Surface pro 4 - clock speed of CPU keeps the same

Anonymous

After updating to windows 10 (1607), I find that the clock speed of the CPU keeps to be 2.92GHz when plugged, and to be 2.47GHz when using battery. My surface pro 4 has a core i5 CPU. It seems strange because the clock speed of CPU should change with the workload in the Task Manager. Does anyone have the same problem?

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

0 comments

Answer accepted by question author

Anonymous

Fixed with today's update. Thanks, MS!

NOTE: I had to reboot twice after updating. So if anyone is not seeing the fix try a restart.

0 comments

92 additional answers

Anonymous

2016-08-05T20:56:12+00:00

Same issue with my surface pro 4, hope it get fixed soon :/
Was this answer helpful?

0 comments No comments
Anonymous

2016-08-05T23:23:58+00:00

Hi, all

I have solved the issue by recover my SP4 using official recovery USB media, listed here: https://www.microsoft.com/surface/en-ca/support/storage-files-and-folders/create-a-recovery-drive?os=windows-10&=undefined.

Then I updated to the anniversary update of Windows 10. Then the CPU works fine now.

The method is mentioned in the link: https://www.reddit.com/r/Surface/comments/4w0bke/cpuclockspeed\_doesnt\_change\_anniversary\_update/
Was this answer helpful?

0 comments No comments
Anonymous

2016-08-05T23:29:43+00:00

I just re-installed the update using the 1607 ISO keeping my apps and files. Now its working fine.

Additionally, before reinstalling, "powercfg /energy" wouldn't generate a report. Now it does. Seems something was screwed up in the power settings.
Was this answer helpful?

0 comments No comments
Anonymous

2016-08-06T01:41:44+00:00

I re-installed the 14393 update via media creation tool last night with keep every thing , now the cpu clock seems fine
Was this answer helpful?

0 comments No comments