# Explanation of videoCore metrics

**URL:** <https://community.homey.app/t/explanation-of-videocore-metrics/135662>\
**Category:** Questions & Help\
**Created:** [April 29, 2025, 4:28pm UTC](https://community.homey.app/t/explanation-of-videocore-metrics/135662 "2025-04-29T16:28:04Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![SunBeech](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/sunbeech/32/111391_2.png) [@SunBeech](https://community.homey.app/u/SunBeech)\
**Post date:** [April 29, 2025, 4:28pm UTC](https://community.homey.app/t/explanation-of-videocore-metrics/135662/1 "2025-04-29T16:28:05Z")

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Can anyone explain to me what the following videoCore related metrics mean, that are displayed in the System section of the [Homey Developer Tools](https://tools.developer.homey.app) page?

 ![IMG_1853](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/5/9/59965d82879f7afd5d8d36a8f4067b54928618bf.jpeg)

I updated today to Homey firmware v12.4.3 and since then, some of the undervoltage metrics report true. Before the update they were set to false.

Also the videoCoreUnderVoltageFalseCount keeps increasing. Before the update this was 0.

I have a Homey Pro 2023 (purchased end of June 2024) and am using the Homey Ethernet adapter.

I have read posts about the Homey power adapter not providing enough voltage. However those reports seem to relate to the initial batch of Homey Pros 2023. Also the metrics changed only after updating to v12.4.3.

I am not sure how to interpret these values. Maybe someone can explain.

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**Author:** ![Dijker](https://avatars.discourse-cdn.com/v4/letter/d/b9bd4f/32.png) [@Dijker](https://community.homey.app/u/Dijker)\
**Post date:** [April 29, 2025, 4:59pm UTC](https://community.homey.app/t/explanation-of-videocore-metrics/135662/2 "2025-04-29T16:59:58Z")

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Guess if you search for this you come across this and the articles below that opening post.

> [@Power supply can cause slow Homey Pro 2023](https://community.homey.app/t/power-supply-can-cause-slow-homey-pro-2023/78279):
>
> Email from Athom about the power supply of the Homey Pro 2023 which can cause HP23 to be slow (see screenshot below). Unsure if this applies to all batches already sent. The supplied power adapter doesn’t deliver enough power which can cause HP23’s CPU to underclock at a much lower speed. In the screenshot are instructions to find out if your HP23 underclocks as well. Athom will replace the adapter, but in the meantime you can try another power supply. Athom suggests a 15W adapter from Raspbe…

And

> [@\[APP\]\[Pro\] sysInternals - Shows Homey’s System Internals](https://community.homey.app/t/app-pro-sysinternals-shows-homey-s-system-internals/78650/3):
>
> # CPU Warning
> 
> If your Homey Pro (Early 2023) fe detected a `videoCoreUndervoltage` it slows down the CPU due to a to Low voltage. In this situation the Raspberry Pi Compute Module 4 (CM4) briefly starts throttling the CPU speed.

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<div class="post-metadata">

**Author:** ![SunBeech](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/sunbeech/32/111391_2.png) [@SunBeech](https://community.homey.app/u/SunBeech)\
**Post date:** [April 29, 2025, 5:30pm UTC](https://community.homey.app/t/explanation-of-videocore-metrics/135662/3 "2025-04-29T17:30:15Z")

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Thanks. I saw those/your articles 😊. In those posts however, the Homey seems to be constantly underpowered, if you look at the graphs presented.

In my case Homey still runs at 1,5Ghz and there is nu current undervolting situation. And the behavior occurred after the update only.

Also the `videoCoreUnderVoltageFalseCount` metric seems to be new, as I don’t see it mentioned/in the screenshots in those threads. I restarted my Homey and now all metrics are set to false again. Only the `videoCoreUnderVoltageFalseCount` metric is increasing.

There does not seem to to be a resource that describes those metrics.