Processor performance limited to 0.78GHz with 34% usage when connected directly.
Processor performance limited to 0.78GHz with 34% usage when connected directly.
HP laptops sometimes encounter issues with three different turbo power settings. These include the MSR and MMIO limits accessible by ThrottleStop, as well as the EC power limits handled by a built-in controller. ThrottleStop cannot adjust the EC limits directly. When did this issue begin? Was it before or after you opened your laptop to clean the fans? Static electricity during cleaning can harm internal parts. Are you using an original HP OEM power adapter? If your laptop fails to recognize the adapter, it may enter a low-power state. The system won’t know the adapter’s strength, so it lowers CPU power to preserve battery life. This can cause the EC limits to drop. Unplugging the adapter removes the restriction and lets the laptop operate normally. Using an original adapter with an HP battery might trigger a faulty sensor, sending incorrect signals to the power controller. No ThrottleStop version can resolve EC throttling problems.
The issue began after a Windows update. I previously restored to a stable Windows version. It could be related to the power brick or a defective sensor. Throughout the device’s life, I’ve changed the battery three times every two years from this supplier: https://www.batt-depot.com/products/batt...ies-sr04xl. The only power brick replacement was once, after it failed immediately upon dropping from a desk and ceasing to charge my laptop. I purchased a matching power brick from a laptop manufacturer that sold HP laptops. When opening my laptop, I wear an anti-static wrist band and have cleaned the fans periodically to rule out thermal throttling, as it’s been several months since the last cleaning.