1. Einleitung
The Cooler Master QUBE 540 redefines PC building with its beginner-friendly flat-pack design and fully customizable interior. This compact ATX case removes the limits of traditional layouts, giving you the freedom to create your ideal internal setup. It also supports 3D-printed external accessories, allowing you to personalize both the look and functionality of your build.
Hauptmerkmale:
- Flexible Orientation Design: Engineered to work seamlessly in both horizontal and vertical positions, with a reversible I/O panel and movable handles that let you customize layout, improve accessibility, and reposition the case effortlessly.
- GPU Compatibility: Offers up to 415 mm GPU clearance without the front fan for full-size graphic cards.
- Motherboard-Kompatibilität: Supports ITX, ATX, and large E-ATX motherboards (up to 11" wide), all within a compact ATX form factor for maximum build flexibility.
- Mesh-Optimized Airflow: Full front mesh panel maximizes ventilation for superior cooling under load, paired with a pre-installed SickleFlow 120mm fan for improved airflow.
- USB Type-C & Full I/O Connectivity: The I/O panel includes 2× USB 3.2 Gen1 ports and a USB 3.2 Gen2 Type-C port, giving you fast and convenient front-access connectivity.

Abbildung 1: Vorderseite view of the Cooler Master QUBE 540 case, showcasing its tempered glass side panel and mesh front panel.
2. Aufbau und Montage
The QUBE 540 features a modular, flat-pack design for easy assembly and customization. Follow the steps below for initial setup and component installation.
2.1 Case Assembly and Modularity
The case components arrive disassembled, allowing for various configurations. Refer to the included manual for detailed diagrams on assembling the frame and panels.

Figure 2: The QUBE 540's flexible orientation design, showing the main frame and detachable base for vertical or horizontal setups.

Figure 3: Diagrams showcasing the modular interior design, allowing for diverse liquid-cooling setups or compact workstations.
2.2 Komponenteninstallation
Install your motherboard, CPU, RAM, storage, and graphics card into the assembled case. Ensure proper cable management for optimal airflow.
Installation des Netzteils (PSU):
The QUBE 540 supports bottom-mounted power supplies. Secure the PSU using the provided screws. Ensure all necessary cables are routed correctly before securing side panels.
Video 1: General PC build process by Cooler Master, demonstrating component installation. While not specific to QUBE 540, it illustrates common steps for PSU, motherboard, and cooling installation.
Installation der Grafikkarte (GPU):
The case offers ample space for large GPUs, with up to 415mm clearance without the front fan. Secure your GPU into the appropriate PCIe slot on the motherboard.

Abbildung 4: Intern view of the QUBE 540, emphasizing the generous GPU clearance of up to 415 mm.
3. Bedienungsanleitung
Once all components are installed and secured, connect your peripherals and power cable. The QUBE 540 features a reversible I/O panel for convenient access.
3.1 I/O Panel Usage
The I/O panel can be mounted on the top, bottom, left, or right side of the case. It includes:
- 2x USB 3.2 Gen1-Anschlüsse
- 1x USB 3.2 Gen2 Type-C port
- Audio Combo Jack
- Netzschalter

Figure 5: The adjustable I/O panel and movable handles, allowing for flexible placement and easy access to ports.
4. Wartung
Regelmäßige Wartung gewährleistet optimale Leistung und Langlebigkeit Ihrer PC-Komponenten.
4.1 Reinigung des Staubfilters
The QUBE 540 features mesh-optimized panels that act as dust filters. These can be easily removed for cleaning.
- Gently detach the magnetic mesh panels from the front and top of the case.
- Verwenden Sie eine weiche Bürste oder Druckluft, um den angesammelten Staub zu entfernen.
- Wipe the panels with a damp Verwenden Sie gegebenenfalls ein Tuch und achten Sie darauf, dass die Teile vor dem Wiederanbringen vollständig trocken sind.
Video 2: Comparison of Cooler Master Q300L V1 vs V2, showing removable mesh panels for cleaning. This demonstrates a similar feature to the QUBE 540's mesh-optimized design.
5. Fehlerbehebung
If you encounter issues with your PC build in the QUBE 540, consider the following common troubleshooting steps:
- Kein Strom: Ensure the power supply is correctly seated and all power cables (24-pin ATX, 8-pin CPU, GPU power) are securely connected. Check the power switch on the PSU.
- Kein Bildschirm: Verify that your monitor is connected to the graphics card (not the motherboard's integrated graphics ports, unless you are using integrated graphics) and that the GPU is fully seated in its PCIe slot with power cables attached.
- Überhitzung: Check fan connections and orientation. Ensure proper airflow by regularly cleaning dust filters. Verify CPU cooler installation and thermal paste application.
- Probleme mit der Bauteilpassung: The QUBE 540 is highly modular. If a component doesn't fit, consult the manual's configuration diagrams (Figure 3) to adjust internal brackets or reorient the case.
6. Spezifikationen
| Besonderheit | Detail |
|---|---|
| Marke | Kühler Meister |
| Serie | QUBE 540 |
| Modellnummer | Q540-LGNN-S00 |
| Gehäusetyp | Mittlerer Turm |
| Motherboard-Kompatibilität | Mini ITX, ATX, Extended ATX (up to 11" wide) |
| GPU-Freigabe | Up to 415 mm (without front fan) |
| Artikelgewicht | 17.86 Pfund |
| Produktabmessungen (L x B x H) | 17.26 x 8.86 x 19.37 Zoll |
| Material | Edelstahl, gehärtetes Glas |
| E/A-Bedienfeld | 2x USB 3.2 Gen1, 1x USB 3.2 Gen2 Type-C, Audio Combo Jack |
| Kühlmethode | Luft, Wasser |
| Montageart des Netzteils | Untere Montage |
7. Garantie und Support
For warranty information, please refer to the official Cooler Master website or the warranty card included with your product. For technical support, product registration, or to download the latest drivers and manuals, visit the official Cooler Master support page:
Offizieller Cooler Master WebWebsite
Bitte bewahren Sie Ihren Kaufbeleg für eventuelle Garantieansprüche auf.





