F5F Stay Refreshed Hardware Desktop Adjust throttle stop configurations to avoid 56W cap on Helios 300 PH315-52 from 2019

Adjust throttle stop configurations to avoid 56W cap on Helios 300 PH315-52 from 2019

Adjust throttle stop configurations to avoid 56W cap on Helios 300 PH315-52 from 2019

M
MrKryp
Senior Member
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643
08-18-2016, 01:06 PM
#1
I've been experimenting with throttle stop and still can't exceed 56 watts on PL1. I know the CPU should handle it, but it looks like Acer has capped it at that level. Is there a way around this? No obvious settings in the BIOS. My Acer Predator Helios 300 PH315-52 (2019) i7-9750h 1660ti
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M
MrKryp
08-18-2016, 01:06 PM #1

I've been experimenting with throttle stop and still can't exceed 56 watts on PL1. I know the CPU should handle it, but it looks like Acer has capped it at that level. Is there a way around this? No obvious settings in the BIOS. My Acer Predator Helios 300 PH315-52 (2019) i7-9750h 1660ti

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M
Mafia3803
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59
08-18-2016, 06:15 PM
#2
Hello, if performance is constrained, verify it's due to CPU throttling rather than VRM limitations.
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M
Mafia3803
08-18-2016, 06:15 PM #2

Hello, if performance is constrained, verify it's due to CPU throttling rather than VRM limitations.

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Red_Faction419
Junior Member
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16
08-19-2016, 02:34 AM
#3
Acer often employs an embedded controller to manage CPU power, separating its turbo limits from ThrottleStop’s access to MSR and MMIO settings. Your laptop performs well with cooling, but the EC power cap remains restrictive. Adjusting the IMON Slope value to 50 can mask actual consumption, removing power throttling. Accessing this setting in BIOS is tricky—it's usually hidden. Search online for your model’s UEFI method; others might have similar solutions. Additionally, undervolting the Intel GPU and matching it with iGPU adjustments could help free up CPU resources. Consider further tweaking the cache voltage by 5–10 mV for better performance.
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Red_Faction419
08-19-2016, 02:34 AM #3

Acer often employs an embedded controller to manage CPU power, separating its turbo limits from ThrottleStop’s access to MSR and MMIO settings. Your laptop performs well with cooling, but the EC power cap remains restrictive. Adjusting the IMON Slope value to 50 can mask actual consumption, removing power throttling. Accessing this setting in BIOS is tricky—it's usually hidden. Search online for your model’s UEFI method; others might have similar solutions. Additionally, undervolting the Intel GPU and matching it with iGPU adjustments could help free up CPU resources. Consider further tweaking the cache voltage by 5–10 mV for better performance.

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