What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
For a dedicated mini PC, the straightforward option is Home Assistant Operating System (HAOS), installed with the official generic x86-64 image. The computer needs to be 64-bit capable and able to boot with UEFI. Once HAOS is running, connect devices through the appropriate Home Assistant integration; Zigbee, Thread, and Z-Wave devices may also require a compatible USB radio or controller.
Check that the mini PC is suitable
The generic x86-64 installation is intended for an Intel- or AMD-based 64-bit PC that supports UEFI boot. Home Assistant’s developer documentation says the board configuration aims to support most UEFI-capable x86-64 systems and is primarily aimed at Intel NUC mini PCs and similar devices. Its tested-hardware list is useful evidence for the systems it names, not a guarantee for every mini PC. See the generic x86-64 hardware requirements.
- Check that the processor and firmware support 64-bit UEFI boot.
- Make sure the mini PC has storage you can dedicate to Home Assistant. Internal SATA, SSD, M.2, or eMMC storage is typical; the installation guide says external USB storage is possible but not recommended.
- Plan to use Ethernet for first boot, as shown in the installation guide. Network hardware support varies; the developer documentation lists supported NIC families and some Intel Wi-Fi cards, not every network adapter.
- Use firmware settings to enable UEFI and disable Secure Boot, as directed by the official installation guide.
Home Assistant does not establish a universal minimum CPU or RAM specification for this setup in the cited guidance. Verify the exact mini PC’s hardware and firmware rather than relying on a generic performance claim.
Choose an installation type
HAOS: best fit for a dedicated mini PC
Home Assistant says HAOS is the recommended installation type for most users. It packages Home Assistant Core, Supervisor, and apps, making it the appliance-like route for a computer dedicated to Home Assistant. The tradeoff is that installing it takes over the target drive rather than preserving the existing operating system. See the installation overview.
Quick wins for a faster PC:
Repair Windows errors before they cause bigger problemsFix Now →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Clear out junk files and repair common Windows errorsFree Scan →#1 Best Overall
- 【Ryzen 5 3500U Processor】KAMRUI Essenx E2 Mini PC is equipped with AMD Ryzen 5 3500U (4-cores/8-threads, up to 3.7GHz) with integrated Radeon Vega 8 Graphics(1200MHz, 8 Core). The 3500U CPU operates at a base frequency of 2.1 GHz and a Boost frequency of 3.7 GHz. This DDR supports upgradable up to 32GB, SSD supports up to 2TB.(NOT INCLUED), KAMRUI E2 3500U Mini PC is ideal for light office work and home entertainment. KAMRUI E2 3500U is more than 35% more powerful and smoother in operation than the Intel N150, 33% faster than Intel N95, 28% performance boost over Intel i3-10110U, and 42% stronger processing power than AMD Ryzen 3 3200U.
- 【16GB DDR4 & 256GB SSD】The KAMRUI E2 mini computers is equipped with 16GB DDR4(Expandable up to 32GB) for faster multitasking and smooth application switching. 256GB M.2 SSD ensures fast startup times,fast file transfers and plenty of storage space,eliminating slow loading times and ensuring fast responsiveness.Storage space can RAM supports up to 32 GB, SSD supports up to 2TB (Not included)make file storage easier.
- 【4K Dual Display & USB 3.2 Type-A Port】KAMRUI E2 3500U mini desktop pc is equipped with an HDMI 2.0+DP 1.4 interfaces for faster transmission, Support Dual 4K@60Hz Display, E2 mini desktop computers is ideal for visual home entertainment, home office, conference rooms, etc. USB3.2 Gen1 Type-A Port×2 with a transfer speed of up to 5Gbps (10 times faster than USB 2.0) for efficient data transfer. The RJ45 1000M Gigabit Ethernet Port ensures a stable network connection.
- 【WiFi+Bluetooth stable connection】The Kamrui E2 micro pc have reliable and stable wireless connection, open websites in seconds, watch movies without buffering and download files smoothly, connect your monitor from WiFi or Ethernet, use a wireless keyboard and mouse through bluetooth, which will be powerful workstation for you.
