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ThinkPad P53 I9 9880H won't go over 40x / 3.99ghz

dude0001

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Something appers to be locked and notater what I try to tweak the boost ratio won't go over 40x and the CPU maxes out at 3.99ghz. I have tried tweaking everything I can find in ThrottleStop. I am not getting throttled by hear or power, it just seems very hard coded locked at this max. The CPU should be able x46 ratio when all 8 cores are active according to the specs.

How can I troubleshoot to see what causing this artificially low ratio?
 
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The processor clocks at between 2.3 - 4.8 GHz (4.1 GHz with 8 cores) and can execute up to sixteen threads simultaneously thanks to Hyper-Threading. The 4.8 GHz can only be reached using the "Thermal Velocity Boost" which allows one core to boost to 4.8 GHz (+200 MHz) as long as the CPU temperature is below 50°C.

 
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Are there any settings in the BiOS for the CPU? What are your temps?
 

dude0001

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The processor clocks at between 2.3 - 4.8 GHz (4.1 GHz with 8 cores) and can execute up to sixteen threads simultaneously thanks to Hyper-Threading. The 4.8 GHz can only be reached using the "Thermal Velocity Boost" which allows one core to boost to 4.8 GHz (+200 MHz) as long as the CPU temperature is below 50°C.

I am not talking about TVB or trying to get it up to 4.8. I am trying to get it above a hard ceiling of 3.9 I would love to see 4.1 and my understanding is I should be able to do 4.3 or so with 8 cores loaded.

I couple people have asked about temps, again I am not being throttled according to TS, temp or otherwise.
 
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Benchmark Scores pretty fast!
Since almost all of my laptops basically idle at around 40-50c i cant imagine that i9 is ever in a scenario where that boost kicks in for more than a split second.
 

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I am not talking about TVB or trying to get it up to 4.8. I am trying to get it above a hard ceiling of 3.9 I would love to see 4.1 and my understanding is I should be able to do 4.3 or so with 8 cores loaded.
Well it is doing 4GHz already. And I don't know where you are getting that it should be doing 4.3GHz when all 8 cores are loaded. The all core turbo is 4.8GHz, it's generally safe to assume a -100MHz or more drop for every core that's loaded. That puts it at the 4GHz you're getting. It might do 4.1GHz if hyperthreading isn't being heavily used(meaning 8 CPU intensive threads). But if the whole CPU is being used, 4GHz is likely as good as you are going to get.

Temps don't play a role here, except for the TVB to get to 4.8GHz. What is likely limiting you is the power consumption. It's going to clock down to stay under the 45w TDP.
 

unclewebb

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If you are using ThrottleStop, why not post some pictures of how you have the program setup. Try running the TS Bench test and set it to 1 Thread. Post a screenshot while this test is in progress. Include Limit Reasons in your screenshot and always take screenshots with the CPU loaded. Many laptops with the 9880H processor have some throttling issues. The default 45 Watt TDP rating is not nearly enough to run 8 cores at full speed continuously. If you raise the turbo power limits, then you can run into either heat or various other throttling problems.

The last ThinkPad P53 owner I was helping was having problems with throttling caused by the voltage regulator exceeding the current limit. VR CURRENT in ThrottleStop.
Do you have the core C states (C3, C6 or C7) enabled in the BIOS? One of these needs to be enabled so the CPU can reach its maximum frequency when lightly loaded.

The CPU should be able x46 ratio when all 8 cores are active according to the specs.
Can you post a link to those specs? If 48 is the maximum multiplier, it would be very unusual for this CPU to use the 46 multiplier when all 8 cores are active.
 
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I am not talking about TVB or trying to get it up to 4.8. I am trying to get it above a hard ceiling of 3.9 I would love to see 4.1 and my understanding is I should be able to do 4.3 or so with 8 cores loaded.

I couple people have asked about temps, again I am not being throttled according to TS, temp or otherwise.
You wont get it above 3.99 for that processor. I once tried that processor on a another laptop for a few months and never got above 4.0. The processor in that laptop is working like designed.
 
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