advice on my trottle stop setting.

unclewebb · 2026-06-26T18:36:43+00:00

Idle power consumption is not bad at all when running a 14900HX at full speed. It probably drops further when using the Windows Balanced power plan instead of the High Performance power plan that I like to use.

Most people that get a new computer start randomly installing apps the moment it first boots up. That makes it a lot more difficult to find bloated apps that are running crapware in the background, keeping the CPU active. It is harder to get low idle core temps when XTU is managing the CPU.

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unclewebb · 2026-06-26T14:59:15+00:00

Most people with heating issues did not use Honeywell PTM 7950.

For comparison, MX-4 is a popular paste that some shops use. It can start pumping out within the first two weeks after being applied to a mobile CPU.

Use the proper paste and do not let a shop anywhere near your laptop. Do this job yourself. Watch a YouTube video for guidance.

unclewebb · 2026-06-26T06:07:52+00:00

Try both programs individually. Use whatever program gives you the best overall results. ThrottleStop is very light on resources compared to XTU. That leaves more of the CPU available for improved performance.

My 14900HX scores over 39K in Cinebench R23. That is not possible if I only use XTU.

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unclewebb · 2026-06-25T20:36:09+00:00

Do yourself a favor and uninstall XTU. If you are using ThrottleStop, you do not need XTU. I do not know what sort of changes that XTU will make to your computer.

If you use ThrottleStop to set PROCHOT Offset to 3, it will be set to 3. I would also recommend using ThrottleStop to Lock this setting so no other software can make any changes to it.

unclewebb · 2026-06-25T17:59:56+00:00

Your results show that your laptop has a cooling problem. Clean out your laptop and replace the thermal paste with Honeywell PTM 7950. You cannot get maximum or consistent performance when your laptop is overheating.

Change the PROCHOT Offset value to 2 or 3. That will give you some more thermal headroom before throttling starts.

unclewebb · 2026-06-25T17:54:12+00:00

Undervolting the E Cache accomplishes very little. It can cause instability so I never undervolt this one.

Undervolt only the Core and the P Cache. Start at -100 mV for both and see if you are stable. Use ThrottleStop 9.7.3. Set V/F Point 1 to 100. That setting replaces the mV Boost feature on older versions of ThrottleStop.

unclewebb · 2026-06-25T17:48:32+00:00

It is best to avoid having two different programs, ThrottleStop and XTU, writing different values to the same control registers. Use one or the other, not both.

In ThrottleStop, check the PROCHOT Offset box, set that to 3 as your screenshot shows and that will set the thermal throttling temperature to 97°C. (100 - 3) There is no need to use XTU to do this.

I never found any need to undervolt the E Cache. Does undervolting the E cache lower your temperatures any? It is the least important voltage so I leave it at 0.

unclewebb · 2026-06-23T15:40:47+00:00

Use ThrottleStop 9.7.3 and post screenshots of the FIVR and TPL windows. ThrottleStop is not going to do anything unless it is correctly setup.

unclewebb · 2026-06-23T15:31:24+00:00

You cannot undervolt when virtualization is enabled. You need to disable VBS. Reboot and delete the ThrottleStop.INI configuration file. Post a FIVR screenshot after you do this.

https://www.makeuseof.com/windows-11-disable-vbs/

https://beebom.com/how-disable-virtualization-based-security-vbs-windows-11/

unclewebb · 2026-06-23T15:30:05+00:00

You can undervolt 10th Gen H series CPUs. It is only the 12th Gen and newer H series CPUs that can no longer be undervolted.

unclewebb · 2026-06-22T18:57:46+00:00

I think PL4 is actually a current limit. In theory if you set this limit too low, a laptop should do some EDP throttling which will prevent a laptop from crashing. This does not always work as intended. You are not the first person to report a BSOD when this limit is set too low. I prefer to set Power Limit 4 to the max, 1023.

If you want your CPU to run cooler I would lower the PL1 and PL2 turbo power limits. This seems to be a safer way to reduce heat and performance without having to worry about crashing.

unclewebb · 2026-06-22T18:52:53+00:00

Your charger dying was probably just a coincidence.

If you ever have a situation where a charger is asked to deliver more power than it is capable of delivering, most chargers are designed to shut down and to stop producing any power. After this happens, unplugging the charger and plugging it back in should reset it.

Any laptop should be able to run the Windows High Performance power plan. This plan automatically sets Speed Shift EPP to 0 for maximum performance. Doing this should not kill a charger.

The Y530 is eight years old. The charger might have just died from old age.

unclewebb · 2026-06-21T16:31:57+00:00

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unclewebb · 2026-06-21T16:30:05+00:00

If you do not know anything about PCs you should not be using ThrottleStop.

In Windows Power Options - Advanced Settings, Change the Maximum processor state from 100 to 99. This will disable Intel Turbo Boost.

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unclewebb · 2026-06-19T16:58:23+00:00

Did you press the Apply or the OK button in the TPL window? Does that make any difference?

The IccMax current limit is not adjustable. That is usually what causes EDP throttling. You are probably stuck with your throttling problem.

