8700k turbo boost doesn't hit 4.7ghz on 1 core

[RNL]

Hi all,

I have a 8700k with a Asus Rog Strix-F gaming motherboard. I own it since 2 weeks, I use HWmonitor to keep an eye on heat. Because I've heard these chips get hot, and it's also the first time I did my own build. But in HWmonitor and CPU-z it never shows that it hits 4.7Ghz on 1 core. It does hit 4.3Ghz on all cores.

Last night I changed a few settings in the Bios after reading about some others who had this issue. My Bios had C-states somehow disabled, so I turned those on and also enabled Speed Step. Now all my cores hit 4.5ghz while idle and during gaming it hits 4.4ghz. I have no idea why it doesn't hit the 4.7Ghz on 1 core as advertised. (I closed applications so that only HWmonitor and CPU-z where on)

I tried Prime95 using small FFTs for 1 core, to no avail. I have my BIOS updated. I have no clue what is causing this.

Hopefully someone can help me out with this issue.

Regards,

Reydan

[idata]

Hi Reydan,

I understand you are trying to get the maximum turbo frequency of the processor. Let me try to help on this matter.I would like to confirm if the processor frequency works as expected. There are two utilities you can run to get this information:Intel® Processor Identification Utility - Windows* Versionhttps://downloadcenter.intel.com/download/7838/Intel-Processor-Identification-Utility-Windows-Version https://downloadcenter.intel.com/download/7838/Intel-Processor-Identification-Utility-Windows-Version Intel® Processor Diagnostic Toolhttps://downloadcenter.intel.com/download/19792/Intel-Processor-Diagnostic-Tool https://downloadcenter.intel.com/download/19792/Intel-Processor-Diagnostic-ToolPlease run tools above and provide results. Regards, Allan J.

[RNL]

Hi Allen,

I forgot to update my post this weekend, because I found a way to fix it.

When I made my new PC build, I went in BIOS settings to enable XMP. On Asus boards if you enable XMP, you will get a warning with a yes or no to enable multicore enhancement. First time I enabled this feature, this changed alot of BIOS options.

So I resetted the BIOS, enabled XMP and this time simply clicked no. This fixed it, now I've seen 1 core hitting 4.7Ghz.