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PC Enclosure Installation Guide

Case Compatibility Requirements​

The Radxa O6 adopts the Mini-ITX form factor (170mm × 170mm) and is compatible with standard Mini-ITX chassis. When selecting a chassis, please ensure:

  • At least 25mm of clearance above the motherboard to accommodate cooling components
  • The chassis has good thermal ventilation design
  • If using an ATX power supply, the chassis must support standard ATX power supplies
  • Front panel interfaces must be compatible with the motherboard
  • Sufficient space inside the chassis for PCIe device installation (if needed)

Cooling Installation​

The Radxa O6 comes with a pre-installed heatsink and fan by default. If you wish to replace the heatsink, please refer to the following instructions. For the disassembly guide of the pre-installed heatsink, please check Heatsink 8420B Disassembly.

CPU Cooling​

  • Mounting hole spacing: 75mm × 75mm
  • Supported types: Active and passive cooling
  • Recommended TDP handling capacity: 30W

Fan Installation​

  • 4-pin PWM fan connector
  • Supports speed monitoring
  • Fan control available through UEFI

Cooling Notes​

  • Apply an appropriate amount of thermal paste when replacing the heatsink
  • Ensure good contact between the heatsink and SoC
  • Maintain good airflow inside the chassis to prevent thermal throttling

Temperature Monitoring​

  • Operating temperature range: 0°C ~ 40°C
  • Thermal throttling may occur above 80°C
  • Monitor temperatures using system tools

Motherboard Installation​

Preparing the Chassis​

  1. Remove the side panel and any protective covers from the chassis
  2. Install Mini-ITX standoffs in the chassis
  3. Ensure proper grounding between the chassis and motherboard

Installing the Motherboard​

  1. Align the motherboard with the pre-installed standoffs
  2. Match the I/O shield with the rear chassis opening
  3. Secure the motherboard using four M3 screws:
    • First, partially tighten two diagonal screws.
    • Check the motherboard position; if adjustment is needed, loosen the screws, adjust, and retighten.
    • Then tighten the remaining two screws to ensure the motherboard is firmly secured.
  4. Recommended torque: 0.5 Nm

Mounting Holes

Front Panel Connections​

Follow these steps to connect the front panel interfaces:

1. Power Button & LED Headers​

2-4: Power LED +/-
6-8: Power Switch
5-7: Reset Button
1-3: HDD LED

Front Panel Headers

2. USB 2.0 Headers​

  • Supports two USB 2.0 ports
  • Pin 1 is marked with a triangle
  • Pay attention to the orientation when connecting

3. Audio Header​

  • HD Audio compatible
  • Supports front panel 3.5mm audio jack
  • Pin 1 indicates the orientation

Front USB 2.0 & Audio Headers

How to Install Power Button, Reset Button, and LED Headers​

  • Locate the F_PANEL header on the Radxa O6 motherboard, which is used to connect the power button, reset button, power LED, and HDD LED.

  • Follow the diagrams below to correctly connect each header, paying attention to polarity.

  • Power LED

    Power LED

  • Power Button

    Power Button

  • Reset Button

    Reset Button

How to Install Front USB 2.0 Header​

  • Locate the F_USB header on the motherboard, which is used to connect the front panel USB 2.0 ports.

  • This header features a foolproof design: it's actually a 10-pin socket with one pin missing to prevent incorrect insertion. When installing, align the missing pin and insert the connector.

Front USB 2.0

How to Install Front Audio Header​

  • Locate the F_AUDIO header on the motherboard, which is used to connect the front panel audio port.

  • This header also follows a 10-pin design but actually only has 9 pins. When installing, align the missing pin for correct insertion.

Front Audio

Additional Component Installation​

1. Storage Device Installation​

  • M.2 M-Key Slot: For NVMe SSD
    • Supports PCIe Gen4 x4
    • Compatible with 2280 form factor
  • Use the retention screw for installation

2. Wireless Network Card Installation​

  • M.2 E-Key Slot:
    • Supports PCIe Gen4 x2 + USB
    • Compatible with standard WiFi/Bluetooth modules
  • If using a wireless network card, install the antennas

3. PCIe Device Installation​

  • x16 Slot (actually operates at x8 Gen4)
  • Supports full-length PCIe devices
  • Ensure sufficient installation space in the chassis
  • Secure the device with bracket screws

NVMe SSD and Wireless Module Installation

Power Connections​

The Radxa O6 supports multiple power input methods:

  • Connect the 24-pin ATX power connector
  • Ensure the power supply is at least 65W
  • Recommendation: Use 120W or higher for optimal performance

2. Power Connection Sequence​

  1. Connect the power supply to the motherboard
  2. Connect the power supply to the AC outlet
  3. Turn on the power supply before booting the system

Installing the ATX Power Connector​

  • Before installation, ensure the ATX power supply is unplugged to prevent hardware damage.

  • Align the ATX power connector with the 24-pin ATX power socket on the motherboard, ensuring the notch on the connector matches the protrusion on the socket for correct orientation.

  • Insert firmly with both hands, ensuring level insertion without tilting. You should hear a slight "click" when properly installed.

ATX Power Connector

Installation Completion Checklist​

  • All screws are properly tightened
  • Power connections are secure
  • Front panel headers are correctly connected
  • Cooling solution is properly installed
  • Storage devices are securely mounted
  • PCIe devices are firmly seated
  • No loose cables or components inside the chassis

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