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Throttle stop Greyed Out

NotNot

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Jan 20, 2024
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Hi, i own a
System Model: HP EliteBook 840 G6,

I wanted to undervolt my laptop but it seems to be greyed out (locked)
Keep in mind im on win 10, ive already disabled VBS (bios, redist, policy),
it also didnt fix the problem.
Id appreciate some help, thank you.
 
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That's very, very vague... can you be more specific? Fill out your profile's system specs with processor, RAM, etc. - type in "dxdiag" in your start menu if you don't know what any of that is.

I've heard undervolting was locked out on some earlier generation Intel chips due to a vulnerability, might be affecting you.
 

NotNot

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That's very, very vague... can you be more specific? Fill out your profile's system specs with processor, RAM, etc. - type in "dxdiag" in your start menu if you don't know what any of that is.

I've heard undervolting was locked out on some earlier generation Intel chips due to a vulnerability, might be affecting you.
hopefully this hasnt been locked out, here are the specs you asked for
System Information
------------------
Time of this report: 1/20/2024, 15:16:17
Machine name: DESKTOP-MSO6GG8
Machine Id: {}
Operating System: Windows 10 Pro 64-bit (10.0, Build 19045) (19041.vb_release.191206-1406)
Language: English (Regional Setting: English)
System Manufacturer: HP
System Model: HP EliteBook 840 G6
BIOS: R70 Ver. 01.26.00 (type: UEFI)
Processor: Intel(R) Core(TM) i7-8565U CPU @ 1.80GHz (8 CPUs), ~2.0GHz
Memory: 16384MB RAM
Available OS Memory: 15710MB RAM
Page File: 4529MB used, 14124MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 12
DX Setup Parameters: Not found
User DPI Setting: 96 DPI (100 percent)
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
Miracast: Available, with HDCP
Microsoft Graphics Hybrid: Not Supported
DirectX Database Version: 1.0.8
DxDiag Version: 10.00.19041.2075 64bit Unicode
 

unclewebb

ThrottleStop & RealTemp Author
Joined
Jun 1, 2008
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If the ThrottleStop FIVR window shows Locked, the BIOS has locked out CPU voltage control. Post a FIVR screenshot.
 

NotNot

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If the ThrottleStop FIVR window shows Locked, the BIOS has locked out CPU voltage control. Post a FIVR screenshot.
im not sure how my bios has locked it; vbs is already disabled.
 

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unclewebb

ThrottleStop & RealTemp Author
Joined
Jun 1, 2008
Messages
8,056 (1.33/day)
1705766246887.png


ThrottleStop clearly shows Locked. That means the BIOS has locked out CPU voltage control. If this was originally not locked then there was likely a BIOS update that has locked this. Most laptops with 8565U processors were originally locked.

Your VBS settings are fine. That has nothing to do with the BIOS setting the lock bit on the voltage control register.
 

NotNot

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View attachment 330585

ThrottleStop clearly shows Locked. That means the BIOS has locked out CPU voltage control. If this was originally not locked then there was likely a BIOS update that has locked this. Most laptops with 8565U processors were originally locked.

Your VBS settings are fine. That has nothing to do with the BIOS setting the lock bit on the voltage control register.
is there a solution to this then?
 

unclewebb

ThrottleStop & RealTemp Author
Joined
Jun 1, 2008
Messages
8,056 (1.33/day)
is there a solution
Search Google to see if anyone else has found a way to unlock voltage control. On Dell computers you can modify a couple of UEFI variables to unlock this.


I am not sure if something similar is possible on HP laptops. There might be an early BIOS version available that has this unlocked. Trying to install an early BIOS can be risky.

There is nothing ThrottleStop can do until you find a way to unlock this setting.
 
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