this post was submitted on 21 Aug 2023
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The original was posted on /r/amdlaptops by /u/cyclopscoder on 2023-08-19 00:12:33.


AMD released updated Ryzen Chipset software, version 5.08.02.027. In addition to bug fixes for its various components, the package includes a new component — AMD PMF-7040Series driver.

According to a post under the article, the new driver:

… Looks to be responsible for adjusting power and performance ratios focusing on mobile devices …

SubGroup = {C763B4EC-0E50-4B6B-9BED-2B92A6EE884E}, "AMD Power Slider", "Adjust AMD Power Slider options"

Setting = {38cab4d5-db09-449f-9db5-1c91c909b6d4}, "PMF Controller", "Controls the thermal power solution"

Value = 1, "Better battery", "Enable some AMD power savings feature to increase battery life", %REG_DWORD%, 0x1

Value = 2, "Better performance", "Enable more performance gaining features", %REG_DWORD%, 0x2

Value = 3, "Best performance", "Enable all possible AMD performance gaining features", %REG_DWORD%, 0x3

Hopefully these drivers further improve battery life of the 7040 processors like the 7940HS, 7840HS, 7840S, 7840U and 7640U. Not sure if this release would address Z1 processors as they are also based on the 7040 series.

Maybe someone can report if these drivers do improve battery performance.

Article: AMD Updates Ryzen Chipset Drivers

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