- 【Versatile Ports】This KAMRUI E2 Small pc is equipped with HDMI 2.0×1(4K@60Hz)、DP1.4×1(4K@60Hz)、Gigabit Ethernet Port (RJ45, 10/100/1000Mbps) ×1、USB3.2 Gen1 Type-A Port×2（5Gbps）、USB2.0 Type-A Port×2、3.5mm Audio Jack ×1、DC In ×1、Power Button ×1
Container: for people already managing Linux and containers
Choose Home Assistant Container if you intend to run Home Assistant alongside other services and are comfortable maintaining the Linux host and container runtime. Home Assistant documents Docker Engine, not Docker Desktop, for this route. Container does not include apps, and some functions, including Thread and Z-Wave, are app-controlled, so plan for those needs before choosing it. The generic x86-64 guide links to Container instructions; those instructions cover host networking, device mappings, and Bluetooth access through D-Bus.
Install HAOS on the mini PC
- Back up the target drive. Writing HAOS erases the selected destination and removes its existing data and operating system. Confirm the destination carefully before proceeding.
- Get the current image and follow the official guide. Use the image linked from the generic x86-64 installation page rather than relying on a saved release link.
- Write HAOS to the target storage. The guide describes two approaches: boot a live Ubuntu USB environment and write HAOS to the mini PC’s internal disk, or use another computer and Balena Etcher to write the image to the boot medium. Its Ubuntu-assisted route calls for a USB flash drive of at least 8 GB.
- Boot the mini PC. If you used the Ubuntu method, remove the temporary flash drive after installation. Connect Ethernet and power on. The official guide says internet access is required at first start because Home Assistant downloads components.
- Open Home Assistant from another device. On a device on the same local network, open
http://homeassistant.local:8123in a browser and complete onboarding. If that name does not resolve, try the mini PC’s host name or IP address with port8123.
Connect devices using the right protocol
First identify how each device communicates, then choose the matching integration and any required radio or controller. The protocol alone does not guarantee that every model or feature is supported; check the integration and device-specific setup guidance. Home Assistant’s hardware FAQ and hardware catalog are useful starting points.
Rank #2
- WHY CHOOSE G3 ULTRA MINI PC PENTIUM GOLD 7505 - Choose the Intel Pentium Gold 7505 for snappier everyday responsiveness: It delivers up to 30% faster single-core performance than the Ryzen 5 3500U, making office apps and web browsing feel noticeably quicker, while its Intel UHD Graphics (48 EUs) provides 2.4x the GPU performance of the N100 & N150's 24-EU graphics, ensuring smoother 4K streaming and light photo editing.
- 16GB RAM MEMORY & 512GB STORAGE - GMKtec Nucbox G3 Ultra mini computer is prebuilt with 16GB LPDDR4 RAM at 3200 MT/s, you will enjoy a speedier experience with Built-in 512GB M.2 SATA Hard Drive. Our mini desktop pc boots up in seconds, work on multiple browser tabs, software applications and quickly transfers files. There is a primary slot and secondary expansion storage. Primary slot is M.2 2280 PCIE and secondary slot is M.2 2280 SATA.
- RICH INTERFACE - Nucbox pentium mini computer is equipped with 3* USB 3.2 Gen2 ports, up to 10Gbps/S, 1*USB 2.0, HDMI(4K@60Hz)*2, 3.5mm Audio Jack. Supports WiFi 6, and Gigabit Ethernet RJ45 2.5GbE network connectivity, Bluetooth 5.2. This Mini PC supports multiple device connection and can be used with servers, monitoring equipment, office equipment, displays, projectors, televisions, etc.
- 4K DUAL SCREEN DISPLAY - Mini desktop computer is equipped with upgraded Intel Graphics(max 1000MHz), supports 4K video playback and AV1 decoding, connect the pc with a projector as a home theatre, enjoy a variety of entertainments. Two HDMI 2.0 ports allows you to multi-task efficiently on two 4K@60Hz displays.