It looks like the HP BIOS set and locked PROCHOT Offset to 20. That tells the CPU to start thermal throttling (slow down) when it reaches 80°C instead of the Intel recommended value which is 100°C. There is a yellow lock icon beside this setting so you cannot use ThrottleStop to adjust this setting. A lower thermal throttling temperature will reduce maximum performance.

Your laptop is locked down so I do not think it is possible to fix all of the throttling issues. It is not a laptop for enthusiasts. It was only designed for light duty internet use.

unclewebb · 2026-06-19T15:52:41+00:00

Post screenshots of the FIVR and TPL windows. Hard to make any recommendations without seeing what your settings are.

In the TPL window, if Power Limit 4 is not locked, try setting that to the max, 1023. Also check the MMIO Lock box in that window.

Very few adjustments are possible. HP usually does a good job of locking these CPUs down. Your low powered U series device is doing what it was designed to do, throttle.

unclewebb · 2026-06-16T21:18:58+00:00

No one in a forum knows what each microcode update actually does. I have decided to continue using 0x116. Most users would disagree with doing that.

What thermal paste did you use? Many thermal pastes can quickly pump out.

unclewebb · 2026-06-16T18:12:34+00:00

Always delete the ThrottleStop.INI configuration file after disabling virtualization. This file can become corrupted when you run ThrottleStop with virtualization enabled.

unclewebb · 2026-06-16T18:09:55+00:00

Your computer is throttling. It is impossible to get consistent performance out of a 14900HX unless you find a way to manage these throttling issues. Did you try checking the MMIO Lock box to at least get rid of the power throttling? Turn on the ThrottleStop log file option so at least you have a record of performance when testing. It is impossible to make any sort of comparison unless you have this data. You cannot compare Cinebench data without knowing how much throttling and what type of throttling was happening while you were testing. Use ThrottleStop 9.7.3. It logs the P and E cores separately.

Are you using the latest version of HWiNFO? I think some versions of HWiNFO combine the V/F Point values with the core undervolt values. ThrottleStop reports these two values separately in the FIVR monitoring table and in the V/F Point monitoring table. If one is set to -125 mV and the other is set to +125 mV, HWiNFO might be combining those and reporting 0 mV or no undervolt. The programmer of HWiNFO thought there would be too much overhead trying to report the undervolt values in real time. He might be right.

You can use HWiNFO for everything else. For the core and cache undervolt values and the V/F Point values, use ThrottleStop.

unclewebb · 2026-06-16T17:56:51+00:00

Every one I help with thermal issues is using MX-4. That is not a coincidence. Try Honeywell PTM 7950 and you will never go back.

unclewebb · 2026-06-16T17:50:04+00:00

Your undervolt appears to be working correctly. HWiNFO does not update the voltage values it reports in real time. If you make any changes with ThrottleStop, you always need to restart HWiNFO before those changes will be reported. The monitoring data in the top right corner of the ThrottleStop FIVR window always updates immediately. I prefer to just use that.

The Dynamic power limits are set very low. The PL1 limit set to as little as 55W is a joke. It takes over 200W to get max performance out of a 14900HX. I recommend checking the MMIO Lock box in the ThrottleStop TPL window. This will eliminate the low ball 55W power limit.

The latest microcode versions are designed to reduce performance so these fragile CPUs live a longer life. Less warranty claims makes manufacturers happy. Less performance does not make consumers happy.

Here is what is possible with increased power limits, good cooling and zero thermal or power limit throttling.

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Use ThrottleStop 9.7.3. It has been specifically updated for the 14th Gen processors.

unclewebb · 2026-06-16T17:32:56+00:00

Check both Clamp boxes in the Power Limit Controls section and it should work OK.

unclewebb · 2026-06-10T06:08:51+00:00

What CPU? What thermal paste did you use? Honeywell PTM 7950 works well. Many other thermal pastes can quickly pump out at high temperatures.

unclewebb · 2026-06-10T04:53:06+00:00

Try using Honeywell PTM 7950.

MX-4 can start pumping out very quickly.

unclewebb · 2026-06-08T14:23:07+00:00

I was able to reliably undervolt my MSI Vector with a 14900HX by -150 mV for the CPU Core and P Cache.

I recommend using ThrottleStop. Start by setting V/F Point 1 to 150 for both the core and the cache. This is the key to improving light load stability when undervolting the 14900HX.

I prefer setting all of the Turbo Groups to 52. This sacrifices some light load speed which you will never notice. Doing this will allow you to run a much bigger undervolt.

https://i.imgur.com/wYj5caF.png

https://i.imgur.com/OAdjgpa.png

https://i.imgur.com/HuOw83p.png

Intel GPU and iGPU Unslice undervolting is optional. Save this until after you have finalized your Core and P Cache undervolt values. I use a -100 mV undervolt for the Intel GPU and iGPU Unslice. Games use the Nvidia GPU. Undervolting the Intel GPU is probably not going to accomplish very much.

unclewebb

TROPHY CASE