My HP Z420 is only Turbo boosting to 3.08 GHz when it can turbo boost to 3.50 GHz max.

myaccount1234

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Sep 12, 2015
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Xeon E5-2680 v1 liquid cooled, with HP branded liquid cooled CPU cooler, that was an upgrade option for the HP Z420. 600W Gold power supply.
This is my Bios settings photo. https://unsee.cc/bc40e067/
Windows 10 is in Ultimate Performance in power settings, because I enabled it with CMD. I did see the CPU turbo boost go to 3.32 GHz, and this was before I enabled Ultimate Performance mode. My CINEBENCH score has been lower because it is not boosting has high, and only to 3.08 GHz. I think there is a glitch in the bios because I enabled virtualization in the bios and soon after I did that it won't boost above 3.08 GHz. I noticed this so I turned it off. I used to have the mode runtime power management off and turbo mode on, but after I turn virtualization on for the first time, each time after that, when I turn power management off, turbo mode on, it turns itself off. When I reset the Bios and try the settings again before the virtualization mode was on for the first time the turbo mode keeps turning itself off, and I need power management on and turbo mode on, to keep turbo over 2.70 GHz, the base speed GHz. I even pulled the plug and used the reset CMOS button twice with no fix before I used virtualization mode on for the first time. I think the setting bugged my Bios for good, even with it off and with a reset bios. I know it is not the Ultimate Performance mode because I just enabled it for the first time while writing this to see if it will help, but it did not, so I need help from someone.
 

myaccount1234

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Sep 12, 2015
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Update, I restarted the computer after writing this and I think the Ultimate Performance mode actually worked because when I used the Intel Extreme Tuning Utility benchmark the max CPU GHz reached 3.44 GHz, this is faster then I got before. The CPU is reached 6 below max CPU Turbo boost speed of 3.50 GHz. I want to know why Ultimate Performance mode fixed the issue with turbo boost and why the bios still cause problems. Ultimate Performance mode was made only for Windows 10 PRO for Workstations, but I have Windows 10 Education, so was able to enable it with a CMD command.
 

SMARTZ921

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Jul 29, 2016
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Keep in mind that laptop thermals will impact performance. When you're using the CPU it will thermal throttle, meaning that the hotter it gets the more it will slow. Just keep that in mind.
 

myaccount1234

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It is a desktop that is liquid cooled, so I don't think it will thermal throttle.
 

myaccount1234

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Sep 12, 2015
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MERGED QUESTION
Question from myaccount1234 : "My HP Z420 is only Turbo boosting to 3.08 GHz only. 3.50 GHZ is max turbo Help me."

Xeon E5-2680 v1 liquid cooled, with HP branded liquid cooled CPU cooler, that was an upgrade option for the HP Z420. 600W Gold power supply.
Max fan speed too, remove temp problems.
The CPU is not boosting over 3.08 GHz, after fresh installed Windows 10 when I bought a Samsung 860 PRO SATA. Before the SSD came I installed Windows 10 Education(only key I owned) on a Brand new WD Black HDD 1 TB, that I bought to use as a DATA drive, before I bought an SSD as a boot drive, because I already owned the new HDD and needed to use the HP Z420 for work. I wiped the DATA HDD after I fresh installed Windows 10 on the SSD. The problem is, with the limited time on the HDD I enabled Ultimate Performance in power settings because I enabled it with CMD. I was getting over 3.08 GHz with a max of 3.44 GHz, close to the max of 3.50 GHz. Now after I fresh installed Windows 10 on the new SSD I can not get over 3.08 GHz with turbo boost and this is affecting my work projects and games performance too. I pushed the CMOS button and restored the bios settings and changed the HDD settings to AHCI to run Windows on the SSD. I do need help on why is this happening?
 

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MERGED QUESTION
Question from myaccount1234 : "My HP Z420 is only Turbo boosting to 3.08 GHz only and to max of 3.50 GHz. Help."