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Asus ROG G20AJ - User Manual

Asus ROG G20AJ
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ASUS Gaming Desktop PC
ROG G20AJ
User Guide

Questions and Answers

  • J
    James CampbellAug 17, 2025
    What to do if my Asus Desktop computer cannot be powered on?
    • B
      Brandy CollinsAug 17, 2025
      First, check if your Asus Desktop is properly connected to a power source. Next, verify that the wall outlet is functioning correctly. Finally, ensure that the Power Supply Unit is switched on.
  • K
    Kristina SullivanAug 19, 2025
    What to do if my Asus ROG G20AJ computer hangs?
    • I
      idillonAug 19, 2025
      If your Asus Desktop computer hangs, simultaneously press the + + keys on the keyboard, then click Task Manager. If the keyboard is not responding, press and hold the Power button on the top of your chassis until the computer shuts down, then press the Power button again to turn it back on.
  • D
    David SuttonAug 22, 2025
    Why is my Asus ROG G20AJ Desktop system speed too slow?
    • A
      Aaron RothAug 22, 2025
      If your Asus Desktop system speed is too slow, try closing some of the programs that are running. Also, use an anti-virus software to scan for viruses and repair your computer. As a last resort, reinstall the operating system.
  • T
    Thomas McbrideAug 26, 2025
    What to do if there is no display on the monitor of my Asus ROG G20AJ?
    • H
      Heather RodriguezAug 26, 2025
      First, check if the monitor is powered on. Ensure that your monitor is properly connected to the video output port on your computer. If your computer has a discrete graphics card, ensure that you connect your monitor to a video output port on the discrete graphics card. Check if any of the pins on the monitor video connector are bent; if so, replace the monitor video connector cable. Also, check if your monitor is plugged into a power source properly.
  • M
    marywilsonAug 28, 2025
    Why is my Asus ROG G20AJ Desktop computer too noisy right after turning on?
    • C
      clarencewolfeAug 28, 2025
      It is normal for the fan to run at full speed when the Asus Desktop computer is powering on. The fan should slow down after entering the OS. You can also restore the BIOS to its default settings.
  • R
    Roy GrayAug 30, 2025
    What to do if my Asus ROG G20AJ Desktop speakers produce no sound?
    • S
      Susan HernandezAug 30, 2025
      First, ensure that you connect your speakers to the Line out port (lime) 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. If it is not muted, click and drag the slider to adjust the volume. You can also connect your speakers to another computer to test if the speakers are working properly.
  • J
    Jason VasquezSep 2, 2025
    What to do if my Asus ROG G20AJ Desktop computer is too noisy when in use?
    • R
      Rhonda AtkinsSep 2, 2025
      Ensure that you are using a compatible or ASUS-recommended CPU fan. Make sure that your Asus Desktop computer is working in an area with good air flow. If you know how to reinstall the motherboard, try to clean the inner space of the chassis.
  • R
    rhaleSep 4, 2025
    What to do if my Asus ROG G20AJ computer cannot detect my USB storage device?
    • L
      Lori Foster DVMSep 5, 2025
      The first time you connect your USB storage device to your Asus Desktop computer, Windows automatically installs a driver for it. Wait for a while and go to My Computer to check if the USB storage device is detected. You can also connect your USB storage device to another computer to test if the USB storage device is broken or malfunctions.
  • V
    valenciacharlesSep 7, 2025
    What to do if only one monitor has display when using multiple monitors on my Asus ROG G20AJ?
    • T
      Tina JohnsonSep 8, 2025
      Ensure that both monitors are powered on. During POST, only the monitor connected to the VGA port has display; the dual display function works only under Windows. When a graphics card is installed on your computer, ensure that you connect the monitors to the output port on the graphics card. Also, check if the multiple displays settings are correct.
  • B
    Brendan HillSep 12, 2025
    What to do if the arrow keys on the number key pad are not working on my Asus Desktop?
    • A
      Abigail GreenSep 12, 2025
      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.

Summary

Chapter 1: Getting started

Welcome!

Introduction and overview of the ASUS Desktop PC features.

Getting to know your computer

Identifies the main components and ports of the ASUS Desktop PC.

Setting up your computer

Connecting an external monitor

Guides on connecting a monitor to the HDMI port for Eco Energy Mode.

Connecting a USB keyboard and a USB mouse

Instructions for connecting USB keyboard and mouse to the rear panel ports.

Turning your computer ON

To turn your computer ON

Steps for powering on the ASUS Desktop PC after setup.

Chapter 2: Connecting devices to your computer

Connecting a USB storage device

Instructions for connecting USB storage devices to front and rear panel ports.

Connecting microphone and speakers

Details on connecting audio devices like microphones and stereo speakers.

Connecting multiple external displays

Guide to connecting multiple monitors for extended or duplicated desktop views.

Connecting an HDTV

Instructions for connecting a High Definition TV via the HDMI port.

Chapter 3: Using your computer

Proper posture when using your Desktop PC

Tips for maintaining ergonomic posture to prevent strain while using the PC.

