1. Introduction
This manual provides essential information for setting up, operating, maintaining, and troubleshooting your HP EliteDesk 800 G4 Mini Desktop. The HP EliteDesk 800 G4 Mini is a compact micro form factor computer designed for efficiency and performance. It features an Intel Quad Core i5-8500T processor, 16GB DDR4 RAM, and a 512GB NVMe SSD, running on Windows 11 Pro.
Included with your HP EliteDesk 800 G4 Mini Desktop are:
- 1 x HP EliteDesk 800 G4 Mini Desktop
- 1 x Wireless Keyboard and Mouse Combo
- 1 x Power Cord
- 1 x TJJ Large Mouse Pad (color may vary)
2. Setup
Follow these steps to set up your HP EliteDesk 800 G4 Mini Desktop.
2.1 Unpacking and Placement
Carefully remove all components from the packaging. Place the mini desktop on a stable, flat surface with adequate ventilation to prevent overheating.
2.2 Connecting Peripherals
Connect your monitor, keyboard, and mouse to the appropriate ports on the mini desktop.

Image: Front Panel Ports. This image displays the front panel of the HP EliteDesk 800 G4 Mini Desktop, highlighting the USB Type-C port, two USB 3.1 ports, headphone connector, universal audio jack, hard drive activity light, and power button.

Image: Rear Panel Ports. This image shows the rear panel of the HP EliteDesk 800 G4 Mini Desktop, indicating two DisplayPort connections, two USB 3.1 ports, an external antenna connector, an ultra-slim cable lock slot, an RJ-45 Ethernet port, and the power connector.
- Monitors: Connect your monitor(s) to the DisplayPort outputs on the rear of the device. If your monitor requires an HDMI connection, a DisplayPort to HDMI adapter may be necessary (not included). The system supports dual monitors.
- Keyboard and Mouse: Connect the wireless keyboard and mouse receiver to an available USB port.
- Network: For a wired connection, connect an Ethernet cable to the RJ-45 port. For wireless connectivity, the device has built-in Wi-Fi.
2.3 Power Connection
Connect the power cord to the mini desktop's power input and then plug it into a wall outlet.
3. Operating Instructions
3.1 Powering On/Off
- To Power On: Press the power button located on the front panel. The power indicator light will illuminate.
- To Power Off: From the Windows 11 Pro operating system, click the Start button, then select Power > Shut down. Alternatively, you can press and hold the power button for several seconds to force a shutdown, though this is not recommended for regular use.
3.2 Initial Setup (Windows 11 Pro)
Upon the first power-on, the system will guide you through the Windows 11 Pro initial setup process. This includes setting up user accounts, network connections, and privacy settings. Follow the on-screen prompts.
3.3 Wireless Connectivity
Your HP EliteDesk 800 G4 Mini Desktop includes built-in Wi-Fi and Bluetooth capabilities.
- Wi-Fi: To connect to a wireless network, click the Wi-Fi icon in the system tray (bottom right of the screen), select your desired network, and enter the password if prompted.
- Bluetooth: To pair Bluetooth devices, go to Windows Settings > Bluetooth & devices, and follow the instructions to add a new device.
4. Maintenance
4.1 Cleaning
Regularly clean the exterior of the mini desktop with a soft, dry cloth. Ensure ventilation openings are free from dust and obstructions. Do not use liquid cleaners directly on the device.
4.2 System Updates
Keep your Windows 11 Pro operating system and drivers updated to ensure optimal performance and security. Windows Update can be accessed via Settings > Windows Update.
4.3 Hardware Upgrades
The HP EliteDesk 800 G4 Mini is designed for easy upgrades of RAM and storage (M.2 SSD). Refer to the official HP service manual for detailed instructions on accessing internal components. Exercise caution when performing any internal modifications.
5. Troubleshooting
This section addresses common issues you might encounter.
5.1 No Power
- Ensure the power cord is securely connected to both the mini desktop and a working electrical outlet.
- Verify the power adapter is functioning correctly.
- Try a different power outlet.
5.2 No Display on Monitor
- Check that the monitor is powered on and its video cable is securely connected to the mini desktop's DisplayPort.
- Ensure the correct input source is selected on your monitor.
- If using an adapter (e.g., DisplayPort to HDMI), ensure it is functioning correctly.
5.3 Wireless Keyboard/Mouse Not Responding
- Check the batteries in the keyboard and mouse.
- Ensure the wireless receiver is securely plugged into a USB port on the mini desktop.
- Try plugging the receiver into a different USB port.
5.4 System Slowdown
- Close unnecessary applications running in the background.
- Ensure Windows and drivers are up to date.
- Check for malware or viruses using reputable antivirus software.
For further assistance, refer to the HP support website or contact your product vendor.
6. Specifications
| Component | Specification |
|---|---|
| Model | HP EliteDesk 800 G4 Mini |
| Processor | Intel Core i5-8500T (6 Cores, 12 Threads, 2.1 GHz base, up to 3.50 GHz turbo, 9 MB Cache) |
| Operating System | Windows 11 Pro |
| Memory (RAM) | 16GB DDR4 |
| Storage | 512GB NVMe SSD |
| Graphics | Intel UHD Graphics 630 (Integrated) |
| USB Ports | 7 x USB 3.0 (including 1x USB Type-C on front) |
| Video Outputs | 2 x DisplayPort |
| Network | Intel I219LM Gigabit Network Connection (Ethernet), Built-in Wi-Fi |
| Wireless | Built-in Wi-Fi & Bluetooth |
| Audio | Headphone connector, Universal Audio Jack |
| Dimensions (LxWxH) | 7 x 7 x 2 inches |
| Weight | 7 pounds |
7. Warranty and Support
This HP EliteDesk 800 G4 Mini Desktop is a renewed product. For specific warranty details and support, please refer to the information provided by your seller, OdysseyComputersMD Warehouse. Additional protection plans may be available for purchase separately through the retailer.
For general product information and drivers, visit the official HP support website.