need help with 12900hx

[shira]

this is the first time im using throttlestop, and my 12900hx is often throttling, and the adjustable voltage are locked how can i unlock it

 

[unclewebb]

how can i unlock it

Search Google for a BIOS version that does not lock the voltage control register. ThrottleStop cannot do anything when a CPU is locked by the BIOS. What laptop model do you have?

 

[shira]

Search Google for a BIOS version that does not lock the voltage control register. ThrottleStop cannot do anything when a CPU is locked by the BIOS. What laptop model do you have?

im using msi vector gp68

 

[unclewebb]

MSI Vector

I have a MSI Vector 17. To access the Advanced BIOS settings I need to first enter the BIOS and then I need to hold down four keys on the keyboard. Undervolting can be unlocked when in the Advanced BIOS. The four keys on my keyboard that I need to hold down are,

Right Shift key
Windows Copilot key
ALT key
Function F2 key

If your laptop does not have a Windows Copilot key then try using this key combo,

https://www.reddit.com/r/MSILaptops/comments/boe9uu
In the BIOS go to,

Power & Performance
CPU - Power Management Control
CPU Lock Configuration

and disable both of these

CFG Lock
Overclocking Lock

That should allow you to undervolt and change the Turbo Group ratios in the ThrottleStop FIVR window.

 

[shira]

Thank god i ask you first before following tutorial to unlock in yt, its unlocked now thank you
And what's setting should i apply in fivr?

 

[unclewebb]

what's setting should i apply in fivr?

Use ThrottleStop 9.7.3

I have never owned a 12900HX so I do not know what settings would work best. I would set V/F Point 1 to 150 for the core and the cache. This setting is important for stability. Here is an example from an older CPU. Your CPU should have values for all 11 V/F Points.

After you do this, try setting the Core and the P Cache offset in the FIVR window to -100 mV. If that is stable try -125 mV, etc. Every CPU is unique. My 14900HX is happy and stable at -150 mV.

I like to set IccMax to the max, 511.75, for the CPU Core, P Cache, Intel GPU and iGPU Unslice. I also set Power Limit 4 to the max, 1023.

Run Cinebench and see if your computer is stable. If Cinebench crashes, you need more voltage. If any games crash, you need more voltage. Take your time. It might take a few days to come up with some good settings that are 100% stable.

I prefer disabling C1E and I like to use the Windows High Performance power plan. Keeping a CPU stable at max MHz makes it easier to come up with a large undervolt. Most people seem scared to do this but it is not a bad way to run an Intel CPU. High MHz helps keep the latency to a minimum when gaming.

Edit - If you have trouble with instant crashes when trying to undervolt the P Cache, try lowering the Cache Ratio Max value significantly. This has been a problem for some 12th Gen HX CPUs. Go as low as the base frequency which I think is 2.2 GHz for the P cores.

 

[shira]

Thank you uncle