Asus A4321 Series User manual

A4321 / A6421 Series
User Guide

ASUS All-in-One PC
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ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS MANUAL, INCLUDING THE PRODUCTS AND
SOFTWARE DESCRIBED IN IT.
Copyright © 2017 ASUSTeK COMPUTER INC. All Rights Reserved.
LIMITATION OF LIABILITY
Circumstances may arise where because of a default on ASUS’part or other liability, you are entitled to
recover damages from ASUS. In each such instance, regardless of the basis on which you are entitled to
claim damages from ASUS, ASUS is liable for no more than damages for bodily injury (including death)
and damage to real property and tangible personal property; or any other actual and direct damages
resulted from omission or failure of performing legal duties under this Warranty Statement, up to the
listed contract price of each product.
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infringement under this Warranty Statement.
This limit also applies to ASUS’suppliers and its reseller. It is the maximum for which ASUS, its suppliers,
and your reseller are collectively responsible.
UNDER NO CIRCUMSTANCES IS ASUS LIABLE FOR ANY OF THE FOLLOWING: (1) THIRD-PARTY CLAIMS
AGAINST YOU FOR DAMAGES; (2) LOSS OF, OR DAMAGE TO, YOUR RECORDS OR DATA; OR (3) SPECIAL,
INCIDENTAL, OR INDIRECT DAMAGES OR FOR ANY ECONOMIC CONSEQUENTIAL DAMAGES (INCLUDING
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SERVICE AND SUPPORT
Visit our multi-language web site at https://www.asus.com/support/
E13087
Revised Edition V2
June 2017

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Contents
About this manual.....................................................................................................6
Conventions used in this manual ........................................................................7
Typography....................................................................................................................... 7
Icons .................................................................................................................................... 8
Safety information.....................................................................................................9
Setting up your system................................................................................................. 9
Care during use ............................................................................................................... 9
Sound Pressure Warning.............................................................................................. 11
DC Fan Warning............................................................................................................... 11
Package contents ......................................................................................................12
Chapter 1: Hardware Setup
Getting to know your ASUS All-in-One PC .......................................................13
Front view.......................................................................................................................... 13
Side views.....................................................................................................................16
Left side view ................................................................................................................... 16
Right side view ................................................................................................................ 16
Rear view ......................................................................................................................18
Chapter 2: Using your ASUS All-in-One PC
Placing on the desktop............................................................................................21
Setting up your ASUS All-in-One PC...................................................................22
Connecting the wired keyboard and mouse........................................................ 22
Connecting the wireless keyboard and mouse (optional) .............................. 23
Powering on the system...............................................................................................24
Using the touch screen............................................................................................26
Gestures for the touch screen panel...................................................................27
Using touch screen panel gestures on Windows® 10 ....................................... 27

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Chapter 3: Working with Windows® 10
Starting for the first time.........................................................................................31
Start menu ...................................................................................................................32
Launching the Start menu .......................................................................................... 33
Opening programs from the Start menu............................................................... 33
Windows®apps...........................................................................................................34
Working with Windows® apps ................................................................................... 35
Customizing Windows® apps..................................................................................... 35
Task view.......................................................................................................................38
Snap feature ................................................................................................................39
Snap hotspots.................................................................................................................. 39
Action Center ..............................................................................................................41
Other keyboard shortcuts ......................................................................................42
Connecting to wireless networks ........................................................................44
Wi-Fi..................................................................................................................................... 44
Bluetooth .......................................................................................................................... 45
Connecting to wired networks.............................................................................46
Configuring a dynamic IP/PPPoE network connection .................................... 46
Configuring a static IP network connection ......................................................... 47
Turning your ASUS All-in-One PC off..................................................................48
Putting your ASUS All-in-One PC to sleep ........................................................49
Chapter 4: Recovering your system
Entering the BIOS Setup..........................................................................................51
Quickly enter the BIOS.................................................................................................. 51
Recovering your system..........................................................................................52
Performing a recovery option.................................................................................... 53
Chapter 5: Repairing or Modifying your ASUS All-in-One PC
Installing a RAM module.........................................................................................55
Removing and replacing the Hard Disk Drive (HDD) ...................................59

