Question i5-11400F clock speed not reaching the maximum turbo speed ?

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C1rm0ska

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Jan 17, 2023
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Hello!
My CPU's clock speed isn't running at the maximum speed it should.
It should run at 4.4GHz, but it only runs at 4.17GHz.
I have seen tons of videos, but none of them helped
Here are some specs:
CPU: I5-11400F
Mb: HP 8860
image.png

Also, I want my CPU's speed to be at the maximum speed every time
 
Hey there,

You can use Throttlestop to determine what's happening with the CPU.

Install it, and run. Open the TS Bench and the Limit reasons. Then run a small bench (120) and watch for any red lights in the Limit box. It might highlight one or more of the following:

EDPOther
PL1
PL2

It could also show BDPROCHOT in the main window,
 
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C1rm0ska

Prominent
Jan 17, 2023
190
5
585
Hey there,

You can use Throttlestop to determine what's happening with the CPU.

Install it, and run. Open the TS Bench and the Limit reasons. Then run a small bench (120) and watch for any red lights in the Limit box. It might highlight one or more of the following:

EDPOther
PL1
PL2

It could also show BDPROCHOT in the main window,
Hi, only PL 1 is there.
Sometimes it's yellow and sometimes it's red while doing TS Bench.
 
ThrottleStop Limit Reasons is telling you that your CPU is power limit throttling. The 11400F has a 65W TDP limit which is not enough power to run your CPU at full speed indefinitely.

https://ark.intel.com/content/www/u...1400f-processor-12m-cache-up-to-4-40-ghz.html

If you want full speed indefinitely, use ThrottleStop or go into the BIOS and increase your PL1 and PL2 turbo power limits. You can do this in the ThrottleStop TPL window. Many motherboards automatically set these limits to the max, 4095W. This will prevent any power limit throttling. If you have adequate cooling, this type of throttling is unnecessary on a desktop computer which is plugged in.

For my desktop computer, I set both power limits to 300 and I also checked the MMIO Lock box in ThrottleStop.

jSkkr2I.png


As already mentioned in this thread, 4.4 GHz is the maximum speed when a single core is active. If your friends are using monitoring software that is telling them that their CPU is always running at 4.4 GHz, tell them they need to find some new monitoring software.
 
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C1rm0ska

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Jan 17, 2023
190
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585
ThrottleStop Limit Reasons is telling you that your CPU is power limit throttling. The 11400F has a 65W TDP limit which is not enough power to run your CPU at full speed indefinitely.

https://ark.intel.com/content/www/u...1400f-processor-12m-cache-up-to-4-40-ghz.html

If you want full speed indefinitely, use ThrottleStop or go into the BIOS and increase your PL1 and PL2 turbo power limits. You can do this in the ThrottleStop TPL window. Many motherboards automatically set these limits to the max, 4095W. This will prevent any power limit throttling. If you have adequate cooling, this type of throttling is unnecessary on a desktop computer which is plugged in.

For my desktop computer, I set both power limits to 300 and I also checked the MMIO Lock box in ThrottleStop.

jSkkr2I.png
Like so?
image.png
 

C1rm0ska

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Jan 17, 2023
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@C1rm0ska
The MSR power limits have been locked by the BIOS so you cannot change them by using ThrottleStop. You can only check the MMIO Lock box near the top right which might help a little bit.

If there are no power limit options available in the BIOS then you are out of luck.
I was planning to buy a new motherboard anyways.
- MSI B560M.

I Locked the MMIO and It's running great without PL1
 

C1rm0ska

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Jan 17, 2023
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585
@C1rm0ska
The MSR power limits have been locked by the BIOS so you cannot change them by using ThrottleStop. You can only check the MMIO Lock box near the top right which might help a little bit.

If there are no power limit options available in the BIOS then you are out of luck.
The CPU as always, is not that good compared to the other ones. https://www.userbenchmark.com/UserRun/58485541
Maybe the motherboard is the issue?
 
But nothing in the background is running.
Have a look at what ThrottleStop reports for C0% when your computer is idle at the desktop with only ThrottleStop open. With a 6 core CPU, the C0% should be around 0.5% or less. That is normal. With 10 cores to share the load, less than 0.1% is possible. This is the most accurate measure of what a CPU is doing when it is idle. If your C0% is high or quite variable, your benchmark scores will suffer.

lDdHZMv.png


it's sometimes below average and way below average
Your power limits are locked. For a short period of time, your CPU can run at up to the 154W PL2 limit. After approximately 28 seconds, the CPU will be limited to only 100W. If you do back to back benchmark tests, your second test will likely be a lot worse than your first test.

