Uploaded July 2026 | Updated September 2026, 2 weeks ago
In this video, we are putting together a custom Small Form Factor (SFF) Steam Machine running SteamOS. This Mini-ITX build was put together to out-perform the top-tier official Steam Machine, and it delivers 1.5x the performance while costing roughly $200 less. We go over the complete assembly process, install the official SteamOS recovery image, and test out heavy-hitting games at 1440p and 4K natively.
ROG STRIX B860-I GAMING WIFI: amazon.com/ASUS-STRIX-B860-I-GAMING-WIFI/dp/B0DQ68TV3W/ref=sr_1_1?crid=2JTTK93OGH8A5&dib=eyJ2IjoiMSJ9.7K-dDLJgwyBf3vsSSjYy-jFcVAyipmBeM_eIV7WN5vMteqAHDhWDNX5SZIoAKhjDbrmDrq3OeEU1-9BkLs_BA06LUgJG69ZwiboQD3ZnSmm1E9ZBzBFXKuyglv3fDH7dcC8ZZtvJ7ULGMdWZ7T5nN3QN9U8FQx-jUn2v5MlmMXeXMixQVAGxBWWrM5bdCSdLX47nCW_lKfV3IiL1nsh-0gNNQ6HftOg94mehpMTaCFY.wOB8U32M9Fh9jJrNI81dmmQStV9bftAkScvHZYbFi7A&dib_tag=se&keywords=rog%2Bmini%2Bitx%2Bb860&linkCode=sl2&linkId=3adeb4ec1d200abdfeeebcedc8713c76&qid=1783360815&sprefix=rog%2Bmini%2Bitx%2Bb860%2Caps%2C176&sr=8-1&th=1
Kingston FURY Beast DDR5 Memory: kingston.com/memory/gaming/kingston-fury-beast-ddr5-memory?speed=6000mt%2Fs&total%20(kit)%20capacity=32gb&kit=kit%20of%202&cas%20latency=36&dram%20density=16gbit&profile%20type=amd%20expo%20%2F%20intel%20xmp&color=black
KC3000 PCIe 4.0 NVMe M.2 SSD: kingston.com/en/ssd/kc3000-nvme-m2-solid-state-drive?capacity=2048gb
Intel 250K Plus: amzn.to/4p2tZr4
Radeon RX 9060XT: amzn.to/4vNMoe5
Mini ITX B860 Motherboard: amzn.to/4pp8xwZ
32GB DDR5: amzn.to/4f5U7Np
Mini ITX Case: amzn.to/4gY1rwZ
750W SFX PSU: amzn.to/3T4TITX
1TB M.2 SSD: amzn.to/4vTOhGa
Follow Me On Twitter: twitter.com/theetaprime
Follow Me On Instagram: instagram.com/etaprime
Vip-URCDKey 25% code for software: ETA
Windows 11 Pro Key($25):biitt.ly/RUZiX
Windows 11 Home Key($23):biitt.ly/SQKqi
Windows 10 Pro OEM Key($20):biitt.ly/KpEmf
Windows10 Home Key($17):biitt.ly/2tPi1
Windows 10 LTSC 2021 Key($15): biitt.ly/W564e
Office 2019 pro key($63):biitt.ly/o0OQT
2016 pro key($32): biitt.ly/xWmvn
Buy Windows 11 Pro Key at: vip-urcdkey.com
DISCLAIMER: This video and description contains affiliate links, which means that if you click on one of the product links, I’ll receive a small commission at no extra cost to you!
00:00 - The Custom SFF Steam Machine Concept
01:11 - Motherboard & CPU (Core Ultra 5 250K Plus)
02:02 - DDR5 RAM & NVMe Storage
02:44 - Mini-ITX Case Overview (Thermaltake TR100)
03:57 - SFX Power Supply
04:34 - Liquid Cooling Setup
05:32 - GPU Installation (RX 9060 XT)
06:18 - Fully Assembled SFF Build
07:05 - SteamOS Setup & Overview
08:19 - Benchmarks vs Official Steam Machine
10:26 - 1440p & 4K Gameplay Testing
13:22 - Final Thoughts & Conclusion
THIS VIDEO IS FOR EDUCATIONAL PURPOSES ONLY!
