Building a DIY mini PC involves selecting compatible compact components like a mini-ITX motherboard, low-profile CPU cooler, and SFX power supply. Assemble parts step-by-step, install an operating system, and optimize for space and cooling. This project offers customization for performance, portability, or aesthetics, with costs ranging from $300 to $1,500 depending on hardware choices.
Can Mini PCs Handle Video Editing and Graphic Design? A Comprehensive Review
Table of Contents
Top 5 Mini PCs in 2025
| Rank | Model | Processor | RAM | Storage | Price | Action |
|---|---|---|---|---|---|---|
| 1 | GEEKOM Mini IT12 (Best Performance) | Intel i5-12450H (8C/12T) | 16GB DDR4 | 512GB PCIe Gen4 SSD | $379.00 | Check Price |
| 2 | GMKtec N150 (1TB SSD) | Intel N150 (3.6GHz) | 16GB DDR4 | 1TB PCIe M.2 SSD | $191.99 | Check Price |
| 3 | KAMRUI GK3Plus (Budget Pick) | Intel N95 (3.4GHz) | 16GB DDR4 | 512GB M.2 SSD | $169.99 | Check Price |
| 4 | ACEMAGICIAN N150 (Cheapest 16GB) | Intel N150 (3.6GHz) | 16GB DDR4 | 256GB SSD | $139.99 | Check Price |
| 5 | GMKtec N150 (512GB SSD) | Intel N150 (3.6GHz) | 16GB DDR4 | 512GB PCIe SSD | $168.99 | Check Price |
What Components Do You Need to Build a Mini PC?
A mini PC requires a mini-ITX or micro-ATX motherboard, a compatible CPU (Intel or AMD), RAM (16–32GB DDR4), an M.2 NVMe SSD for storage, an SFX power supply, and a compact case. Optional parts include a dedicated GPU (low-profile) and cooling solutions like liquid AIOs or heat sinks. Ensure all parts fit the case dimensions.
How Do You Choose the Right Mini-ITX Case?
Prioritize case dimensions, cooling support (fan mounts/radiator space), and GPU compatibility. Popular options include the Cooler Master NR200 (supports full-sized GPUs) and the Velka 3 (ultra-compact). Check for front-panel ports, dust filters, and modular drive bays. Aluminum cases like the DAN A4-SFX offer premium builds but cost more than steel alternatives.
When selecting a mini-ITX case, consider future upgradability. Cases with removable drive cages or adjustable PCIe riser cables provide flexibility for component swaps. For example, the Lian Li Q58 features a dual-chamber design that separates the GPU and motherboard areas, improving thermal performance. Another critical factor is I/O connectivity – newer cases often include USB-C Gen 2 ports for faster data transfers. Below is a comparison of popular mini-ITX cases:
| Case Model | Dimensions (mm) | Max GPU Length | PSU Support |
|---|---|---|---|
| Cooler Master NR200 | 376 x 185 x 292 | 330mm | SFX/SFX-L |
| Velka 3 | 217 x 191 x 62 | 175mm | Flex ATX |
| DAN A4-SFX | 317 x 140 x 200 | 300mm | SFX |
What Cooling Solutions Prevent Overheating?
Use low-profile air coolers like the Noctua NH-L9i or 120mm AIO liquid coolers. Optimize case fan placement: intake at the bottom, exhaust at the top/rear. Undervolt CPUs/GPUs via BIOS or software like ThrottleStop to reduce heat. Thermal Grizzly Kryonaut paste improves heat transfer. Avoid overclocking in sub-10L cases.
Effective thermal management in compact builds requires balancing airflow and component selection. For CPU cooling, consider the Scythe Big Shuriken 3 – its 69mm height fits most mini-ITX cases while handling up to 120W TDP. Negative pressure setups (more exhaust fans than intake) can reduce dust buildup but may increase noise. For GPU-intensive tasks, deshroud mods with 120mm fans improve thermals by 5–8°C. Below are recommended cooling solutions based on case size:
| Case Volume | Recommended Cooler | Max TDP Support | Noise Level (dBA) |
|---|---|---|---|
| <5L | Noctua NH-L9a-AM4 | 65W | 23.6 |
| 5–10L | Corsair H60 AIO | 95W | 28.4 |
| >10L | Be Quiet! Dark Rock TF 2 | 220W | 26.8 |
“Mini PCs blend portability and power, but thermal design is critical. Always prioritize airflow over aesthetics in compact builds. Modular PSUs and custom cables can reduce clutter, improving both performance and upgradability.” — Alex Rivera, PC Build Consultant at TechFront Innovations
FAQs
- Is a DIY Mini PC Cheaper Than a Prebuilt?
- DIY builds often cost less than prebuilt equivalents, with savings of 15–30%. However, ultra-compact cases and SFX PSUs may increase expenses.
- How Long Does It Take to Assemble a Mini PC?
- First-time builders need 3–5 hours. Experienced users can finish in 1–2 hours, excluding OS installation and driver updates.
- Can a Mini PC Run AAA Games?
- Yes, with a mid-tier GPU (e.g., RTX 3060) and a capable CPU. Use 1080p medium settings for smooth gameplay. Ensure the PSU delivers at least 500W.