Intel says turbo boost is like water in a bath tub. If you completely drain the turbo boost tub during one benchmark test, you will have to wait for the CPU to recover. Watch the ThrottleStop reported multiplier and watch the Limit Reasons window while Cinebench testing. Do you see PL1 or PL2 throttling during this test? With locked power limits like you have, there is nothing you can do about power limit throttling. If you see some other type of throttling in Limit Reasons, post a screenshot while it is happening.

Turn on the Log File option on the main screen of ThrottleStop so you have a record of your CPU performance. Go play a game for 15 minutes or do some benchmark testing. The log file will show how your CPU is performing. Your less than great UserBenchMark score is likely because of your locked power limits and stuff running in the background that you are not aware of. Look in the Task Manager and go to the Details tab. How does that look? My computer usually shows 99% for System Idle Process. That is with multiple tabs open in Chrome, the Paint.NET program open, File Explorer open and ThrottleStop open.

You can copy and paste log file data to www.pastebin.com

Edit - Your UserBenchMark score shows Background CPU 10%. My computer shows only 2%. That is why when I run this benchmark I get much better than average results for my CPU. Concentrating on the little things can make a big difference.

K22nCvt.png
 
Last edited:

C1rm0ska

Prominent
Jan 17, 2023
190
5
585
Have a look at what ThrottleStop reports for C0% when your computer is idle at the desktop with only ThrottleStop open. With a 6 core CPU, the C0% should be around 0.5% or less. That is normal. With 10 cores to share the load, less than 0.1% is possible. This is the most accurate measure of what a CPU is doing when it is idle. If your C0% is high or quite variable, your benchmark scores will suffer.

lDdHZMv.png



Your power limits are locked. For a short period of time, your CPU can run at up to the 154W PL2 limit. After approximately 28 seconds, the CPU will be limited to only 100W. If you do back to back benchmark tests, your second test will likely be a lot worse than your first test.

Intel says turbo boost is like water in a bath tub. If you completely drain the turbo boost tub during one benchmark test, you will have to wait for the CPU to recover. Watch the ThrottleStop reported multiplier and watch the Limit Reasons window while Cinebench testing. Do you see PL1 or PL2 throttling during this test? With locked power limits like you have, there is nothing you can do about power limit throttling. If you see some other type of throttling in Limit Reasons, post a screenshot while it is happening.

Turn on the Log File option on the main screen of ThrottleStop so you have a record of your CPU performance. Go play a game for 15 minutes or do some benchmark testing. The log file will show how your CPU is performing. Your less than great UserBenchMark score is likely because of your locked power limits and stuff running in the background that you are not aware of. Look in the Task Manager and go to the Details tab. How does that look? My computer usually shows 99% for System Idle Process. That is with multiple tabs open in Chrome, the Paint.NET program open, File Explorer open and ThrottleStop open.

You can copy and paste log file data to www.pastebin.com

Edit - Your UserBenchMark score shows Background CPU 10%. My computer shows only 2%. That is why when I run this benchmark I get much better than average results for my CPU. Concentrating on the little things can make a big difference.

K22nCvt.png
The CPU is at 0.5 C0% while literally everything closed. Whenever I move my mouse around, it goes up to 10%.
 

C1rm0ska

Prominent
Jan 17, 2023
190
5
585
Have a look at what ThrottleStop reports for C0% when your computer is idle at the desktop with only ThrottleStop open. With a 6 core CPU, the C0% should be around 0.5% or less. That is normal. With 10 cores to share the load, less than 0.1% is possible. This is the most accurate measure of what a CPU is doing when it is idle. If your C0% is high or quite variable, your benchmark scores will suffer.

lDdHZMv.png



Your power limits are locked. For a short period of time, your CPU can run at up to the 154W PL2 limit. After approximately 28 seconds, the CPU will be limited to only 100W. If you do back to back benchmark tests, your second test will likely be a lot worse than your first test.

