MINISFORUM UM790 Pro Mini PC User Manual

1. Introduction

The MINISFORUM UM790 Pro Mini PC is a compact and powerful micro computer designed for various computing tasks, from everyday use to demanding professional applications. Featuring the AMD Ryzen 9 7940HS processor and Radeon 780M Graphics, it offers high performance in a small form factor. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your device.

Figure 1: MINISFORUM UM790 Pro Mini PC, a compact and powerful micro computer.

2. Setup

2.1 Package Contents

Before you begin, ensure all items are present in the package:

• 1x Mini PC
• Power Adapter
• HDMI Cable
• VESA Mount Bracket (for monitor mounting)
• User Manual (this document)

2.2 Connecting Your Mini PC

Follow these steps to connect your MINISFORUM UM790 Pro Mini PC:

1. Power Connection: Connect the power adapter to the DC 19V port on the rear of the Mini PC and plug it into a power outlet.
2. Display Connection: Connect your monitor(s) to the Mini PC using the HDMI or USB4 ports. The device supports up to four displays simultaneously (2x HDMI 4K@60Hz, 2x USB4 8K@60Hz).
3. Peripheral Connection: Connect your keyboard, mouse, and other USB devices to the available USB 3.0 or USB4 ports.
4. Network Connection: For wired internet, connect an Ethernet cable to the RJ45 2.5G LAN port. For wireless internet, ensure your Wi-Fi network is available and configure it after initial boot-up.

Figure 2: Rear and front view of the MINISFORUM UM790 Pro Mini PC showing various ports including HDMI, USB4, RJ45 LAN, and USB 3.2 Gen2 Type-A.

2.3 Initial Boot-up

Press the power button on the front of the Mini PC. The system will boot up, and you may be guided through the initial Windows 11 Pro setup process if it's the first time using the device.

2.4 VESA Mount Installation

The MINISFORUM UM790 Pro can be mounted to the back of a VESA-compatible monitor using the included bracket. This saves desk space and provides a cleaner setup.

3. Operating Your Mini PC

3.1 Processor and Graphics Performance

Equipped with the AMD Ryzen 9 7940HS processor (8 Cores/16 Threads, up to 5.2GHz) and AMD Radeon 780M Graphics, the UM790 Pro delivers robust performance for multitasking, content creation, and gaming. The "Zen 4" architecture provides improved single-core performance.

3.2 Multi-Display Support

The Mini PC supports up to four displays simultaneously, enhancing productivity for complex workflows. Utilize the 2x HDMI (4K@60Hz) and 2x USB4 (8K@60Hz) ports for extended desktop or mirrored displays.

Figure 3: The UM790 Pro supporting quadruple display output for enhanced productivity.

3.3 High-Speed Connectivity

Benefit from high-speed data transfer and network capabilities:

• USB4 Ports: Dual USB4 ports offer up to 40Gbps data transfer, 8K@60Hz video output, and support Power Delivery (PD). This allows for single-cable connection to compatible monitors or docking stations.
• Wi-Fi 6: Experience faster wireless speeds, reduced latency, and improved coverage compared to Wi-Fi 5.
• 2.5G Ethernet: The RJ45 2.5G Ethernet port provides a fast and stable wired network connection.

Figure 4: The Mini PC connected via a single USB4 cable, demonstrating Power Delivery support.

Figure 5: Comparison of Wi-Fi 6 vs Wi-Fi 5 speeds and the 2.5G Ethernet port for fast network connectivity.

3.4 Storage and Memory Expansion

The UM790 Pro comes with pre-installed 64GB DDR5 RAM (16x2 SODIMM slots, upgradable to 32GB per slot) and a 1TB 2280 PCIe4.0 SSD. It features two PCIe4.0 SSD slots, allowing for up to 2TB per slot (total 4TB) for extensive storage needs.

Figure 6: Illustration of the high-speed DDR5 RAM modules within the Mini PC.

Figure 7: Exploded view showing the internal layout, including SODIMM slots for DDR5 RAM and M.2 2280 PCIe4.0 SSD slots for storage expansion.

4. Maintenance

4.1 Cooling System

The UM790 Pro features the Cold Wave 2.0 Thermal System, which includes liquid metal cooling and active cooling for memory and SSDs. This system is designed for efficient heat dissipation and quiet operation.

Figure 8: Diagram illustrating the Cold Wave 2.0 High Efficiency Cooling System with active memory and hard drive cooling.

4.2 General Care

• Keep the Mini PC in a well-ventilated area to ensure optimal airflow.
• Avoid blocking the ventilation holes.
• Clean the exterior with a soft, dry cloth. Do not use liquid cleaners.
• Periodically check for dust accumulation in the vents and gently clean with compressed air if necessary.

5. Troubleshooting

5.1 No Power

• Ensure the power adapter is securely connected to both the Mini PC and a working power outlet.
• Verify the power outlet is functional by plugging in another device.
• Check the power adapter for any visible damage.

5.2 No Display Output

• Confirm that the monitor is powered on and set to the correct input source (HDMI/USB4).
• Try connecting the Mini PC to a different monitor or TV to rule out monitor issues.
• Ensure display cables are securely connected to both the Mini PC and the monitor.
• If using multiple displays, try connecting only one display at a time to isolate the issue.

5.3 Network Connectivity Issues

• For wired connections, ensure the Ethernet cable is properly connected and the router/modem is working.
• For Wi-Fi, check if Wi-Fi is enabled in the operating system settings.
• Restart your router/modem and the Mini PC.
• Ensure Wi-Fi drivers are installed and up to date.

5.4 System Performance Issues

• Close unnecessary applications running in the background.
• Check for sufficient free storage space on the SSD.
• Ensure the cooling vents are not obstructed and the system is not overheating.
• Update drivers for graphics, chipset, and other components.

6. Specifications

7. Warranty and Support

7.1 Warranty Information

MINISFORUM products typically come with a manufacturer's warranty. Please refer to the warranty card included with your product or visit the official MINISFORUM website for detailed warranty terms and conditions specific to your region and purchase date.

7.2 Customer Support

For technical assistance, troubleshooting, or general inquiries, please contact MINISFORUM customer support through their official channels. You can find more information and contact details on the MINISFORUM Brand Store on Amazon or their official website.

7.3 Protection Plans

Additional protection plans may be available for your product. For details on extended coverage options, please check the product page where you made your purchase or inquire with your retailer.