Acer Aspire A515-57G PL1 Limit issues

[Deleted member 249728]

Hi. When putting the CPU under load (in this case Intel XTU benchmark) after a short PL2 boost the CPU naturally goes to PL1 (which is normal). Despite ThrottleStop and Intel XTU showing the PL1 limit as 40W, the CPU goes into 28W limit. Is this some sort of Acer hardware level limitation that cannot be disabled? I've attached TrottleStop logs, screenshots of ThrottleStop settings and screenshots of the same settings, but in Intel XTU.
Specs:
I7-1260P
RTX 2050
16GB
1TB
Model: Acer Aspire A515-57G

 

[unclewebb]

Is this some sort of Acer hardware level limitation

Typically Acer uses an embedded controller EC to enforce the turbo power limits. The EC limits are separate from the MSR and MMIO turbo power limits that ThrottleStop has access to. That means ThrottleStop cannot be used to bypass EC power limit throttling problems.

The i7-1260P has a 28 Watt base power rating. I disagree with limiting a CPU to the base power level but ultimately, Acer can choose to do whatever they want.

Intel® Core™ i7-1260P Processor (18M Cache, up to 4.70 GHz) - Product Specifications | Intel

Intel® Core™ i7-1260P Processor (18M Cache, up to 4.70 GHz) quick reference with specifications, features, and technologies.

www.intel.com

 

[Deleted member 249728]

Typically Acer uses an embedded controller EC to enforce the turbo power limits. The EC limits are separate from the MSR and MMIO turbo power limits that ThrottleStop has access to. That means ThrottleStop cannot be used to bypass EC power limit throttling problems.

That sucks. Correct me if I'm wrong, but I think I read on here that some people uninstalled some type of driver (I don't remember exactly what driver) and they were able to bypass it. Is that true and if yes, which driver exactly? If yes, does this break anything?

 

[unclewebb]

what driver

Some people might have uninstalled the Intel Dynamic Tuning driver and blocked Windows from reinstalling this driver. I have never owned a computer where I needed to do this.

If yes, does this break anything?

Anything is possible when you try to run a laptop beyond the power level that a manufacturer has set. Perhaps the voltage regulators cannot support running the CPU at 40 Watts indefinitely.

 

[ShrimpBrime]

When you see the Core ICC Max greyed out in XTU, the board is hard locked to the CPU factory limits, in this case 28w. Nothing you can do except enjoy the battery saving features.

 

[Deleted member 249728]

That sucks, thanks for the help.