Model: EX2780Q
This manual provides comprehensive instructions for the setup, operation, maintenance, and troubleshooting of your BenQ MOBIUZ EX2780Q 27-inch QHD IPS Gaming Monitor. Designed for an immersive gaming experience, this monitor features QHD resolution, a 144Hz refresh rate, 1ms MPRT, AMD FreeSync Premium, and BenQ's proprietary HDRi technology. Please read this manual thoroughly before using your monitor to ensure proper functionality and to maximize its performance.

Figure 1: BenQ MOBIUZ EX2780Q Monitor Front View
Carefully remove all components from the packaging. Verify that all items listed below are present:

Figure 2: Monitor with Stand and Remote Control
Follow these steps to assemble the monitor stand:
Alternatively, the monitor supports VESA wall mount (100x100 mm) for alternative mounting solutions. Ensure to use appropriate VESA screws and mounting hardware (not included).

Figure 3: Rear View with Stand Attached
Connect the monitor to your computer or other devices using the appropriate cables:

Figure 4: Monitor Input Ports
After connecting all necessary cables, press the power button on the monitor or use the remote control to turn on the display. The monitor will automatically detect the active input source. If not, use the OSD (On-Screen Display) menu to manually select the input.
The monitor features a 5-Way Navigator joystick on the back for OSD menu navigation and a dedicated remote control for convenient access to settings. The Gaming Quick OSD provides quick access to frequently used gaming features.
Access the OSD menu to adjust display settings:
The EX2780Q features BenQ's HDRi technology, which enhances HDR content by intelligently adjusting clarity and brightness based on ambient light conditions. It also supports VESA DisplayHDR 400 for a superior HDR experience.
BenQ's Eye-Care technology is designed to reduce eye strain during prolonged use:
The monitor features integrated 2.1 Channel speakers (2W x 2 + 5W woofer) for rich audio. Adjust volume and audio modes via the OSD or remote control.
Enhance your gaming experience with these features:
To clean the monitor screen and casing:
If storing the monitor for an extended period, disconnect all cables, disassemble the stand if necessary, and pack it in its original packaging or a suitable protective container to prevent damage from dust and impacts.
This section addresses common issues you might encounter with your BenQ MOBIUZ EX2780Q monitor. If the problem persists after trying these solutions, please contact BenQ customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| No image on screen | Power cable disconnected; Video cable loose/incorrect; Incorrect input source selected; Monitor in standby mode. | Check power cable connection; Ensure video cable is securely connected to both monitor and source; Select correct input source via OSD/remote; Press any key on keyboard/move mouse to wake up. |
| Image is blurry or distorted | Incorrect resolution; Graphics card driver issue; Cable quality. | Set display resolution to 2560x1440; Update graphics card drivers; Try a different video cable. |
| No sound from speakers/headphone jack | Volume too low/muted; Incorrect audio output device selected; Audio cable issue. | Increase volume via OSD/remote; Check PC sound settings to ensure monitor is selected as output; Ensure headphone/audio cable is fully inserted. |
| Flickering screen | Refresh rate mismatch; Cable issue; External interference. | Ensure refresh rate is set correctly (e.g., 144Hz); Try a different video cable; Move monitor away from other electronic devices. |
| Feature | Detail |
|---|---|
| Display Size | 27 inches (68 cm) |
| Panel Type | IPS |
| Resolution | 2560 x 1440 (QHD) |
| Refresh Rate | 144Hz |
| Response Time | 1ms MPRT |
| Brightness | 300 nits |
| HDR Support | VESA DisplayHDR 400, BenQ HDRi |
| Color Gamut | 95% DCI-P3 |
| Connectivity | 2x HDMI 2.0, 1x DisplayPort 1.4, 1x USB-C, 1x Headphone Port |
| Speakers | 2.1 Channel (2W x 2 + 5W woofer) |
| Eye Care Features | Brightness Intelligence Plus, Low Blue Light, Flicker-free, ePaper mode |
| Adaptive Sync | AMD FreeSync Premium |
| VESA Mount | 100x100 mm |
| Dimensions (HxWxD) | Approx. 24.17 x 18.1 x 7.72 cm (with stand) |
| Weight | Approx. 5.9 kg |

Figure 5: Monitor Dimensions
Your BenQ MOBIUZ EX2780Q monitor comes with a 3-Year Warranty from the date of purchase. This warranty covers manufacturing defects and ensures repair or replacement of the product under normal use conditions. Please retain your proof of purchase for warranty claims.
For detailed warranty terms and conditions, please refer to the warranty card included with your product or visit the official BenQ website.
If you encounter any issues not covered in the troubleshooting section or require further assistance, please contact BenQ customer support:
When contacting support, please have your monitor's model number (EX2780Q) and serial number ready. The serial number is typically located on a sticker on the back of the monitor.
![]() |
BenQ MOBIUZ EX Series LCD Monitor User Manual: Setup, Features, and Support Comprehensive user manual for the BenQ MOBIUZ EX Series LCD Monitor, covering setup, advanced features like HDR and FreeSync, connectivity, OSD menu navigation, and troubleshooting. Visit Support.BenQ.com for the latest updates and support. |
![]() |
BenQ MOBIUZ EX Series OLED Monitor User Manual Comprehensive user manual for the BenQ MOBIUZ EX Series OLED Monitor, covering setup, operation, features like HDR and FreeSync, troubleshooting, and warranty information. |
![]() |
BenQ MOBIUZ EX Series LCD Monitor Quick Start Guide Get started quickly with your BenQ MOBIUZ EX Series LCD Monitor. This guide covers setup, connections, software installation, and key features for a seamless user experience. |
![]() |
BenQ MOBIUZ EX Series LCD Monitor Quick Start Guide (EX10R-EQ-VI) Concise guide for setting up and connecting your BenQ MOBIUZ EX Series LCD Monitor (Model EX10R-EQ-VI), including assembly, port identification, and basic setup instructions. |
![]() |
Manuel d'utilisation BenQ MOBIUZ Moniteur OLED Gamme EX Ce manuel d'utilisation fournit des instructions détaillées pour l'installation, le fonctionnement, l'entretien et le dépannage du moniteur BenQ MOBIUZ OLED Gamme EX, y compris les fonctionnalités avancées et les conseils de sécurité. |
![]() |
BenQ EX271UZ Monitor: Nastavitev Ločljivosti in Osveževanja Zaslona Navodila za nastavitev optimalne ločljivosti in hitrosti osveževanja za BenQ EX271UZ monitor, vključno s podpornimi načini in konfiguracijami vhodov. |