Intel Extreme Tuning Utility Undervolt Fails after Bios update ?

Question

Hi, I have a XPS 15 9570 i9

When i bought it i installed Intel Extreme Tuning Utility and under-volted by .130 (From Reading Reviews etc etc)
It made a big difference and everything was good

In the last day or so i updated stuff from Dell prompts, BIOS 1.6 Being one of them . . (Its the only thing i can think of)

Now when i open the tuning utility voltage has defaulted back to normal and is greyed out from being changed ?
I have removed reinstalled/updated . . .all to no avail, still greyed out and cannot change ?

Has this happened to anyone else ? any thoughts please ?

Vaaldemar · Accepted Answer

I managed to get the undervolt option back when I did a "reset to default" in the BIOS.

I did this after I reverted back to 1.5 but I'm not sure It had to be done in that version.

After I updated to 1.6 again the undervolt option was enabled in Intel extreme tuning utility.

PattayaPip · Answer

You are a star, thankyou @Vaaldemar for this

omdreamer · Answer

having same issue, could you please outline how to roll back and then upgrade BIOS? I tried 'reset to default' and it just rverted settings, not version...

PattayaPip · Answer

But, Have you tried running your undervolt program again ? It was a Dell thing not just Bios

AllFineNicknamesTaken · Answer

Hi, I use another utility now which is working on my XPS 9560 with the last BIOS 1.19.2 https://www.techpowerup.com/download/techpowerup-throttlestop/

PattayaPip · Answer

Yes me too, it is a good program, use it for CPU and GPU

afrishman · Answer

@Vaaldemar Fantastic! Thank you so much!

rol3ks · Answer

What Vaaldemar suggested works. Downgrade to pervious bios. Once completed, enter the bios and default it. Log in to Windows, start XTU and 'Core Voltage Offset' will be available again.

Jacob Arlington · Answer

You can have UnderVolt on all bios versions!!!

1. Go to Bios reset bios to default
2. Uncheck UEFI firmware capsule updates in your current bios under the security section
3. Download and run this as an administrator ( https://github.com/Brad331/NoDPTF )
4. Download your system bios that were released before December 2019
5. Downgrade bios to the old version
6. Reboot the system before windows boot Repeat steps (1 & 2)
7. After Windows boot update your bios to the latest version and it will work with whatever version is your bios now
8. This is the proof https://i.imgur.com/InzQ4qI.png

XPS

Intel Extreme Tuning Utility Undervolt Fails after Bios update ?

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