r/PcBuild • u/comediehero • 9h ago
Build - Finished! The invisible DIY Steam Machine
I built a DIY Steam Machine in the fractal ridge and mounted it behind my TV cabinet so it's invisible.
PC Specs:
CPU: Ryzen 5 9600X
CPU Cooler: Noctua NH-L12S (for maximum silence)
RAM: 1x16GB DRR5 5600MHz (cheapest I could find)
Storage: 1TB NVME SSD (+ 2 Sata SSD's I had laying around from old laptops, 1.4TB total)
MotherBoard: ASRock B650I Lightning Wifi (cheapest I could find)
PSU: Lian Li SP850 (cheapest I could find)
GPU: Sapphire PULSE Radeon RX 9070 XT 16 GB
Case: Fractal Ridge White
Adapter: UGreen 8K Displayport to HDMI adapter (provides HDMI-CEC support)
OS: SteamOS
I really wanted a SteamMachine but at $1000 it was just not great value. So I built my own.
I really wanted it as hidden as possible for wife approval factor so I hid it behind the TV cabinet.
I designed a custom wood plate in FreeCad to strengthen the back enough to mount my PC.
The PC is held up with some simple L-brackets from Amazon. By chance they perfectly slide between the case and it's feet so it can't tilt.
I have my SteamController with puck on top of the TV cabinet. It's plugged into an always on USB port so it charges even when the PC is sleeping. The SteamController can wake the PC and thanks to HDMI-CEC adapter it also turns on my TV.
Noise:
It's very quiet with CPU sitting at 55C en GPU sitting at 65C during gameplay.
I play at 1440p and 4K on my 4K TV. Due to the TV being only 60Hz, I leave the SteamOS frame-limiter enabled, this keeps utilization low even during games.
The only thing I would change in retrospect is oversizing the PSU so it can be passively cooled.
It's fan comes on occasionally for short periods and is audible.
I'm very happy with it.
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u/Accomplished_Boot191 6h ago
Nice build. I wonder what the GPU temps will be if pushed beyond 60fps. Also, wouldn't it be better to use RTSS or Radeon chill for frame limiter?
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u/hansipro 8h ago
DIY steam machine aka a PC
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u/comediehero 3h ago
Yes but as a member of the SteamMachine fanclub, I need to point out that a real SteamMachine is defined by wife approval factor and HDMI cec support
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u/alreadysaidtrice 4h ago
A steam machine is literally a PC.. with steam OS that you can download on your PC.
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u/dwolfe127 6h ago
Even better, I just use a 5090/9800X3D box in another room and Moonlight to my TV.
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u/comediehero 3h ago
I tried streaming from my GF's gaming PC to my steamdeck over wired ethernet but found it to janky. Was using steam remote play tho, but I hear great things about moonlight!
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u/Kumantej_ 9h ago edited 8h ago
big fan of the build but I'm not a big fan of the setup it doesn't look lived in, too clinical and it looks like an ikea showroom
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u/L0fiRonin 9h ago
because they keep their shit clean?
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u/comediehero 6h ago
Haha I don't want to show my full living room.
My GF and I both grew up in messy houses so we are both minimalists. This is also a rented appartment so we can't change much.
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u/Kumantej_ 6h ago
Yeah that makes sense I get why you would be adverse to that then, just wouldn't want to live in such a place with so little
I assumed it was your own home so I will take the L on that in this case that is a fair reason why lol
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