Intel says turbo boost is like water in a bath tub. If you completely drain the turbo boost tub during one benchmark test, you will have to wait for the CPU to recover. Watch the ThrottleStop reported multiplier and watch the Limit Reasons window while Cinebench testing. Do you see PL1 or PL2 throttling during this test? With locked power limits like you have, there is nothing you can do about power limit throttling. If you see some other type of throttling in Limit Reasons, post a screenshot while it is happening.

Turn on the Log File option on the main screen of ThrottleStop so you have a record of your CPU performance. Go play a game for 15 minutes or do some benchmark testing. The log file will show how your CPU is performing. Your less than great UserBenchMark score is likely because of your locked power limits and stuff running in the background that you are not aware of. Look in the Task Manager and go to the Details tab. How does that look? My computer usually shows 99% for System Idle Process. That is with multiple tabs open in Chrome, the Paint.NET program open, File Explorer open and ThrottleStop open.

You can copy and paste log file data to www.pastebin.com

Edit - Your UserBenchMark score shows Background CPU 10%. My computer shows only 2%. That is why when I run this benchmark I get much better than average results for my CPU. Concentrating on the little things can make a big difference.

K22nCvt.png
https://pastebin.com/U84dPbMf
 

C1rm0ska

Prominent
Jan 17, 2023
190
5
585
The CPU is at 0.5 C0% while literally everything closed. Whenever I move my mouse around, it goes up to 10%.
Have a look at what ThrottleStop reports for C0% when your computer is idle at the desktop with only ThrottleStop open. With a 6 core CPU, the C0% should be around 0.5% or less. That is normal. With 10 cores to share the load, less than 0.1% is possible. This is the most accurate measure of what a CPU is doing when it is idle. If your C0% is high or quite variable, your benchmark scores will suffer.

lDdHZMv.png



Your power limits are locked. For a short period of time, your CPU can run at up to the 154W PL2 limit. After approximately 28 seconds, the CPU will be limited to only 100W. If you do back to back benchmark tests, your second test will likely be a lot worse than your first test.

Intel says turbo boost is like water in a bath tub. If you completely drain the turbo boost tub during one benchmark test, you will have to wait for the CPU to recover. Watch the ThrottleStop reported multiplier and watch the Limit Reasons window while Cinebench testing. Do you see PL1 or PL2 throttling during this test? With locked power limits like you have, there is nothing you can do about power limit throttling. If you see some other type of throttling in Limit Reasons, post a screenshot while it is happening.

Turn on the Log File option on the main screen of ThrottleStop so you have a record of your CPU performance. Go play a game for 15 minutes or do some benchmark testing. The log file will show how your CPU is performing. Your less than great UserBenchMark score is likely because of your locked power limits and stuff running in the background that you are not aware of. Look in the Task Manager and go to the Details tab. How does that look? My computer usually shows 99% for System Idle Process. That is with multiple tabs open in Chrome, the Paint.NET program open, File Explorer open and ThrottleStop open.

You can copy and paste log file data to www.pastebin.com

Edit - Your UserBenchMark score shows Background CPU 10%. My computer shows only 2%. That is why when I run this benchmark I get much better than average results for my CPU. Concentrating on the little things can make a big difference.

K22nCvt.png
Even with 2% background CPU, I don't get above 90%. Power limit is the problem here, yeah.
-Edit:
It ain't even above average.
https://www.userbenchmark.com/UserRun/58493686
 
Last edited:
  1. 2023-01-19 05:38:50 40.86 100.0 100.0 0 83 1.0930 99.8 PL1
  2. 2023-01-19 05:38:51 40.91 100.0 100.0 0 83 1.0928 99.9 PL1
  3. 2023-01-19 05:38:52 40.95 100.0 100.0 0 83 1.0958 99.9 PL1
  4. 2023-01-19 05:38:53 40.94 100.0 100.0 0 83 1.0924 99.9 PL1
  5. 2023-01-19 05:38:54 40.89 100.0 100.0 0 84 1.0841 99.8 PL1
  6. 2023-01-19 05:38:55 40.87 100.0 100.0 0 84 1.0918 99.9 PL1
  7. 2023-01-19 05:38:56 40.81 100.0 100.0 0 83 1.0907 99.9 PL1
  8. 2023-01-19 05:38:57 40.77 100.0 100.0 0 83 1.0830 99.9 PL1
  9. 2023-01-19 05:38:58 40.79 100.0 100.0 0 83 1.0905 99.8 PL1
  10. 2023-01-19 05:38:59 40.80 100.0 100.0 0 83 1.0916 99.9 PL1
@C1rm0ska

Your ThrottleStop log file shows lots of PL1 power limit throttling right at 100W. Your BIOS has locked the long term PL1 power limit to 100W so during any long term test, the CPU will be forced to slow down so it does not exceed 100W.