In this video, we are putting together a custom Small Form Factor (SFF) Steam Machine running SteamOS. This Mini-ITX build was put together to out-perform the top-tier official Steam Machine, and it delivers 1.5x the performance while costing roughly $200 less. We go over the complete assembly process, install the official SteamOS recovery image, and test out heavy-hitting games at 1440p and 4K natively.
ROG STRIX B860-I GAMING WIFI: amazon.com/ASUS-STRIX-B860-I-GAMING-WIFI/dp/B0DQ68TV3W/ref=sr_1_1?crid=2JTTK93OGH8A5&dib=eyJ2IjoiMSJ9.7K-dDLJgwyBf3vsSSjYy-jFcVAyipmBeM_eIV7WN5vMteqAHDhWDNX5SZIoAKhjDbrmDrq3OeEU1-9BkLs_BA06LUgJG69ZwiboQD3ZnSmm1E9ZBzBFXKuyglv3fDH7dcC8ZZtvJ7ULGMdWZ7T5nN3QN9U8FQx-jUn2v5MlmMXeXMixQVAGxBWWrM5bdCSdLX47nCW_lKfV3IiL1nsh-0gNNQ6HftOg94mehpMTaCFY.wOB8U32M9Fh9jJrNI81dmmQStV9bftAkScvHZYbFi7A&dib_tag=se&keywords=rog%2Bmini%2Bitx%2Bb860&linkCode=sl2&linkId=3adeb4ec1d200abdfeeebcedc8713c76&qid=1783360815&sprefix=rog%2Bmini%2Bitx%2Bb860%2Caps%2C176&sr=8-1&th=1
Kingston FURY Beast DDR5 Memory: kingston.com/memory/gaming/kingston-fury-beast-ddr5-memory?speed=6000mt%2Fs&total%20(kit)%20capacity=32gb&kit=kit%20of%202&cas%20latency=36&dram%20density=16gbit&profile%20type=amd%20expo%20%2F%20intel%20xmp&color=black
KC3000 PCIe 4.0 NVMe M.2 SSD: kingston.com/en/ssd/kc3000-nvme-m2-solid-state-drive?capacity=2048gb
Intel 250K Plus: amzn.to/4p2tZr4
Radeon RX 9060XT: amzn.to/4vNMoe5
Mini ITX B860 Motherboard: amzn.to/4pp8xwZ
32GB DDR5: amzn.to/4f5U7Np
Mini ITX Case: amzn.to/4gY1rwZ
750W SFX PSU: amzn.to/3T4TITX
1TB M.2 SSD: amzn.to/4vTOhGa
Follow Me On Twitter: twitter.com/theetaprime
Follow Me On Instagram: instagram.com/etaprime
Vip-URCDKey 25% code for software: ETA
Windows 11 Pro Key($25):biitt.ly/RUZiX
Windows 11 Home Key($23):biitt.ly/SQKqi
Windows 10 Pro OEM Key($20):biitt.ly/KpEmf
Windows10 Home Key($17):biitt.ly/2tPi1
Windows 10 LTSC 2021 Key($15): biitt.ly/W564e
Office 2019 pro key($63):biitt.ly/o0OQT
2016 pro key($32): biitt.ly/xWmvn
Buy Windows 11 Pro Key at: vip-urcdkey.com
DISCLAIMER: This video and description contains affiliate links, which means that if you click on one of the product links, I’ll receive a small commission at no extra cost to you!
00:00 - The Custom SFF Steam Machine Concept
01:11 - Motherboard & CPU (Core Ultra 5 250K Plus)
02:02 - DDR5 RAM & NVMe Storage
02:44 - Mini-ITX Case Overview (Thermaltake TR100)
03:57 - SFX Power Supply
04:34 - Liquid Cooling Setup
05:32 - GPU Installation (RX 9060 XT)
06:18 - Fully Assembled SFF Build
07:05 - SteamOS Setup & Overview
08:19 - Benchmarks vs Official Steam Machine
10:26 - 1440p & 4K Gameplay Testing
13:22 - Final Thoughts & Conclusion
THIS VIDEO IS FOR EDUCATIONAL PURPOSES ONLY!
