Home Assistant Yellow with CM5 - heat pads placement | Home Assistant | Page 1

brisk burrow Aug 5, 2025, 8:46 AM

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According to this: https://support.nabucasa.com/hc/en-us/articles/25606333033501-Home-Assistant-Yellow-Kit-with-CM5

Pads should be placed like this (see image)
If I do this, the heat sink wont fully cover? Is this as expected?

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My specific example

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I also guess I don't place the 3rd pad as I don't have that module. I guess it's the wifi since I ordered without.

rustic mango Aug 5, 2025, 3:20 PM

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Didn't know they sell them without wifi module :o
But yes this fit of the cooler is expected

plucky phoenix Sep 2, 2025, 6:29 AM

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Hey, new to HA and I have CM5 with wifi. Instructions tell me to install 3 of these pads but I only received 2. Any advice what to do?

bronze stump Sep 2, 2025, 3:48 PM

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Those are likely CM4 pads. Put them on like on this picture.

plucky phoenix Sep 2, 2025, 6:06 PM

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Thank you @bronze stump are you saying that the other components do not need to be covered?

bronze stump Sep 2, 2025, 6:15 PM

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They would benefit, but it isn't mandatory.

plucky phoenix Sep 2, 2025, 7:36 PM

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Thank you for the information, will proceed with this

cursive hamlet Jan 19, 2026, 4:33 PM

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Any idea how thick these pads should be? I'm moving from a CM4 to CM5 and want to make sure I cover all 3, so I'll need to pick up at least one new one.

bronze stump Jan 19, 2026, 7:34 PM

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I don't have the dimensions of the official CM5 passive cooler at hand, but the original CM4 ones (two) are:

Heatpad Memory: 10x15x1.8mm

Heatpad SoC: 12x12x0.3mm

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These are dimensions of the pads of a third party CM5 passive cooler. Those might help.

#Home Assistant Yellow with CM5 - heat pads placement