Using the optical drive

Steps for inserting and removing optical discs from the drive.

Chapter 4: Connecting to the Internet

Wired connection

Guide to establishing an Internet connection using an RJ-45 cable.

Wi-Fi connection (on selected models only)

Instructions for setting up a wireless Internet connection via a wireless access point.

Chapter 5: Troubleshooting

Troubleshooting

Common problems and their solutions for the ASUS Desktop PC.

Starting for the first time

To start your Desktop PC for the first time

Step-by-step guide for the initial setup of the Windows 8.1 operating system.

Windows 8.1 lock screen

Description of the lock screen and how to proceed in Windows 8.1.

Using the Windows UI

Start screen

Explanation of the Windows 8.1 Start screen and its organization of programs.

Windows apps

Information on apps pinned to the Start screen in a tiled format.

Hotspots

Hotspots on a running app

Describes onscreen hotspots for interacting with running applications.

Hotspots on the Start screen

Describes onscreen hotspots for interacting with the Start screen.

Working with Windows apps

Launching apps

Instructions on how to launch applications using mouse or keyboard.

Customizing apps

How to move, resize, or unpin apps from the Start screen.

Resizing apps

Steps to resize an app tile on the Start screen.

Unpinning apps

Procedure to remove an app from the Start screen.

Closing apps

Methods to close running applications in Windows 8.1.

Accessing the All Apps screen

How to access and manage apps via the All Apps screen.

Pinning an app on the Start screen

Guide to pin an application to the Start screen.

Charms bar

Launching the Charms bar

Methods to activate the Charms bar using mouse or keyboard.

Inside the Charms bar

Details on the functions of Search, Share, Start, Devices, and Settings charms.

Snap feature

Using Snap

How to use the Snap feature to display two apps side-by-side.

Other keyboard shortcuts

Turning your Desktop PC OFF

Putting your Desktop PC to sleep

Entering the BIOS Setup

Quickly enter the BIOS

Methods to quickly access the BIOS settings on the ASUS Desktop PC.

Recovering your system

Resetting your PC

Restores the PC to factory default settings, backing up data.

Recovering from a system image file

Using a USB recovery drive to restore PC settings.

Creating a USB recovery drive

Steps to create a USB recovery drive for system recovery.

Removing everything and reinstalling Windows

ASUS contact information

Asus ROG G20AJ Specifications

General IconGeneral
Tcase72.72 °C
Bus typeDMI
SteppingC0
Processor cache6 MB
Processor cores4
Processor modeli5-4460
System bus rate5 GT/s
Processor familyIntel® Core™ i5
Processor seriesIntel Core i5-4400 Desktop series
Processor socketLGA 1150 (Socket H3)
Processor codenameHaswell
Number of QPI links0
Processor frequency3.2 GHz
Processor cache typeSmart Cache
Processor lithography22 nm
Processor manufacturerIntel
Processor front side bus- MHz
PCI Express slots version3.0
Processor boost frequency3.4 GHz
Processor operating modes32-bit, 64-bit
ECC supported by processorNo
PCI Express configurations1x16, 2x8, 1x8+2x4
Thermal Design Power (TDP)84 W
Maximum number of PCI Express lanes16
Memory types supported by processorDDR3-SDRAM
Memory clock speeds supported by processor1333, 1600 MHz
Memory bandwidth supported by processor (max)25.6 GB/s
Maximum internal memory supported by processor32 GB
Memory slots2x SO-DIMM
Internal memory8 GB
Memory channelsDual-channel
Storage mediaHDD
Optical drive typeDVD Super Multi
Card reader integrated-
Total storage capacity1000 GB
Number of HDDs installed1
On-board graphics cardYes
On-board graphics card ID0x412
Discrete graphics card modelNVIDIA® GeForce® GTX 760
On-board graphics card modelIntel® HD Graphics 4600
Discrete graphics card memory2 GB
On-board graphics card familyIntel® HD Graphics
Maximum on-board graphics card memory1.024 GB
On-board graphics card base frequency350 MHz
On-board graphics card DirectX version11.1
On-board graphics card dynamic frequency (max)1100 MHz
Number of displays supported (on-board graphics)3
Operating system installedWindows 8.1
Operating system architecture64-bit
Wi-Fi standards802.11a, 802.11b, 802.11g
Bluetooth version4.0
Top Wi-Fi standardWi-Fi 4 (802.11n)
Ethernet LAN data rates10, 100, 1000 Mbit/s
USB 2.0 ports quantityUSB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Product colorBlack, Red
Product typePC
Motherboard chipsetIntel® H97
Audio output channels7.1 channels
Scalability1S
Processor codeSR1QK
Processor ARK ID80817
Processor package size37.5 x 37.5 mm
Supported instruction setsAVX 2.0
Thermal solution specificationPCG 2013D
Intel Identity Protection Technology version1.00
Intel Stable Image Platform Program (SIPP) version0.00
Weight and Dimensions IconWeight and Dimensions
Depth358 mm
Width104 mm
Height340 mm
Weight6380 g
Package depth592 mm
Package width190 mm
Package height400 mm

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