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Help interpret throttlestop log

Z

z3ro grvty

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Nov 16, 2023
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Below is a log file from throttlestop that I need help with, to understand what is happening with my CPU frequencies and wattage.
 

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Lots of power limit throttling is killing the performance of your computer. Post some ThrottleStop screenshots. Hard to make any suggestions with only a log file to look at.
 
unclewebb said:
Lots of power limit throttling is killing the performance of your computer. Post some ThrottleStop screenshots. Hard to make any suggestions with only a log file to look at.
Click to expand...
OK let me send screenshots.

unclewebb said:
Lots of power limit throttling is killing the performance of your computer. Post some ThrottleStop screenshots. Hard to make any suggestions with only a log file to look at.
Click to expand...
Here are the screenshots, hope they'll help
 

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Code: 
   DATE       TIME    MULTI   C0%   CKMOD  BAT_mW  TEMP    VID   POWER
2023-11-16  16:20:41  24.59   48.6  100.0       0   69   0.8439   14.7   PL1
2023-11-16  16:20:42  15.71   56.3  100.0       0   64   0.6837    9.8   PL1
2023-11-16  16:20:43   8.44   77.6  100.0       0   62   0.6422    7.9   PL1
2023-11-16  16:20:44   8.00   78.6  100.0       0   62   0.6427    7.3   PL1
2023-11-16  16:20:45   8.00   75.8  100.0       0   62   0.6422    7.2   PL1

Many Dell laptops have the same power limit throttling problem that your laptop has. I thought it started with Dell laptops that had Intel 8th Gen CPUs but some 7th Gen laptops might have this problem too.

The ThrottleStop log file shows what is happening. Some laptops use an embedded controller (EC) which incorrectly force feeds low power limits to the CPU. A laptop with a CPU that has a 45W TDP rating might be forced to as little as 5W or less. It might be a bug where this limit is set to 0 watts. This forces the CPU to slow down as much as possible so it does not exceed 0 Watts or 5 Watts. This is impossible so the CPU is reduced to its minimum speed.

The 8.00 multiplier is as slow as these Intel CPUs can run. At 69°C the CPU temperature is fine so that is not an issue. This throttling can go on and on indefinitely. The CPU will speed up a little and then the power limit will drop again and the CPU will slow down to 798 MHz. This problem makes these Dell laptops unusable for anything beyond checking your email. Dell has never owned up to this problem or provided a BIOS update to fix this problem. Users that I have previously helped have contacted Dell and been told that their laptop is running by design. This extreme throttling problem is only a feature of Dell laptops from this era.

Hopefully the throttling scheme Dell is using on your laptop is the old style scheme. Most Dell laptops with 7th Gen CPUs can be fixed by using ThrottleStop. There is no easy fix for the 8th Gen and newer Dell laptops.

Edit - Try checking the MMIO Lock box which is near the top right of the TPL window. Clear the Disable Controls box.

In the FIVR window check the Unlock Adjustable Voltage box. Set IccMax for both the core and the cache to the max which is 255.75.

I do not think this will make any difference but there is nothing else you can try. ThrottleStop does not have a fix for EC power limit throttling problems. I gave up on Dell at this time so I never got around to trying to fix the unique EC power limit throttling problem that Dell created.
 
Last edited:
unclewebb said:
Code: 
   DATE       TIME    MULTI   C0%   CKMOD  BAT_mW  TEMP    VID   POWER
2023-11-16  16:20:41  24.59   48.6  100.0       0   69   0.8439   14.7   PL1
2023-11-16  16:20:42  15.71   56.3  100.0       0   64   0.6837    9.8   PL1
2023-11-16  16:20:43   8.44   77.6  100.0       0   62   0.6422    7.9   PL1
2023-11-16  16:20:44   8.00   78.6  100.0       0   62   0.6427    7.3   PL1
2023-11-16  16:20:45   8.00   75.8  100.0       0   62   0.6422    7.2   PL1

Many Dell laptops have the same power limit throttling problem that your laptop has. I thought it started with Dell laptops that had Intel 8th Gen CPUs but some 7th Gen laptops might have this problem too.

