Modifying the Current/EDP limit throttling in Aspire TC-1780?

SamCem
SamCem Member Posts: 7 New User
edited September 27 in Aspire and Veriton Desktops

Hello,

I have a desktop “Aspire TC-1780” with Intel i5-13400, 16GB RAM, 180W power supply.
In the Cinebench R23 benchmark, I noticed that the multi-score of my PC (14500 points) is slightly lower than the values published on the Internet for the same processor (approx. 15900 points)

I finally found the cause thanks to the “Intel Extreme Tuning Utility” program: The turbo clock of the P-Cores is constantly “only” 3.8 Ghz in the benchmark instead of the max. possible 4.6 Ghz. This is because “Current/EDP Limit Throttling” is also constantly active, which limits the maximum power consumption to approx. 90-95W.

Since I couldn't find a setting in the BIOS to change this threshold, I tried using “ThrottleStop” to increase the power values Pl1 and PL2 - but this didn't lead to any change in the CPU clock, and “Current/EDP Limit Throttling” is still active in the benchmark.

Is there any other way to increase Current/EDP threshold?

I only want to increase it for a short time for testing purposes. In normal operation, the current 90W threshold probably makes sense anyway.

[Edited the thread to add model name to the title]

Answers

  • unclewebb
    unclewebb Member Posts: 29 Enthusiast WiFi Icon

    Set Power Limit 4 to a value of 0 in the ThrottleStop TPL window. You need an unlocked K series CPU to increase the IccMax current limits. If adjusting PL4 does not work then you are out of options.

  • SamCem
    SamCem Member Posts: 7 New User

    I set PL4 to 0, but nothing changed. My CPU is not a "K-series" but an i5-13400, so I'm not sure if its possible to unlock it to change current limits

  • unclewebb
    unclewebb Member Posts: 29 Enthusiast WiFi Icon

    It is not possible to unlock an i5-13400. The current limit is fixed and cannot be changed. Endless EDP throttling is the result. Next time you buy a laptop, get one with an unlocked HX processor.

  • billsey
    billsey ACE Posts: 34,219 Trailblazer

    Be aware that if you try to replace the CPU with a K series, the BIOS won't support the extra features and you will have to revamp the cooling to handle the extra TDP.

    Click on "Like" if you find my answer useful or click on "Yes" if it answers your question.

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