- UPGRADED COOLING FAN - The G3 Ultra has upgraded the cooling fan to reduce fan noise and thermals. We are using an upgraded thermal paste as well to help reduce heat on the CPU.
| Device connection | What the mini PC may need | What to check |
|---|---|---|
| Wi-Fi or Ethernet | Usually no protocol-specific USB radio; add the suitable integration in Home Assistant. | Confirm that the device and its desired functions are supported by the integration. |
| Zigbee | A Zigbee coordinator: a hardware radio adapter, typically a USB dongle, attached to the Home Assistant host. | Home Assistant’s ZHA documentation explains coordinator setup. The hardware catalog lists Connect ZBT-2 for Zigbee and Thread. |
| Thread or Matter over Thread | A compatible Thread adapter; the cited third-party-adapter instructions also call for HAOS, current updates, and a USB extension cable. | Check the adapter’s firmware and baud-rate instructions. Home Assistant lists Connect ZBT-2 for Zigbee and Thread; see its Thread documentation. |
| Z-Wave | A compatible Z-Wave controller, such as the Connect ZWA-2 listed by Home Assistant. | Check the controller’s supported SDK and firmware guidance in the Z-Wave controller documentation. |
| Bluetooth | For Container installations, Bluetooth requires D-Bus access and suitable device configuration. Requirements depend on the installation route. | Follow the Container instructions linked from the generic x86-64 guide. |
| Vendor-cloud integration | Internet access and the vendor’s supported integration or service may be required. | Check whether the features you need depend on the vendor’s cloud service. |
Understand what works when the internet is down
Home Assistant says devices using local protocols can communicate without internet access. That is different from a device whose integration depends on a brand’s cloud service: it may become unreachable when the internet is down. Offline behavior is not a blanket guarantee that every device feature will work. Check the relevant integration and the manufacturer’s requirements; see Home Assistant’s FAQ on local and cloud connectivity.
Quick Recap
Rank #3
- 12th Intel Alder Lake N95 Processor – The GMKtec G3 S Mini PC is powered by the 12th Gen Intel N95 processor with 4 cores, 4 threads, 6MB cache and a burst frequency up to 3.4GHz. Compared with N100/N5105/N5100/N5095, the N95 delivers up to 36% overall performance improvement. Perfect for routine tasks, office work, and home entertainment, this compact mini desktop is more convenient than traditional bulky PCs.
- 8GB RAM & 256GB SSD Storage – Pre-installed with 8GB DDR4 memory and a fast 256GB M.2 2242 SSD, the G3 S mini desktop offers quicker startup, smoother multitasking, and faster file transfers. Enjoy seamless performance whether you’re working on multiple applications, browsing, or streaming content.
- Rich Interfaces & Connectivity – The G3 S mini computer comes equipped with USB 3.2 (up to 10Gbps), dual HDMI 2.0 (4K@60Hz), and a 3.5mm audio jack. With support for WiFi 5, Bluetooth 5.0, and Gigabit Ethernet (RJ45 1000MbE), it connects easily with monitors, projectors, printers, office equipment, and other peripherals, making it versatile for both home and business use.
- Dual 4K Display Support – Featuring upgraded Intel UHD Graphics (up to 1000MHz), the G3 S supports 4K video playback and AV1 decoding for a smooth viewing experience. With dual HDMI outputs, you can connect two 4K@60Hz displays simultaneously, enabling efficient multitasking for work and entertainment.
- GMKtec WARRANTY - GMKtec offers a 1-year limited GMKtec's warranty for each mini PC, starting from the date of the purchase. All defects due to design and workmanship are covered. With a professional after sales team always ready to attend to your needs, you can simply relax and enjoy your mini PC.
Common setup problems to check
- The mini PC will not boot the installer: recheck that UEFI is enabled and Secure Boot is disabled, as directed by the generic x86-64 guide.
- The wrong operating system or drive was replaced: HAOS installation erases its selected target. Stop and verify the destination before writing; restore important files only from a backup.
- The setup page does not open: confirm that the mini PC has Ethernet and has completed its first boot, then try its host name or IP address with port 8123 if
homeassistant.localfails to resolve. - A Zigbee, Thread, or Z-Wave device is not discovered: confirm that the required coordinator or controller is connected and supported, and follow that integration’s setup instructions. Wi-Fi and Ethernet devices do not use these USB radios.
- Bluetooth or serial hardware is unavailable in Container: Container requires deliberate host and device configuration; Bluetooth needs D-Bus, and USB serial devices must be mapped into the container with appropriate permissions.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
