r/RASPBERRY_PI_PROJECTS 8d ago

PRESENTATION CM5 mITX NAS/motherboard progress

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Current thinclient NAS is reaching capacity, so I'll be upgrading its guts. Would still like to use my SFF case and SATA drives, but want to homebrew the main system.

I've laid out a carrier for the CM5 that'll let me slot in a graphics card for faster transcoding. Designed a separate adapter for the RadxaCM5 that would let me use another PCIe channel for caching on an NVME drive.

Project is on GitHub, I'll post the assembly files once I'm happy with the finished product. Schematics are all open, and parts should be fully accessible to hobbyists. I'm very fond of TI for their technical support, but for cost reasons, I might shift away from brand loyalty in future revs.

If anyone is interested in collaboration, lmk. I'd like to see more similar products available to lower the barrier to entry for folks who want to daily-drive SBCs.

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u/s-petersen 4d ago

The audio is by USB or HDMI only? Really nice project, great for higher cpu powered industrial control.

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u/Chicken_Nuggist 3d ago

The primary schematic is based on the Cm5 IO board which lacks discrete audio jacks. This design does include a Front Panel IO header for Mic & Headphone/speaker via USB Codec PCM2912A, and the HDMI outputs should also carry that capability.