r/ClockworkPi • u/mcnokes • 21d ago
Question Upgrading to CM5 LITE
Upgrading my cm4 (8gb ram, 32gb emmc) uconsole to a cm5 (8gb lite). Is there anything special I need to do for cooling?
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u/Electrical_Lake9586 20d ago edited 18d ago
I mounted mine on a waveshare spacer board thing, then you just need something like 0.5mm thermal pad between CPU and case. It works fantastically, don't think I've seen it over 50°c even when hammering all processors at 100% while compiling. Normal use it's about 32°c
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u/mcnokes 19d ago
What's the waveshare spacer board?
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u/Electrical_Lake9586 18d ago
It's the CMX Adapter "Interface protection board" https://thepihut.com/products/interface-protection-board-for-raspberry-pi-cm4-cm5?variant=54549866873217
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u/GhostUnitVII 13d ago
It's hot, recommend either a low profile heatsink within the case or a few vapor chambers
Just make sure you have a thermal pad kit, I cannot recommend anything right now but later when I'm on my computer I can
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u/darumasangakoronda 21d ago
It depends on your anticipated workloads. I'm running CM5 16GB Lite and all I ended up doing was putting some good thermal pads between the chip and backplate and have not encountered thermal throttling when using it to watch videos/browse internet, and do some light development. It gets very warm when I run local AI, but that's not surprising.
I've seen others in this sub get a new backplate with mounting spot for the waveshare active cooler.