AOC Gaming 25G4SRE Full HD 25-inch Monitor User Manual

1. Introduction

Thank you for choosing the AOC Gaming 25G4SRE monitor. This manual provides essential information for setting up, operating, and maintaining your monitor. Please read it carefully before using the product to ensure proper functionality and safety. The AOC 25G4SRE is designed for competitive gaming, offering an ultra-fast 300 Hz refresh rate (overclockable to 310 Hz), a 1 ms GtG response time, and a fast IPS panel for smooth, tear-free visuals. With 0.3 ms MPRT, low input lag, and HDR10 support, every image is sharp and responsive. It features an eSports base, FlickerFree technology, and an integrated USB hub for seamless connectivity.

Figure 1.1: Front view of the AOC Gaming 25G4SRE monitor.

2. Safety Information

Please observe the following safety precautions to prevent damage to the monitor and ensure your personal safety:

• Do not place the monitor on an unstable cart, stand, or table.
• Do not block ventilation openings.
• Do not use the monitor near water.
• Do not place heavy objects on the power cord.
• Use only the power adapter supplied with the monitor.
• Unplug the monitor from the wall outlet if it will not be used for an extended period.
• Refer all servicing to qualified service personnel.

3. Package Contents

Verify that all items are present in your package. If any items are missing or damaged, contact your dealer immediately.

• AOC Gaming 25G4SRE Monitor
• Monitor Stand (Base and Neck)
• Power Cable
• HDMI Cable
• DisplayPort Cable
• Quick Start Guide

4. Setup

4.1 Assembling the Stand

1. Carefully place the monitor face down on a soft, clean surface to prevent scratches.
2. Attach the stand neck to the monitor panel.
3. Secure the stand base to the neck using the provided screws.

4.2 Connecting the Monitor

Connect the monitor to your computer and power source using the appropriate cables.

Figure 4.1: Rear view of the monitor, showing the stand attachment area and port locations.

Figure 4.2: Diagram illustrating the HDMI, DisplayPort, and Headphone Out ports.

• Power Connection: Connect the power cable to the monitor's power input and then to a wall outlet.
• Video Connection:
  • For optimal performance, use the DisplayPort cable to connect the monitor to your computer's graphics card.
  • Alternatively, use an HDMI cable to connect to an HDMI port on your computer. The monitor supports 2 x HDMI 2.0 inputs.
• Audio Connection: Connect headphones or external speakers to the Headphone Out port if desired.

5. Operating the Monitor

5.1 Power On/Off

Press the power button located on the bottom right of the monitor to turn it on or off.

5.2 On-Screen Display (OSD) Menu

Use the buttons on the bottom bezel of the monitor to navigate the OSD menu. The OSD allows you to adjust various settings such as brightness, contrast, color temperature, input source, and gaming features.

Figure 5.1: Example of the On-Screen Display (OSD) menu for monitor settings.

5.3 Key Features and Settings

• High Refresh Rate (300Hz/310Hz OC): Experience ultra-smooth gameplay. Ensure your graphics card and connection cable (DisplayPort recommended) support this refresh rate. You can enable overclocking to 310Hz via the OSD menu.


Figure 5.2: Visual comparison demonstrating the fluidity of 300Hz refresh rate over 60Hz.

• Fast IPS Panel: Enjoy wide viewing angles up to 178 degrees with consistent color and clarity from almost any perspective.


Figure 5.3: Illustration of wide viewing angles provided by the Fast IPS panel technology.

• NVIDIA G-Sync Compatible: Synchronizes the monitor's refresh rate with your NVIDIA GPU to eliminate screen tearing and stuttering for a fluid gaming experience. Enable this feature in your graphics card control panel.

Figure 5.4: Visual representation of NVIDIA G-Sync compatibility for tear-free gaming.
• VESA Certified DisplayHDR 400: Provides enhanced dynamic range for improved colors and contrast, delivering a more vivid visual experience. Activate HDR in your operating system display settings.


Figure 5.5: Comparison showing the visual improvement with DisplayHDR 400 enabled.

• Low Input Lag: Minimizes the delay between your input devices and the display, ensuring quick response times in fast-paced games.


Figure 5.6: Illustration demonstrating the benefit of low input lag for responsive gaming.

• Rapid Response Time (1ms GtG / 0.3ms MPRT): Reduces motion blur and ghosting for crystal-clear images during fast-moving scenes.

Figure 5.7: Visual comparison highlighting the difference between 0.3ms MPRT and 4ms response times.
• FlickerFree Technology: Reduces screen flickering to minimize eye strain during prolonged use.


Figure 5.8: Comparison showing the absence of flicker on a FlickerFree monitor versus a conventional one.

• Low Blue Light Mode: Reduces harmful blue light emissions to decrease eye fatigue and improve viewing comfort. This can be enabled through the OSD menu.

6. Maintenance

6.1 Cleaning the Monitor

• Always unplug the monitor before cleaning.
• Use a soft, lint-free cloth lightly dampened with water or a mild, non-abrasive screen cleaner.
• Do not use alcohol, ammonia, or abrasive cleaners, as they may damage the screen or casing.
• Wipe the screen gently to avoid scratching.

6.2 General Care

• Avoid exposing the monitor to direct sunlight or extreme temperatures.
• Keep the monitor away from sources of heat and moisture.
• Do not place heavy objects on the monitor or its cables.

7. Troubleshooting

If you encounter issues with your monitor, refer to the following common problems and solutions:

8. Specifications

Detailed technical specifications for the AOC Gaming 25G4SRE monitor:

For more detailed product information, please refer to the official product information sheet:

Figure 8.1: Product Information Sheet (English) for AOC 25G4SRE.

You can also find the EPREL registration details here.

9. Warranty and Support

AOC International provides comprehensive support for your monitor.

9.1 Warranty Information

• Minimum Guarantee Offered by Supplier: 3 Years
• Minimum Guaranteed Availability of Spare Parts: 7 Years
• Minimum Guaranteed Product Support: 8 Years

Please retain your proof of purchase for warranty claims.

9.2 Customer Support

For technical assistance, warranty inquiries, or other support needs, please contact AOC Customer Service:

• Website: https://eu.aoc.com
• Email: kevin.yang@tpv-tech.com
• Phone: +31 (0)20 504 6962