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Appendices
Notices...........................................................................................................................63
Federal Communication Commission Interference Statement..................... 63
RF exposure warning..................................................................................................... 64
Canadian Department of Communications Statement.................................... 65
IC Radiation Exposure Statement for Canada...................................................... 65
Canada, Industry Canada (IC) Notices ..................................................................... 65
Radio Frequency (RF) Exposure Information........................................................ 66
Canada, avis d’Industry Canada (IC) ........................................................................ 66
Déclaration d’exposition aux radiations ................................................................ 66
Wireless Operation Channel for Different Domains........................................... 67
IC........................................................................................................................................... 67
CE Mark Warning............................................................................................................. 67
REACH................................................................................................................................. 69
Global Environmental Regulation Compliance and Declaration .................. 69
ASUS Recycling/Takeback Services.......................................................................... 69
Coating Notice................................................................................................................. 70
Rechargeable Battery Recycling Service in North America............................. 70
Prevention of Hearing Loss ........................................................................................ 70
ENERGY STAR complied product .............................................................................. 71
TCO Certification (for A6421 only)............................................................................ 72

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About this manual
This manual provides information about the hardware and software
features of your ASUS All-in-One PC, organized through the following
chapters:
Chapter 1: Hardware Setup
This chapter details the hardware components of your ASUS All-
in-One PC.
Chapter 2: Using your ASUS All-in-One PC
This chapter provides you with information on using your ASUS
All-in-One PC.
Chapter 3: Working with Windows® 10
This chapter provides an overview of using Windows® 10 in your
ASUS All-in-One PC.
Chapter 4: Recovering your system
This chapter provides recovery options for your ASUS All-in-One
PC.
Chapter 5: Repairing or Modifying your ASUS All-in-One PC
This chapter guides you through the process of repairing and
modifying parts of your All-in-One PC.
Appendices
This section includes notices and safety statements for your ASUS
All-in-One PC.

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Conventions used in this manual
To highlight key information in this manual, some texts are presented as
follows:
IMPORTANT! This message contains vital information that must be
followed to complete a task.
NOTE: This message contains additional information and tips that can
help complete tasks.
WARNING! This message contains important information that must be
followed to keep you safe while performing tasks and prevent damage to
your device’s data and components.
Typography
Bold =This indicates a menu or an item that must be selected.
Italic = This indicates sections that you can refer to in this manual.

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All illustrations and screenshots in this manual are for reference
only. Actual product specications and software screen images may
vary with territories. Visit the ASUS website at www.asus.com for the
latest information.
Icons
The icons below indicate the devices you can use for completing a
series of tasks or procedures on your ASUS All-in-One PC.
= (optional) Use the touch screen panel.
= (optional) Use the wireless mouse.
= (optional) Use the wireless keyboard.

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Safety information
Your ASUS All-in-One PC is designed and tested to meet the latest
standards of safety for information technology equipment. However,
to ensure your safety, it is important that you read the following safety
instructions.
Setting up your system
• Readandfollowallinstructionsinthedocumentationbeforeyou
operate your system.
• Donotusethisproductnearwateroraheatedsourcesuchasa
radiator.
• Setupthesystemonastablesurface.
• Openingsonthechassisareforventilation.Donotblockorcover
these openings. Ensure that you leave plenty of space around the
system for ventilation. Never insert objects of any kind into the
ventilation openings.
• Usethisproductinenvironmentswithambienttemperatures
between 0°C and 40°C.
• Ifyouuseanextensioncord,ensurethatthetotalampererating
of the devices plugged into the extension cord does not exceed
its ampere rating.
Care during use
• Donotwalkonthepowercordorallowanythingtorestonit.
• Donotspillwateroranyotherliquidsonyoursystem.
• Whenthesystemisturnedo,asmallamountofelectrical
current still remains in the product. Always unplug all power,
modem, and network cables from the power outlets before
cleaning the system.

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• The touch screen requires periodic cleaning to perform at optimal
touch sensitivity. Keep the screen clean from foreign objects or
excessive dust accumulation. To clean the screen:
- Turnothesystemanddisconnectthepowercordfromthe
wall.
- Spray a small amount of household glass cleaner on the
supplied cleaning cloth and gently wipe the surface of the
screen.
- Do not spray the cleaner directly on the screen.
• Donotuseanabrasivecleaneroracoarseclothwhencleaning
the screen.
• Ifyouencounterthefollowingtechnicalproblemswiththe
product, unplug the power cord and contact a qualied service
technician or your retailer.
- The power cord or plug is damaged.
- Liquid has been spilled into the system.
- The system does not function properly even if you follow the
operating instructions.
- The system was dropped or the cabinet is damaged.
- The system performance changes.

