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Difficulties configuring TDP on Clevo laptop

GreenGuy

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Joined
May 31, 2021
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Hello everyone!

First of all, thanks and congratulations to @unclewebb for his work on this awesome tool.

I would like to ask of some guidance from the forum, as I am having difficulties doing something that stands to reason that would be possible.

I have recently acquired a Clevo NS51 with an intel i7-1165G7. My use case involves a Thunderbolt eGPU. After installing Windows 10 LTSC, updating it and installing the manufacturer's suggested SW packages, performance was severely hurt by poor thermals. After some mods (thermal pads & liquid metal) the laptop was able to sustain clocks of up to 4.7 GHz all cores (according to HWInfo) with a power consumption of 45.33W peak and a peak temp of 84 Celsius (normally 45/60), getting a score of 6000 on Cinebench R23. Pretty impressive in my opinion. However, the eGPU was not usable, as (according to event viewer) the nvidia driver would crash. What this results in is 5-10 minutes of eGPU uptime, followed by a disconnect, losing my external displays and power source.

It is worth noting that the Thunderbolt charging is capable of providing 60W, where the barrel charger provides of only 45W. So, there's plenty of juice there to be used.

Funny business begins here:

Reinstalling Windows and NOT installing the manufacturer's software (namely Clevo Control Center) results on perfect stability of my eGPU connection, but a TDP limit of 20W. Reinstalling the software gives me my performance back but reproduces the issue. Hence how I have ended up here! Looking for ways to bypass this limitation. I have disabled and locked turbo power limits under FIVR, tried messing with the TPL limits... nothing seems to stick. Any stress test (either running demanding tasks, or plain benchmarks or stress tests) end up in a quick spike of clock speeds followed by a massive dip, down to 1000-1200 Hz, whichever can be managed with 20W. Running TS Bench, I get the red POWER alert, ad under limits, my PL1 lights up.

I have tried to find documentation on the different settings on TS and what they do, but besides the main guide, I haven't found much, and I feel like a monkey pulling levers. Any guidance will be much appreciated.
 
Intel CPUs use multiple turbo power limits. The power limit that is set to the lowest value is the one that is used. ThrottleStop has access to the main power limit in the TPL window and the FIVR Disable and Lock option usually takes care of the secondary power limits. There is a third power limit that ThrottleStop does not have access to which some manufacturers use. If this one is set to 20W then that is your limit.

If your computer uses the Intel Dynamic Platform and Thermal Framework Driver (DPTF), do a Google search for how to remove this driver and how to block Windows so it is not reinstalled. I believe the method is to take ownership of the DPTF driver folder away from Windows so it cannot reinstall this driver. I have zero hands on experience with this issue.

If this does not work then I am out of ideas. It sounds like the Clevo Control Center is able to set a power limit in the hardware that ThrottleStop does not have access to. Some laptops have this issue. Without access to hardware or access to documentation, there is no way for me to solve this issue. If you ever find a way around this problem, post an update.
 
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