METALFISH BlockCase ITX A4 Open Frame PC Case User Manual

1. Introduction

The METALFISH BlockCase ITX A4 is an open-frame aluminum chassis designed for Mini-ITX and ITX motherboards, offering a unique and compact solution for DIY PC enthusiasts. This case supports vertical GPU installation, various PSU types (ATX/SFX/SFX-L), and liquid cooling setups, providing flexibility for powerful hardware configurations. This manual provides detailed instructions for assembly, specifications, and general usage guidelines to help you build your custom PC.

Important Note: All options for this product include only the case. Hardware components such as motherboards, GPUs, PSUs, coolers, and storage drives are NOT included.

2. Package Contents

Upon opening your METALFISH BlockCase ITX A4 package, you should find the following components:

• 2020 Alu profile bracket components
• Case Handle
• Handle installing screw kit
• Alu profile installing screw kit
• PSU installing screw kit
• GPU installing screw kit
• Panel installing screw kit
• Case foot installing screw kit
• Other assorted accessories and fasteners

3. Specifications

Below are the key specifications for the METALFISH BlockCase ITX A4:

4. Assembly Instructions

This section guides you through the assembly of your METALFISH BlockCase ITX A4. All accessories are provided in organized packs. Please refer to the diagrams for visual guidance.

4.1. Frame Assembly

The chassis is constructed using aluminum profiles. Begin by identifying the cross bars and vertical bars.

• Aluminum Profile Components:
  • NO.1 Cross Bar * 1
  • NO.2 Cross Bar * 1
  • NO.4 Cross Bar * 2
  • NO.5 Cross Bar * 2
  • NO.3 Vertical Bar * 2
• Fixing Vertical Bars to Cross Bars:
  • Use Hole #1 (closest to the edge, facing up) and Hole #2 (ITX mainboard position).
  • Insert the threaded M3 screws and tighten them securely.
• Fixing Vertical Bars to Base Bracket:
  • Attach the vertical bars to the base brackets using fastening screws and L-shaped slide nuts.
  • The mainboard bracket and base bracket can be fine-tuned for distance before final fixing.

4.2. Motherboard Installation

The BlockCase ITX A4 supports Mini-ITX and ITX motherboards.

• Positioning: Profile 1 is located at the top of the mainboard. Note the screw fixings for the mainboard.
• Securing: Secure the mainboard bracket to the base bracket. The mainboard bracket can be adjusted left or right for optimal positioning before being fixed.
• Use the provided mainboard fixing studs and M4 screws with slide nuts.

4.3. Power Supply Unit (PSU) Installation

The case supports ATX, SFX, and SFX-L power supplies. The PSU is mounted at the bottom of the chassis.

• Use the PSU fixing bracket to secure the power supply with three screws.
• Ensure proper alignment and secure fastening.

4.4. Graphics Processing Unit (GPU) Installation

This case is designed for vertical GPU installation, which requires an extension cable (riser cable).

• GPU Fixing: Use the GPU fixing bracket and GPU support bracket with M4 screws and slide nuts to secure the GPU.
• Extension Cable: An extension cable (riser cable) is necessary to connect the vertically mounted GPU to the motherboard. The cable is typically 33 cm long.
• Cable Quality: High-quality GPU extension cables are designed to minimize performance loss (typically around 5% in extreme cases).

4.5. Storage (HDD/SSD) and Cooling Installation

The case supports 2.5-inch and 3.5-inch HDDs/SSDs and various fan sizes.

• HDD/SSD: Use the provided 2.5'/3.5' HDD fixing screws to mount your storage devices. HDD/Fan fixing positions are available between the motherboard and the GPU.
• Fans/Liquid Cooler: The case has positions for 9cm, 12cm, and 14cm fans. It is recommended to install a 180mm or 240mm liquid cooler on top of the chassis for optimal cooling.

5. Operating Guidelines

Once your PC is fully assembled within the BlockCase ITX A4, operating it is similar to any standard desktop computer. Ensure all components are securely connected and cables are managed to prevent interference with cooling or moving parts.

• Power On: Use the power switch panel to turn on your system.
• Ventilation: As an open-frame case, it relies on natural airflow and installed fans for cooling. Ensure no obstructions block the path of air to your components.
• Placement: Place the case on a stable, flat surface away from excessive dust, moisture, or direct sunlight.

6. Maintenance

Regular maintenance helps ensure the longevity and optimal performance of your PC components within the open-frame case.

• Dust Cleaning: Due to its open design, the case may accumulate dust more easily. Regularly use compressed air or a soft brush to clean dust from components, especially fans, heatsinks, and radiators.
• Fastener Check: Periodically check all screws and fasteners to ensure they remain tight, especially after moving the case.
• Cable Management: Keep cables tidy to maintain good airflow and prevent them from interfering with fans or other components.

7. Troubleshooting

If you encounter issues during or after assembly, consider the following common troubleshooting steps:

• System Not Powering On:
  • Check all power connections, including the PSU to the wall, PSU to motherboard, and front panel power switch connection.
  • Ensure the power switch panel is correctly wired to the motherboard's front panel headers.
• Components Not Detected:
  • Verify that all components (motherboard, GPU, RAM, storage) are seated correctly in their respective slots and securely fastened.
  • For vertical GPUs, ensure the riser cable is properly connected at both ends and is functioning correctly.
• Overheating Issues:
  • Confirm that all fans are spinning and oriented correctly for optimal airflow.
  • Ensure CPU and GPU coolers are properly installed and making good contact with the components.
  • Check for any obstructions to airflow around the open frame.

8. User Tips

Based on common inquiries and user experiences, here are some tips for building with your BlockCase ITX A4:

• Motherboard Compatibility: This case is specifically designed for Mini-ITX and ITX motherboards. Ensure your motherboard adheres to these form factors, as larger boards like mATX are not supported.
• Cable Management: While an open frame offers aesthetic appeal, good cable management is crucial for a clean look and unobstructed airflow. Use zip ties or Velcro straps to bundle cables neatly.
• GPU Riser Cable: Invest in a high-quality PCI-E riser cable for your vertical GPU installation to ensure stable performance and minimize signal degradation.
• Cooling Solutions: Despite being an open frame, consider installing fans or a liquid cooler (180mm/240mm recommended) to maintain optimal temperatures for high-performance components.

9. Support & Documentation

For further assistance or detailed diagrams, please refer to the official user manual PDF:

• Download User Manual (PDF)

For any product-related inquiries or technical support, please contact METALFISH customer service through their official channels.