computer is turned on. Your computer’s power cord is not properly connected.
Display ENGLISH Problem No display output after turning the computer on (Black screen) Possible Cause Action The signal cable is not connected to the correct VGA port on your computer. • C onnect the signal cable to the correct display port (onboard VGA or discrete VGA port). • If you are using a discrete VGA card, connect the signal cable to the discrete VGA port. Signal cable problems Try connecting to another monitor. Possible Cause Action The LAN cable is not connected.
Problem No Audio Possible Cause Action Speaker or headphone is connected to the wrong port. • R efer to your computer’s user manual for the correct port. • Disconnect and reconnect the speaker to your computer. Speaker or headphone does not work. Try using another speaker or headphone. The front and back audio ports do not work. Try both the front and back audio ports. If one port failed, check if the port is set to multi-channel.
CPU ENGLISH Problem Too noisy right after turning on the computer. Possible Cause Action Your computer is booting up. It is normal. The fan runs on its full speed when the computer is powering on. The fan slows down after entering the OS. The BIOS settings have been changed. Old BIOS version The CPU fan has been replaced. Computer is too noisy when in use. Restore the BIOS to its default settings. Update the BIOS to the latest version. Visit the ASUS Support site at https://www.asus.
ASUS Desktop PC Windows® 10 User Manual Appendix Windows® 10 User Manual E10435 First Edition May 2015 Copyright © ASUSTeK Computer Inc.
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Starting for the first time ENGLISH When you start your computer for the first time, a series of screens appear to guide you in configuring the basic settings of your Windows® 10 operating system. To start your Desktop PC for the first time: 1. Press the power button on your Desktop PC. Wait for a few minutes until the setup screen appears. 2. From the setup screen, pick your region and language that you want to use on your desktop PC. 3. Carefully read the License Terms, then tap I Accept. 4.
Using the Windows® 10 UI ENGLISH The Windows® 10 User Interface (UI) includes the favorite Start menu and the tiled-formatted Start screen. It includes the following features you can use while working on your Desktop PC.
Start screen ENGLISH The Start screen , which appears together with the Start menu, helps organize all the apps you need in just one place. The apps on the Start screen are displayed on tiled-format for easy access. Some apps require signing in to your Microsoft account before they are fully launched. Click to restore the Start screen Moving apps on the Start screen You can move apps from the Start screen simply through dragging and dropping the app to your preferred location.
Taskbar ENGLISH Windows® 10 comes with the standard taskbar, which keeps all your currently running apps or items in the background. Unpinning apps from the taskbar 1. From the Start screen or taskbar, right-click the app you want to unpin. 2. Click Unpin from Start or Unpin this program from taskbar to remove the app from the Start screen or taskbar. Using the Task View When you have several running apps, you can click running apps, and click on an app or item to launch it.
Snap feature ENGLISH The Snap feature displays about four apps or more in one screen, allowing you to work or switch among apps. Using Snap Use your Desktop PC’s mouse or keyboard to activate Snap onscreen. Using your mouse a) Launch an app, then drag and release on a screen corner to snap it in place. b) Snap another app to your preferred location on the screen. Using your keyboard a) Launch an app, press snap the app in place.
Keyboard shortcuts ENGLISH Using your keyboard, you can also use the following shortcuts to help you launch apps and navigate Windows® 10.
Launches the magnifier and zooms in your screen. + <+> + ENGLISH Zooms out your screen. + <-> Opens the Narrator Settings. Removing everything and reinstalling Windows® 10 Restoring your PC to its original factory settings can be done using the Remove everything and reinstall options in PC Settings. Refer to the steps below to use this option. Back up all your data before using this option. This process may take a while to complete. 1.
ASUS contact information ASUS contact information ENGLISH ASUSTeK COMPUTER INC. Address Telephone Fax Web site 4F, No. 150, Li-Te Rd., Peitou, Taipei 112, Taiwan +886-2-2894-3447 +886-2-2890-7798 www.asus.com/ Technical Support Telephone Fax Online support +86-21-38429911 +86-21-5866-8722, ext. 9101# http://qr.asus.com/techserv ASUS COMPUTER INTERNATIONAL (America) Address Telephone Fax Web site 48720 Kato Rd., Fremont, CA 94538, USA +1-510-739-3777 +1-510-608-4555 http://www.asus.
