power throttling while plugged in

[Oliveirah]

My notebook has extremely aggressive power throttling. When I connect it to the power outlet and run heavy processes like games, the TDP sometimes exceeds 20W, and the temperature reaches around 70 degrees. At this point, it abruptly cuts the power down to 6W, causing significant stuttering. However, if I use the notebook under the same conditions on battery power, the TDP remains consistently above 20W without any power throttling. Although it gets reasonably hot, the performance remains stable and consistent.

As a workaround, I had to resort to third-party software to keep the TDP at very low levels, but this severely limits the notebook's performance. The BIOS version installed is AMI F36. I’ve tested various software solutions to try to increase the limits so that throttling occurs at higher temperatures, but none have been effective.

[Max3Aj]

Hi @Oliveirah, Welcome to HP Support Community. 

Thank you for posting your query, I will be glad to help you. 
It sounds like your HP 14-f1000 laptop is experiencing severe power throttling when plugged in, which is unusual because most laptops throttle more aggressively on battery power rather than on AC power. Based on your description, here are a few things to check and try:

Check Windows and HP Power Plans

• Go to Control Panel > Power Options and check the active power plan.
• If using HP Recommended, switch to High Performance or Ultimate Performance (if available).
• In Advanced Power Settings, under Processor Power Management, set:
  • Minimum Processor State to 100%
  • Maximum Processor State to 100% (on both battery and plugged in)

Check for HP BIOS and Firmware Updates

• Visit the HP Support Website and enter your laptop’s serial number.
• Look for BIOS/Firmware updates, especially those related to power management.

Disable BD PROCHOT (Test Carefully)

• BD PROCHOT (Bi-directional Processor Hot) is a protection mechanism that throttles the CPU when temperatures exceed a certain limit.
• You can test disabling BD PROCHOT using ThrottleStop (carefully, as it might cause overheating).
• Download ThrottleStop, uncheck BD PROCHOT, and monitor performance.

Check Power Adapter Wattage

• If you are using a lower-wattage charger than the one specified (e.g., 45W instead of 65W), the system might be limiting power delivery.
• Use the original HP adapter or check if a higher-wattage adapter helps.

Adjust BIOS Power Settings (If Available)

• Restart and enter BIOS (F10 on boot).
• Check Advanced or Power Management Settings for any Power Limiting or CPU Throttling options.
• If Intel Speed Shift or C-States options are present, try adjusting them.

Test Performance in Safe Mode / Clean Boot

• Boot into Safe Mode with Networking and check if power throttling still happens.
• If performance is stable, it could be an issue with third-party software or drivers.

I hope this helps. 

Take care and have a good day. 

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Max3Aj

HP Support