Intel® Core™ Ultra 9 Processor 275HX keeps overclocking

[RvL_Asd]

Hi all,

Got a laptop with the Intel® Core™ Ultra 9 Processor 275HX. Win 11, RTX5090, 192GB.

Need some help here.

When the laptop is on power supply (so not working on the battery) the CPU keeps running above 2.7GHz. It overclocks above 3GHz all the time and runs even in the 4GHz when it is idle...the GPU is switched off. The temperature joins up to 70-85 degrees Celcius, which I guess makes sense with the overclocking. The fan also joins the party by 50-60%.

When the laptop is off the power cable and the battery is used, the CPU goes directly to 300-800 MHz which I would expect when idle. From there it hangs around 1.5 GHz. As result temperature drops to around 40-45 and fan 35-40%. Also expected.

BIOS, Intel Software, Control Center and Windows 11 don't have the option to stop the overclocking. Even in Power Control in Windows where you can parameter the usage of the CPU (0-100%) is totally ignored by the CPU. Control Center has the option Performance, Entertainment and Quiet mode. On all three opties and when on power cable the CPU doesn't go to default 2.7 GHz setting either.

The answer from the store where I bought the laptop stated 'Oh, it is a powerful chip, it just wants to perform'. Uh-uh.

Anyone an idea how this overclocking is happening? Better yet, how to stop the CPU for doing so until instructed (e.g. in Turbo modus, if there is any).

Let me know if more information is needed.

Cheers,

Robert

[pressed_for_time]

You should contact the support department of the manufacturer of your laptop to verify whether this is or is not expected behaviour. And if the system is working as designed whether there is anything they can do to address the issue you are seeing.

[RvL_Asd]

@pressed_for_time thank you for your reply. Indeed I did contact them, hence the answer they provided placed in my post. Unfortunately, no solution came out of it and therefor I try the community.

@all members of this community, side note: interesting enough the emailaddress I use just for this community has been used to log in for a Microsoft Account. This was done only a couple of hours after I posted my message. Make sure you have 2FA activated for your Microsoft Account.

[Brokeyboy]

that is just turbo boost man nothing to worry about