Consider yourself lucky. The 11400F has a TDP rating of only 65W.

https://ark.intel.com/content/www/u...1400f-processor-12m-cache-up-to-4-40-ghz.html

Most laptop manufacturers set PL1 equal to the Intel rated TDP. I am sure many desktop computers do the same. Locking your 11400F to 65W would cause a lot more throttling during a full load stress test.

The log file shows that the 100W PL1 limit is only reducing performance by 100 MHz to 150 MHz. That means your benchmark scores will never be as good compared to a similar computer with unlocked power limits. During normal use, there will be virtually zero difference in performance compared to every other computer with an 11400F.

i5-11400F clock speed not reaching the maximum turbo speed?
That statement is not true. Your CPU reaches its full maximum turbo boost speed. It simply cannot maintain maximum speed indefinitely. This is true for many Intel computers. Next time you go computer shopping, now you know what to look for. Unlocked power limits will allow you to run your CPU at its full rated speed indefinitely.
 
Last edited:
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C1rm0ska

Prominent
Jan 17, 2023
190
5
585
  1. 2023-01-19 05:38:50 40.86 100.0 100.0 0 83 1.0930 99.8 PL1
  2. 2023-01-19 05:38:51 40.91 100.0 100.0 0 83 1.0928 99.9 PL1
  3. 2023-01-19 05:38:52 40.95 100.0 100.0 0 83 1.0958 99.9 PL1
  4. 2023-01-19 05:38:53 40.94 100.0 100.0 0 83 1.0924 99.9 PL1
  5. 2023-01-19 05:38:54 40.89 100.0 100.0 0 84 1.0841 99.8 PL1
  6. 2023-01-19 05:38:55 40.87 100.0 100.0 0 84 1.0918 99.9 PL1
  7. 2023-01-19 05:38:56 40.81 100.0 100.0 0 83 1.0907 99.9 PL1
  8. 2023-01-19 05:38:57 40.77 100.0 100.0 0 83 1.0830 99.9 PL1
  9. 2023-01-19 05:38:58 40.79 100.0 100.0 0 83 1.0905 99.8 PL1
  10. 2023-01-19 05:38:59 40.80 100.0 100.0 0 83 1.0916 99.9 PL1
@C1rm0ska

Your ThrottleStop log file shows lots of PL1 power limit throttling right at 100W. Your BIOS has locked the long term PL1 power limit to 100W so during any long term test, the CPU will be forced to slow down so it does not exceed 100W.

Consider yourself lucky. The 11400F has a TDP rating of only 65W.

https://ark.intel.com/content/www/u...1400f-processor-12m-cache-up-to-4-40-ghz.html

Most laptop manufacturers set PL1 equal to the Intel rated TDP. I am sure many desktop computers do the same. Locking your 11400F to 65W would cause a lot more throttling during a full load stress test.

The log file shows that the 100W PL1 limit is only reducing performance by 100 MHz to 150 MHz. That means your benchmark scores will never be as good compared to a similar computer with unlocked power limits. During normal use, there will be virtually zero difference in performance compared to every other computer with an 11400F.


That statement is not true. Your CPU reaches its full maximum turbo boost speed. It simply cannot maintain maximum speed indefinitely. This is true for many Intel computers. Next time you go computer shopping, now you know what to look for. Unlocked power limits will allow you to run your CPU at its full rated speed indefinitely.
Okay, thank you.
 

C1rm0ska

Prominent
Jan 17, 2023
190
5
585
Hey there,

You can use Throttlestop to determine what's happening with the CPU.

Install it, and run. Open the TS Bench and the Limit reasons. Then run a small bench (120) and watch for any red lights in the Limit box. It might highlight one or more of the following:

EDPOther
PL1
PL2

It could also show BDPROCHOT in the main window,
Hello again, what does "EDP Other" mean?
image.png