topic Re: CPU Speed in Mobile and Desktop Processors

CPU Speed

JJohn50 — Thu, 16 Jun 2016 11:09:52 GMT

i7-6700K will not run faster than 800 MHz. Could be CPU; could be ASUS Z170 PRO Gaming MB. How do I find the problem?

Re: CPU Speed

n_scott_pearson — Fri, 17 Jun 2016 21:43:45 GMT

I would check your BIOS' configuration for the processor; it is the likely culprit...

Re: CPU Speed

idata — Sat, 18 Jun 2016 14:35:28 GMT

The processor is rarely the problem. Running at 800MHz is the normal speed when the CPU power saving options are enabled (Speed Step, C1E, and other C States), when the CPU is idle, low load situation.

Did you try clearing the BIOS/UEFI? You could also try loading the BIOS/UEFI default settings, you should have an option in the UEFI to do that.

What are you using to monitor the CPU's speed? Do you see this CPU speed in the OS? What is the CPU's speed when you are in the UEFI/BIOS UI?

If your CPU cooler is not mounted correctly, the CPU may be thermal throttling itself. Are you monitoring the CPU temperature?

Some boards have options in the UEFI/BIOS to limit the CPU's speed, and also may have a physical switch on the board itself that limits the CPU's speed. Few boards have the physical switch to limit the CPU's speed, but that is worth checking.

Re: CPU Speed

idata — Mon, 20 Jun 2016 14:53:23 GMT

Hello, All:

Thank you for all your feedback.

JohnME, please try the suggestions mentioned above and let us know if they helped you.

Regards,

Amy.

Re: CPU Speed

idata — Fri, 29 Jul 2016 12:43:40 GMT

Hello, JohnME:

Did the suggestions above work? Were you able to resolve this?

Let me know your findings.

Regards,

Amy.