Building the Cleanest ITX PC: COOJ SF-3 & RTX 5070 Build Guide

Welcome back to the channel! Today, we are building a compact powerhouse using the brand-new NVIDIA RTX 5070 and the Intel Core Ultra 5 230F. We’re squeezing all this next-gen performance into the premium COOJ SF-3 ITX case.

In this video, I’ll walk you through the component selection, the assembly process in this 7.5L chassis, and finally, we’ll test the thermal performance and gaming benchmarks. If you are planning an SFF build for 2026, you don't want to miss this!

✨ Full Specs:

🧠 CPU: Intel Core Ultra 5 230F
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🧩 Motherboard: Maxsun Challenger H810 ITX WIFI
❄️ Cooler: ID-COOLING IS-53-XT Black
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🎮 GPU: ASUS PRIME RTX 5070 O12G
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🔥 RAM: Asgard Thor 7200MHz 32GB (2x16GB)
💾 Storage: Samsung 990 Pro 2TB NVMe
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⚡ PSU: Thermalright TR-TPF750
🖥️ Case: COOJ SF-3
Buy: https://s.click.aliexpress.com/e/_c40...

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Author: 我是机叔

Chapters:
0:00 Intro
0:24 Case details
2:48 Components overview
4:28 Build
5:48 Showcase

👇 Support the Channel: If you enjoyed this build, please drop a LIKE and SUBSCRIBE! It really helps me create more content like this. Let me know in the comments: What do you think of the RTX 5070 price-to-performance ratio?

#PCBuild #RTX5070 #SFF #ITX #GamingPC #IntelUltra5