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How to reenable undervolting in 2020 Dell Laptops by editing EFI variables

2021 Update: Based on post and Reddit comments, the approach to unlock undervolting works for a number of models, including the XPS, Inspiron, G5, 11th Generation Intel processors, and 2021 Dell models and other lines. If it works for you, please leave a comment below so others may know! Disclaimer: Changing voltages or editing BIOS settings not surfaced by your…

But I discovered there are a few ways to keep the laptop cooler, including the ability to unlock undervoltingfor the Comet Lake 10750H processor(skip to this section for this) without needing to flash a modded BIOS. The following steps allowed me to double my battery life, drop my idle temps by 20°C, and improve my FPS, in reversible ways that shouldn’t void the warranty, and most apply to other 2020 Dell models like the XPS and Inspiron as well: Luckily, most Dells have an option in the BIOS to prevent Windows from automatically updating your firmware, keeping your undervolt safe (but potentially exposing you to security flaws that go unpatched).

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