1. Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your Fantech CG73 Mid Tower Gaming PC Case. Please read this manual thoroughly before beginning assembly or use to ensure proper functionality and safety.
2. Safety Information
- Always disconnect the power supply from the wall outlet before installing or removing any components inside the PC case.
- Handle all components with care to prevent damage from static electricity. Consider using an anti-static wrist strap.
- Keep small parts and packaging materials away from children.
- Ensure proper ventilation around the PC case to prevent overheating.
- Do not expose the case to water or excessive humidity.
- The tempered glass panel is fragile; handle with extreme care to avoid breakage.
3. Package Contents
Verify that all items are present in your package:
- Fantech CG73 Mid Tower Gaming PC Case
- 4 x Pre-installed RGB Fans
- Accessory Box (screws, cable ties, standoffs, etc.)
- User Manual (this document)
4. Product Overview
Familiarize yourself with the key features and components of the Fantech CG73 PC case.

Figure 4.1: Front view of the Fantech CG73 Mid Tower Gaming PC Case, showcasing the hexagonal design and pre-installed RGB fans.
4.1 Fan Support and Cooling
The HEXA CG73 case supports up to 6 RGB fans, providing extreme heat transfer and vibrant RGB lighting. It comes with 4 pre-installed fans.

Figure 4.2: Internal view highlighting fan installation points: 1. Rear fan, 2. Top fans, 3. Front fans, 4. Bottom fans. The case includes 4 pre-installed fans.
4.2 Inner Structure and Motherboard Compatibility
The CG73 case is designed to accommodate various motherboard form factors and storage devices.

Figure 4.3: Internal layout showing support for ATX, Micro-ATX, and Mini-ITX motherboards, along with dedicated installation locations for 1 SSD and 1 HDD.
4.3 Component Clearance
Ensure your components fit within the case's maximum supported dimensions.

Figure 4.4: Component clearance specifications: Maximum GPU length of 300mm, maximum CPU cooler height of 165mm. Supports ATX, Mini-ITX, and Micro-ATX motherboards. Motherboard and GPU are not included.
4.4 Handy I/O Ports
The top-front panel provides convenient access to essential ports.

Figure 4.5: Top-front I/O panel featuring one USB 3.0 port and two USB 2.0 ports for direct access, along with audio jacks and power/reset buttons.
5. Setup and Installation
Follow these steps to install your PC components into the Fantech CG73 case.
- Prepare the Case: Carefully remove the side panels. The tempered glass panel should be handled with extreme care.
- Install Motherboard: Align your ATX, Micro-ATX, or Mini-ITX motherboard with the standoffs inside the case. Secure it with the provided screws.
- Install CPU Cooler: If not already installed, mount your CPU cooler. Ensure it does not exceed the maximum height of 165mm.
- Install Graphics Card (GPU): Insert your GPU into the appropriate PCIe slot on the motherboard. Ensure it does not exceed the maximum length of 300mm. Secure it with screws.
- Install Storage Drives:
- SSDs: Mount 2.5-inch SSDs in the designated SSD trays/mounts.
- HDDs: Mount 3.5-inch HDDs in the HDD cage.
- Install Power Supply (PSU): Slide your PSU into the dedicated compartment at the bottom of the case. Secure it with screws from the rear.
- Cable Management: Route all power cables and data cables through the cable management cutouts to the back of the motherboard tray. Connect them to the respective components. Ensure fan and RGB cables are connected to the motherboard or a fan controller.
- Reattach Panels: Once all components are installed and cables are managed, carefully reattach the side panels.
6. Operating Instructions
After assembly, connect your peripherals and power on your system.
- Power On: Connect the power cable to your PSU and a wall outlet. Press the power button on the top-front I/O panel.
- RGB Control: The pre-installed RGB fans are typically controlled via your motherboard's RGB software (if connected to an RGB header) or a dedicated RGB controller (if included or purchased separately). Refer to your motherboard manual for specific RGB software instructions.
- USB Ports: Use the USB 3.0 and USB 2.0 ports on the top panel for connecting external devices.
- Audio Jacks: Connect your headphones and microphone to the audio jacks on the top panel.
7. Maintenance
Regular maintenance helps ensure optimal performance and longevity of your PC case and components.
- Dust Cleaning: Periodically clean dust filters (if present) and internal components using compressed air. Ensure the system is powered off and unplugged before cleaning.
- Fan Cleaning: Gently clean fan blades with a soft brush or compressed air to prevent dust buildup, which can impede airflow.
- Exterior Cleaning: Wipe the exterior of the case with a soft, damp cloth. Avoid abrasive cleaners or solvents. For the tempered glass, use a glass cleaner and a microfiber cloth.
- Cable Management Check: Occasionally check cable routing to ensure no cables are obstructing airflow or fan operation.
8. Troubleshooting
This section addresses common issues you might encounter.
| Problem | Possible Cause | Solution |
|---|---|---|
| PC does not power on. | Power cable loose, PSU switch off, front panel connectors incorrect. | Check all power connections. Ensure PSU switch is ON. Verify front panel power button connection to motherboard. |
| Fans are not spinning or RGB not lighting up. | Fan/RGB cables disconnected, incorrect connection to motherboard/controller. | Check fan power and RGB signal cable connections. Ensure they are securely plugged into the correct headers. |
| Overheating issues. | Poor airflow, dust buildup, insufficient fan speed. | Ensure all fans are spinning correctly. Clean dust filters and internal components. Verify fan orientation for optimal airflow. |
| USB ports not working. | Front panel USB cable disconnected from motherboard. | Check the USB 3.0 and USB 2.0 headers on the motherboard are correctly connected to the case's front panel cables. |
9. Specifications
| Feature | Detail |
|---|---|
| Brand | Fantech |
| Model Number | CG73 |
| Type | Mid Tower Gaming PC Case |
| Color | Black |
| Material | Tempered Glass |
| Motherboard Support | ATX, Micro ATX, Mini ITX |
| Pre-installed Fans | 4 x RGB Fans |
| Max GPU Length | 300 mm |
| Max CPU Cooler Height | 165 mm |
| Storage Bays | 1 x 2.5" SSD, 1 x 3.5" HDD |
| I/O Ports | 1 x USB 3.0, 2 x USB 2.0, Audio In/Out |
| Cooling Method | Air |
| Item Weight | 5 Kilograms |
10. Warranty and Support
For warranty information and technical support, please refer to the official Fantech website or contact your local retailer. Keep your proof of purchase for warranty claims.
For further assistance, visit: www.fantechworld.com





