cpu thermal throttling on ~70 C

[8245825234]

hi all. i got cpu thermal throttling on my notebook. on stress test(cpu loaded 100% by several "*.bat"s )when cpu temp.reaches 70-71 C, frequency going down, temperature going down too, then on ~57 C. cpu freq.switches to max, temperature begins growing to 70-71C, then all repeats. by visual and sound senses, fan is rotating faster, but not enough to cool down this cpu.

video: https://drive.google.com/file/d/1_7QSwIbGrzNu8AcCKvSe7KciPHE5Ygfy/view?usp=sharing

please help by advice. thx.

p.s. following advices of virtual HP consultant,trying bios update, cleaning radiator/fan(by disassembling all notebook by parts) made no results. 

temp in idle(5-15% cpu load) is about 50 C.

using hp support assistant for windows, passed cpu&video full and fast stress tests(included in hp support assistant) with no problems found.

notebook warranty is out. [edit]

[sandytechy20]

@8245825234

Welcome to HP support community.

Adjust the power settings to decrease power consumption, which can help the fans maintain an optimal internal temperature up to 30° C (86° F).

1. Turn on the computer.

2. In Windows, search for and open Control panel.

3. In the Control Panel search field, type power options, and then select Power Options from the list.

   

4. Click Change plan settings.

   

5. Click Change advanced power settings.

   

6. Click the drop-down menu, and then select Power saver.

   

7. Select Sleep from the list, and then click Sleep after and Hibernate after to open each setting.

   NOTE: 

   Sleep mode places the computer in a power-saving mode that does not close any open applications, while Hibernation mode saves any work in open applications, and then turns the computer off.

   

8. Decrease the amount of time for each setting to reduce unnecessary strain on the fans when the computer is not being used.

9. Click OK to save the changes.

10. Restart the computer.

You can refer this HP document for more assistance:-Click here

I hope that helps.

To thank me for my efforts to help you, please mark my post as an accepted solution so that it benefits several others.

Cheers.