The ThrottleStop log file shows what is happening. Some laptops use an embedded controller (EC) which incorrectly force feeds low power limits to the CPU. A laptop with a CPU that has a 45W TDP rating might be forced to as little as 5W or less. It might be a bug where this limit is set to 0 watts. This forces the CPU to slow down as much as possible so it does not exceed 0 Watts or 5 Watts. This is impossible so the CPU is reduced to its minimum speed.

The 8.00 multiplier is as slow as these Intel CPUs can run. At 69°C the CPU temperature is fine so that is not an issue. This throttling can go on and on indefinitely. The CPU will speed up a little and then the power limit will drop again and the CPU will slow down to 798 MHz. This problem makes these Dell laptops unusable for anything beyond checking your email. Dell has never owned up to this problem or provided a BIOS update to fix this problem. Users that I have previously helped have contacted Dell and been told that their laptop is running by design. This extreme throttling problem is only a feature of Dell laptops from this era.

Hopefully the throttling scheme Dell is using on your laptop is the old style scheme. Most Dell laptops with 7th Gen CPUs can be fixed by using ThrottleStop. There is no easy fix for the 8th Gen and newer Dell laptops.
Click to expand...
I get you, so what would be the fix for my laptop, coz I basically can't do any work with this laptop right now.

unclewebb said:
Code: 
   DATE       TIME    MULTI   C0%   CKMOD  BAT_mW  TEMP    VID   POWER
2023-11-16  16:20:41  24.59   48.6  100.0       0   69   0.8439   14.7   PL1
2023-11-16  16:20:42  15.71   56.3  100.0       0   64   0.6837    9.8   PL1
2023-11-16  16:20:43   8.44   77.6  100.0       0   62   0.6422    7.9   PL1
2023-11-16  16:20:44   8.00   78.6  100.0       0   62   0.6427    7.3   PL1
2023-11-16  16:20:45   8.00   75.8  100.0       0   62   0.6422    7.2   PL1

Many Dell laptops have the same power limit throttling problem that your laptop has. I thought it started with Dell laptops that had Intel 8th Gen CPUs but some 7th Gen laptops might have this problem too.

The ThrottleStop log file shows what is happening. Some laptops use an embedded controller (EC) which incorrectly force feeds low power limits to the CPU. A laptop with a CPU that has a 45W TDP rating might be forced to as little as 5W or less. It might be a bug where this limit is set to 0 watts. This forces the CPU to slow down as much as possible so it does not exceed 0 Watts or 5 Watts. This is impossible so the CPU is reduced to its minimum speed.

The 8.00 multiplier is as slow as these Intel CPUs can run. At 69°C the CPU temperature is fine so that is not an issue. This throttling can go on and on indefinitely. The CPU will speed up a little and then the power limit will drop again and the CPU will slow down to 798 MHz. This problem makes these Dell laptops unusable for anything beyond checking your email. Dell has never owned up to this problem or provided a BIOS update to fix this problem. Users that I have previously helped have contacted Dell and been told that their laptop is running by design. This extreme throttling problem is only a feature of Dell laptops from this era.

Hopefully the throttling scheme Dell is using on your laptop is the old style scheme. Most Dell laptops with 7th Gen CPUs can be fixed by using ThrottleStop. There is no easy fix for the 8th Gen and newer Dell laptops.

Edit - Try checking the MMIO Lock box which is near the top right of the TPL window. Clear the Disable Controls box.

In the FIVR window check the Unlock Adjustable Voltage box. Set IccMax for both the core and the cache to the max which is 255.75.

I do not think this will make any difference but there is nothing else you can try. ThrottleStop does not have a fix for EC power limit throttling problems. I gave up on Dell at this time so I never got around to trying to fix the unique EC power limit throttling problem that Dell created.
Click to expand...
I tried this but it's still telling me that PL1, PL2 and EDP are still the limits. Note: I have an i7-7700HQ
 
unclewebb said:
There is no known fix for Dell laptops that have this power limit throttling problem.
Click to expand...
To be able to undervolt and all I had to downgrade my bios, as you know Dell thought it very smart to lock the bios. I made a custom bios there is a video on YouTube that walks you through the process, surprisingly it worked. During the entire duration of our conversation, with me trying to get your advice to work, I was thinking that this custom bios might be the issue. So in a move of desperation I re-installed the latest bios and to my surprise the power limit throttle was gone, but because the clock speeds are high, now my pc is heating up more, not that it's thermal throttling though.
 
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