I have been experiencing power throttling on my Dell G5 5587 laptop with an Intel Core i7 8750H CPU. This laptop was purchased in December, and is marketed as a gaming laptop. However, when gaming or performing any other CPU and GPU intensive tasks, the power limit is reduced from its standard 45W to 15W, causing the CPU to throttle down to 0.8 GHz from its Turbo speed of 4.0 GHz.

The configuration of the laptop is as follows:

  • Dell G5 5587 chassis
  • Intel Core i7 8750H 6×2.2GHz (up to 4.2 GHz)
  • 16 GB DDR4-2666 RAM
  • NVIDIA GeForce GTX1060 Max-Q Design with 6 GB VRAM
  • Toshiba 512GB M2 SSD
  • Samsung 860 EVO 1TB SSD
  • 15.6″ 4K HDR screen
  • Windows 10 x64 Enterprise Insider Preview Version 20H1 Build 18865 + Ubuntu 18.04 LTS.

I have tried numerous solutions, including updating the BIOS (multiple times, currently on version 1.9.0), updating drivers and software, following guides for the CPU (including undervolting the CPU and cache, and reducing Turbo boost speeds), removing Intel DPTF, disabling Turbo Boost, and contacting Dell Support (which was not helpful). I have also installed Dell Power Manager and set the cooling to Ultra-Performance.

Despite these efforts, the problem persists. My only remaining option may be to wait for the release of 9th Gen Intel CPUs and see if I can exchange the laptop under warranty. I have not extensively tested the issue under Linux, but do not recall experiencing this problem in that operating system. This seems to be specific to Windows.

Askify Moderator Edited question April 19, 2023