Manual for G15CS

Manual for G15CS

Brand: ASUS

Category: Desktop PC

Document Type: Manual

Language: EN

Available Languages: EN , ES

Uploaded: April 20, 2026, 8:07 p.m.

Manual Publish Date: 2020-07-01

Warranty Information

No warranty information found in the provided document snippets.

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.

Getting to know your computer

Illustrations are for reference only. The ports, their locations and the chassis color vary with different models.

Front & Top

  • 1. Power button. Press this button to turn on your computer.
  • 2. Headphone port. This port connects to a headphone or speaker. Supported by ASUS Audio Wizard.
  • 3. Microphone port. This port connects to a microphone.
  • 4. USB 3.2 gen1 Type-C port. The Universal Serial Bus 3.2 gen1 (USB 3.2 gen1) Type-C port connects to USB 3.2 gen1 Type-C devices. The output voltage of the USB 3.2 gen1 Type-C port is 5V, 0.9A.
  • 5. USB 3.2 gen1 port. The Universal Serial Bus 3.2 gen1 (USB 3.2 gen1) port connects to USB 3.2 gen1 devices such as a mouse, printer, scanner, camera, PDA, and others.
  • 6. Headset hanger. Press to open the headset hanger (with maximum load up to 1kg) and hang your headset here.

Rear

  • 1. USB 3.2 gen1 ports. The Universal Serial Bus 3.2 gen1 (USB 3.2 gen1) ports connect to USB 3.2 gen1 devices such as a mouse, printer, scanner, camera, PDA, and others.
  • 2. USB 2.0 ports. These Universal Serial Bus 2.0 (USB 2.0) ports connect to USB 2.0 devices such as a mouse, printer, scanner, camera, PDA, and others.
  • 3. Microphone port (pink). This port connects to a microphone.
  • 4. Line Out port (lime). This port connects to a headphone or speaker. In a 4, 5.1, or 7.1-channel configuration, the function of this port becomes Front Speaker Out. Supported by ASUS Audio Wizard.
  • 5. Line In port (light blue). This port connects to a tape, CD, DVD player, or other audio sources.
  • 6. Power connector. Plug the power cord to this connector.
  • 7. Expansion slot brackets. Remove the expansion slot bracket when installing an expansion card.
  • 8. ASUS Graphics Card (on selected models only). The display output ports on this optional ASUS Graphics Card may vary with different models.
  • 9. LAN (RJ-45) port. This port allows Gigabit connection to a Local Area Network (LAN) through a network hub.
  • 10. Air vents. These vents allow air ventilation.

Setting up your computer

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. Plug the monitor to a power source.

Connecting a USB keyboard and a USB mouse

Connect a USB keyboard and a USB mouse to the USB ports on the rear panel of your computer.

Turning your computer ON

This section describes how to turn on your computer after setting up your computer.

To turn your computer ON:

  1. Turn your monitor ON.
  2. Press the power button on your computer.
  3. Wait until the operating system loads automatically.

Connecting a USB storage device

This desktop PC provides USB 3.2 gen1 and USB 2.0 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.

Connecting microphone and speakers

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-channel, 4-channel, 5.1-channel, and 7.1-channel stereo speakers.

Connecting Headphone and Mic

Connecting 2-channel Speakers

Connecting 4-channel Speakers

Troubleshooting and error codes

Problem Possible Cause Action
No Audio Speaker or headphone is connected to the wrong port. Refer 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.
Driver problems Reinstall the audio driver
System speed is too slow Too many programs are running. Close some of the programs.
Computer virus attack Use an anti-virus software to scan for viruses and repair your computer. Reinstall the operating system.
The system often hangs or freezes. Hard disk drive failure Send the damaged hard disk drive to ASUS Service Center for servicing. Replace with a new hard disk drive.
Memory module problems Replace with compatible memory modules. Remove the extra memory modules that you have installed, then try again. Contact the ASUS Service Center for assistance.
There is not enough air ventilation for your computer. Move your computer to an area with better air flow.
Incompatible softwares are installed. Reinstall the OS and reinstall compatible softwares.
Too noisy right after turning on the computer. 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. Restore the BIOS to its default settings.
Computer is too noisy when in use. Old BIOS version Update the BIOS to the latest version. Visit the ASUS Support site at https://www.asus.com/support to download the latest BIOS versions.
The CPU fan has been replaced. Ensure that you are using a compatible or ASUS-recommended CPU fan.
There is not enough air ventilation for the computer. Ensure that your computer is working in an area with good air flow.
The system temperature is too high. Update the BIOS. If you know how to reinstall the motherboard, try to clean the inner space of the chassis. Contact the ASUS Service Center for assistance.
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