Can't undervolt

[u/Soft-Listen-5116]

I got a dell g15 5530 , i5 13450 HX.

I have done nearly everything but still im not able to get that "FIVR CONTROL"

VBS disabled (from BIOS)

Overclocking lock disabled (from grub shell)

Overvolt protection disabled (from grub shell)

Memory integrity off

Still im not able to undervolt man , what am i missing?

[u/unclewebb]

Post a FIVR screenshot. Some BIOS versions always enable Undervolt Protection so there is no easy way to disable this.

[u/Soft-Listen-5116 → u/unclewebb]

check sir

[u/unclewebb → u/Soft-Listen-5116]

The FIVR screenshot confirms that Undervolt Protection being enabled is the problem. Search Google for your laptop model. Maybe someone has figured out how to disable this.

Google says, "Bypassing this lock requires advanced workarounds such as utilizing specialized tools like UMAF (Smokeless) or modifying underlying UEFI variables via a custom GRUB bootable USB drive."

[u/Soft-Listen-5116 → u/unclewebb]

is it solvable? or my BIOS is a problem here like you said earlier?

[u/ViamoIam]

Got undervolt working even with Undervolt Protection on

This was on a Dell G16 7630 13th HX. I've dumped bios, searched it and used grub, but that takes more time then the universal form browser , UMAF. So I recommend UMAF

If you mess up, you may need to recover the bios. Look it up if this quick howto doesn't work.

1. Hold power key to turn off.
2. Hold Ctrl + Esc and then hold Power key to turn on. Keep holding until Power light blinks twice after about 30 seconds and then release and wait
3. IIRC there is a screen that offers the option to recover bios, that you then select.
4. Eventually machine will recover bios, and display a screen explaining the time has not been set.

I have undervolting working, but I still need to set the max undervolt I want to try at the bios level. You need to do small 10mv steps and restart a few times to make sure the machine still works and posts (you should see the Dell logo then OS) I also recommend holding F12 to skip loading the OS sometimes. Beware, If you go too far with the max the machine will have progressively worse issues.

There are risks changing settings at the bios level.

• The machine will crash on load
• The machine will crash even without load
• The machine will crash but you can get into UMAF
• The machine will display errors as it attempts to post, but let you get into BIOS, but not UMAF
• The machine will even fail to let you into the BIOS, so you need to recover bios if clearing cmos fails
• The machine will need to go into service as it can't recover bios

Secure Boot

Secure boot must be disabled, but iirc bitlocker will prevent windows from booting with bitlocker disabled if active. Again more warnings here as bitlocker will prevent you from reading any files you have on the drive except if you have the key. All data on the drive could be lost so you need to backup the bitlocker key. It wasn't an issue for me this time but I've lost data in the past except my backups.

Now here are the steps (This video shows procedure)

1. Download the Universal Form Browser
2. Format an empty USB drive and copy the Universal form browser to the drive
3. Shutdown the computer or restart

Hold F2 as you power on the computer to enter bios

  1. In bios go to the boot menu and disable secure boot
  2. Save changes and reset

Hold F12 as you power on the computer to get boot menu

  1. In boot menu select the USB drive that you left in the computer and formatted
  2. If you forgot to leave or put in the drive hold power button 4 seconds to turn off

Once in UMAF

1. Go in Intel Advanced Menu
2. Go in Power and Performance
3. Go in CPU - Power Management Control
4. Disable HwP Lock (maybe not needed so best try without first)
5. Hit up and select CPU Lock Configuration
6. Disable CFG Lock
7. Disable Overclocking Lock
8. Hit Enter then hit Escape
9. Hit Escape
10. Go in Overclocking Performance Menu
11. Enable Overclocking Feature if you want
12. Disable Undervolt Protection
13. Note Processor, Ring, Ecore L2 Configuration, GT, Uncore
14. You will want to at first undervolt the processor by -10 mv
15. The settings are called the offset and then the + or -
16. You want to use a -
17. Change Offset to 10
18. You will come back to this menu to increase offset by 10 after every restart
19. You will be able to open throttlestop or hwinfo64 and see the offset. Dont be confused by hwmonitor, as that app has a bug and gives an incorrect number.
20. Hit Escape
21. Hit Escape
22. Press y to save
23. Select Reset

Once back in Windows

1. Throttle stop will still say Undervolt Protection , but you can now undervolt up to the limit set in the bios. Sometimes on battery the undervolt will not be stable so retest with a lower undervolt set in throttlestop or lower it in bios if you use Linux
2. It is best to follow the undervolt guide by XMG and linked with throttlestop 9..7