# Power supply can cause slow Homey Pro 2023

**URL:** <https://community.homey.app/t/power-supply-can-cause-slow-homey-pro-2023/78279>\
**Category:** Questions & Help\
**Tags:** homey-pro-2023\
**Created:** [March 23, 2023, 4:22pm UTC](https://community.homey.app/t/power-supply-can-cause-slow-homey-pro-2023/78279 "2023-03-23T16:22:42Z")\
**Posts on this page:** 1\
**Showing post:** 146

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**Author:** ![Peter\_Kawa](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_kawa/32/173848_2.png) [@Peter\_Kawa](https://community.homey.app/u/Peter_Kawa)\
**Post date:** [September 29, 2024, 11:04pm UTC](https://community.homey.app/t/power-supply-can-cause-slow-homey-pro-2023/78279/146 "2024-09-29T23:04:10Z")

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[That power unit](https://homey.app/en-gb/store/product/hy0031/) is fine.  
It should deliver _ **5.2V** _ and it does, according to this :

 ![1000035271](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/4/1/41828b536f811376682774d3a0b13c32a3791da0.jpeg)

When you still happen to have the original shipped power unit, which delivers 5.0V, it could cause performance drops when using an ethernet adapter.

Athom communicated the issues with the first batch of power units, and offered to have it replaced by a 5.2V model, free of charge.  
See this post:

> [@Power supply can cause slow Homey Pro 2023](https://community.homey.app/t/power-supply-can-cause-slow-homey-pro-2023/78279/126):
>
> New E-Mail slight_smile Get your updated power adapter Hi , Our new-and-improved power adapters are available at our warehousing partner, and ready to be shipped to you! In this email, you can find your personal coupon code to order 1 free power adapter, or a year of free Homey Pro Back-ups, if you want. Your coupon code: Option 1 — Free replacement adapter To get a free replacement adapter, add it to your cart using the link below, and check out. The link should redirect you to the righ…

\_  
Only looking at the CPU graph is not a good indicator, maybe it just doesn’t need to step up.  
You’d look at this value to discover low voltage issues:

> [@\[APP\]\[Pro\] sysInternals - Shows Homey’s System Internals](https://community.homey.app/t/app-pro-sysinternals-shows-homey-s-system-internals/78650/1):
>
> I first created it ONLY for 2023 for the Alert when _ **videoCoreUndervoltageOccured** _ was flipped to true

> [@\[APP\]\[Pro\] sysInternals - Shows Homey’s System Internals](https://community.homey.app/t/app-pro-sysinternals-shows-homey-s-system-internals/78650/3):
>
> You are redirected here from a Alert on your Timeline: fe: When you see the Homey Pro is LOW on free Memory \< 20% [Low on Free Memory](https://community.homey.app/t/topic/78650/3#low-on-free-memory-2) A CPU Alarm Occured! Please Check sysInternal Alarms device. For more info read: [CPUWarning](https://community.homey.app/t/topic/78650/3#cpu-warning-1)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. [image] and [image] Maybe you where one …

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_[View the full topic](https://community.homey.app/t/power-supply-can-cause-slow-homey-pro-2023/78279)._