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Sound Pressure Warning
Excessive sound pressure from earphones or headphones can cause
hearing loss or permanent damage to hearing. Increasing the volume
and equalizer beyond default levels increases the output voltage and
sound pressure produced by the earphones or headphones.
DC Fan Warning
Please note that the DC fan is a moving part and can cause harm when
used improperly. Keep away from the fan when using the product.

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Package contents
NOTE:
• Ifanyoftheitemsisdamagedormissing,contactyourretailer.
• The keyboard, mouse, and power supply illustrations are for reference
only. Actual product specications may vary with territories.
ASUS All-in-One PC AC adapter Power cord
Warranty card Keyboard (optional) Mouse (optional)
KBM USB receiver
dongle (optional)

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Getting to know your ASUS All-in-
One PC
Chapter 1: Hardware Setup
Front view

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Microphone
This built-in microphone can be used for video conferencing,
voice narration, audio recording, and multimedia applications.
NOTE: The function of the left microphone is available on
selected models.
Camera
The built-in camera allows you to take pictures or record videos
using your ASUS All-in-One PC.
Webcam LED
Indicates that the built-in webcam is enabled.
LCD display panel
The LCD display panel provides excellent viewing features for
photos, videos, and other multimedia les.
On selected models, multi-touch is supported. You can operate
your ASUS All-in-One PC using touch gestures.
Brightness down button
Press this button to decrease the brightness of your
ASUS All-in-One PC.
Brightness up button
Press this button to increase the brightness of your
ASUS All-in-One PC.
Volume decrease button
Press to decrease the volume.
Volume increase button
Press to increase the volume.

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Power button
Press this button to turn on your ASUS All-in-One PC.
Drive activity indicator
This indicator lights up when your ASUS All-in-One PC is
accessing the internal storage drives.

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Left side view Right side view
Side views
Refer to the following diagrams to identify the components on both sides
of the system.
Memory card reader
This ASUS All-in-One PC has a built-in memory card
reader slot that supports MMC, SD, SDHC, SDXC, MS
and MS PRO cards.
USB 3.1 Gen1 port
This USB 3.1 Gen1 (Universal Serial Bus) port provides
a transfer rate of up to 5 Gbit/s and is backward
compatible to USB 2.0.
Headphone jack
This port allows you to connect amplied speakers or
headphones.

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Microphone jack
The microphone jack is designed to connect to a
microphone used for video conferencing, voice
narrations, or simple audio recordings.
Optical Drive (optional)
This support compact discs (CD), digital video discs
(DVD), and/or Blu-ray discs (BD), and recordable (R) or re-
writable (RW) discs. Consult product specications for
details on included optical drive.
Smart Card Slot (optional)
This ASUS All-in-One PC has a built-in smart card reader
that can conveniently read data from and write data to a
smart card.

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Rear view
Refer to the following diagram to identify the components on this side
of the system.
Power input
The bundled power adapter converts AC power to DC
power for use with this jack. Power supplied through
this jack supplies power to the ASUS All-in-One PC. To
prevent damage to the ASUS All-in-One PC, always use
the bundled power adapter.
WARNING! The power adapter may become warm or hot
when in use. Do not cover the adapter and keep it away
from your body.

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LAN port
The eight-pin RJ-45 LAN port supports a standard
Ethernet cable for connection to a local network
Serial port (COM port)
The 9-pin serial (COM) connector allows you to connect
devices that have serial ports such as mouse, modem, or
printers.
VGA port
This port allows you to connect your ASUS All-in-One PC
to an external display.
HDMI output port
This port allows you to connect your ASUS All-in-One PC
to another HDMI-compatible device for le sharing or
extending your display monitor.
USB 3.1 Gen1 port
This USB 3.1 Gen1 (Universal Serial Bus) port provides
a transfer rate of up to 5 Gbit/s and is backward
compatible to USB 2.0.
USB 2.0 port
This USB (Universal Serial Bus) port is compatible with
USB 2.0 or USB 1.1 devices such as keyboards, pointing
devices, ash disk drives, external HDDs, speakers,
cameras and printers.

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Air vents
The air vents allow cool air to enter and warm air to exit
the ASUS All-in-One PC.
WARNING! Ensure that paper, books, clothing, cables,
or other objects do not block any of the air vents or else
overheating may occur.
Cable holder
Use this cable holder to organize your cables behind the
All-in-One PC.
Kensington® security slot
The Kensington® security slot allows you to secure your
ASUS All-in-One PC using Kensington® compatible
security products.
Manual back cover lock
The manual back cover lock is used to keep the back
cover secured. This lock should be manually moved to
an unlocked position to remove the back cover.