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‎03-09-2025 06:36 AM - edited ‎03-09-2025 06:38 AM

HP Recommended
Product: ZBook Studio 16 G9

Hi,

Usually my laptop is fairly quiet when idle but over the last few weeks the fans have been racing and making noise.  The CPU is way down ~7% but the fans are still whizzing.

  • CPU temp ~ 45 C
  • nVidia GPU temp 40 C (it's idle because the Intel Iris Xe GPU is the primary graphics).
  • PCH temp is 40 C.
  • Battery temp is 28 C

There was a BIOS update recently, to 1.14.0.  The release notes didn't say anything about temp control or fans.

Intel graphics and nVidia drivers are latest - there were updates for both of these this last week.

 

  • Task Manager has "System" as the highest when sorted by CPU - no significant background tasks running.
  • Power Plan is "Balanced"
  • Windows 11 24H2, all updates - including all the HP driver ones (HP Inc. - Software Component, etc).
  • HP Support Assistant reports no updates needed.
  • I've cleaned the vents - didn't find any fluff or debris.
  • Have done full malware scan - no issues found.
  • Have done full UEFI hardware diagnostics - no issues.

 

Not sure what to do.  Guess I could check inside for any fluff, and maybe change the thermal paste.  But this behaviour seems to have come on suddenly.

 

Has anybody else experienced similar, recently?

 

Thanks,

Z

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