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codexassemble
Beginner
117 Views

Skylake Processor ASPM BUG?

Hi,

I was  wondering   if there is  a fix to the Skylake power management on windows 10 x64 build 2004. Processor datasheet shows C1-C10 Cstate capabilities on technical documentation(pg 60 "Intel 6th-gen-core-family-mobile-u-y-processor-lines-datasheet-vol-1"). Monitoring  available C states via throttle stop app shows entering a max C7 idle state. Checking with powercfg -energy shows that APSM for PCI express power management is disabled due to bug ,  which i may suspect it prevents C10 State. Please advise on how to achieve C8-C10 idle state on processor.

Things done

set APSM via Control Panel->Power Options->PCI Express Power Management -> Max power savings +Disable USB Wake timers

Installed latest chipset ,intel igpu/dgpu drivers , 

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3 Replies
David_G_Intel
Moderator
87 Views

Hello codexassemble

  

Thank you for posting on the Intel communities. 

 

You can modify C-States through the BIOS and Window/Power Management settings, but you need to check with the OEM which are the best values for your system. Changing/modifying C state values can make your CPU throttle its power usage when idle. 

Intel® cannot advise how to change those settings. Different factors need to take into account; customizations, limitations, cooling system, and others. We can provide information for the c states, available in the datasheet, but you will need to check with the OEM which is the best configuration.

 

Regards, 

David G 

Intel Customer Support Technician 


David_G_Intel
Moderator
72 Views

Hello codexassemble

  

Were you able to check the previous post?  

Let us know if you still need assistance.   

 

Regards, 

David G 

Intel Customer Support Technician 


David_G_Intel
Moderator
55 Views

Hello codexassemble

  

We have not heard back from you, so we will close this thread. If you need any additional information, please submit a new question as this thread will no longer be monitored. 

  

Best regards,  

David G. 

Intel Customer Support Technician  


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