User Guide

Preparation

Before you begin, please prepare the following:

• A LattePanda Mu or LattePanda Mu Ultra compute module.
• A cooling solution for the compute module. Due to the high thermal density of the Mu Ultra compute module, an active cooler is recommended.
• A power adapter. If you are using the LattePanda Mu compute module, the minimum power requirement is 30W; if you are using the LattePanda Mu Ultra compute module, the minimum power requirement is 50W.
• Peripherals such as a WLAN wireless card, network cable, mouse, keyboard, and display screen.

Installation Guide

1. Open the LattePanda Mu Mini Carrier Board package and remove the carrier board from the anti-static bag.
2. Install any M.2 expansion modules as needed for your actual use, and secure them with the mounting screws.
   
3. Insert the Mu/Mu Ultra (with heatsink installed) into the slot at a 30° angle, press it down, secure it with screws, and connect the fan power.
   
4. Connect peripherals such as a mouse, keyboard, display screen, and network cable according to your actual usage.
   
   
5. Connect the power adapter and press the power button. The first boot may take some time; please wait patiently for 1–2 minutes.

Power Control

This carrier board provides four power input options, each accepting a wide input voltage range from 12V to 20V. You may use any one of them to power the board:

The power requirements for this carrier board depend on the module installed:

• With LattePanda Mu: Minimum 30W.
• With LattePanda Mu Ultra: Minimum 50W.
  If additional hardware is connected to the carrier board, the power supply capacity must be increased accordingly.

⚠️ Power Input Caution

• You may use any one of the available power input ports. If multiple sources are connected simultaneously, the board will automatically default to the source with the higher voltage.
• The DC 5.5x2.5mm power jack and the DC 2mm Pitch Power Connector (DC_IN1, 4-Pin) are internally hardwired. Strictly avoid connecting different power sources to these two ports at the same time to prevent hardware damage.

OCuLink Interface

The OCuLink connector is designed for high-performance hardware expansion, providing a direct PCIe link to the CPU for external devices via high-speed cabling.

• High Bandwidth: Supports native PCIe 3.0 and PCIe 4.0 protocols.
• Maximum Throughput: Delivers up to 64 Gbps total bandwidth when operating at PCIe 4.0 x4.
• Standard Connector: SFF-8611

⚠️Important Notes

• No Hot-Plugging: Standard OCuLink does not support hot-plugging. Always power off the LattePanda before connecting or disconnecting any OCuLink device to prevent hardware damage.
• OCuLink carries high-speed signals. Use reliable cables and ensure the cable length does not exceed 1 meter to maintain stable data transmission.
• The OCuLink port transmits data signals only and does not provide power to external devices. High-power peripherals, such as external graphics cards (eGPUs), require a dedicated external power source.

GPIO Pins

There are slight differences in GPIO pins when using the LattePanda Mu versus the LattePanda Mu Ultra.

Frequently Asked Questions

1. Can I directly install and use a previously owned LattePanda Mu compute module?
   Yes, but you will need to update the BIOS of the Mu compute module to unlock all features of the LattePanda Mu Mini Carrier Board.

2. Does the M.2 M Key slot support installing an AI accelerator card?
   No. AI accelerator cards require a special M.2 socket selection and a higher-power design for the power supply.