this post was submitted on 06 Jan 2024
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How to find a cheap ex company PC based on which Intel generation? (self.newzealand)
submitted 10 months ago by sylverstream to c/newzealand
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I'd like to buy an ex company PC to serve as home server, as an upgrade for my raspberry pi. It should run some selfhosted services like Frigate and Immich, and perhaps Jellyfin. I was thinking to buy an 9th gen Intel or later ex company PC. It should be energy efficient as well.

I tried looking at Trademe but you can't filter on CPU generation. I could search on the exact Intel cpu number but that seems too restrictive. Pbtech is too expensive what I saw. I haven't tried Marketplace but guess that's the same. Some reddit post suggested Dell Optiplex, but no idea how their type numbering works.

Any tips?

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[–] sylverstream 1 points 10 months ago (1 children)

Hi sorry to bother you, but I've been researching getting a HP elitedesk 800, probably g3. For Frigate they recommend a Coral. Mini PCIE is cheaper than usb, and with a mini pcie to pcie adapter I should be able to fit it in one of the pcie slots. I'm also planning to add a GPU. But perhaps I don't need the coral if I have a GPU, how's your experience with using a GPU? Would make it easier as it's very hard to find coral devices.

[–] TagMeInSkipIGotThis 2 points 10 months ago (1 children)

Yeah the difficulty of sourcing corals is exactly why i've not yet used one. I've used both GPU & CPU for detection and both have been fine. I switched to CPU because the GPU I had in this box originally was a Quadro and its power use and heat output was just rediculous. I've since bought a passive cooled GT1030 but I might not have even switched back to GPU over CPU since I installed - I only have 4 cameras in Frigate and the CPU is keeping up fine.

[–] TagMeInSkipIGotThis 1 points 10 months ago (1 children)

I figured i'd have a crack at enabling the GPU detector today and noticed that i'm currently not using CPU detectors anymore, i've at some point switched to using the OpenVINO one so its using the Intel iGPU I think. That must have been working well given I forgot that's what I was using :)

I'll let you know how I get on switching to the nVidia detector.

[–] TagMeInSkipIGotThis 1 points 10 months ago

Well the nVidia detector is a bit more fiddly to get going than the OpenVINO one; but not too hard, just a matter of going through the steps in the documentation.

You need to run a different image of the frigate container so it includes all the TensorRT stuff and separately you have to generate the models. The only hiccup I had there was setting the right GPU to generate on bc mine is only a 1030 disabling FP16 operations.

That's all running fine so now i'll just monitor it for a bit to see if it makes any significant difference to CPU load & case temperatures running the detections on the GPU instead of CPU.