CPU stuck at 0,79 GHz

[Almdudler]

Hey
I have a problem with my CPU and have so far found out that it is being throttled. So far I have discovered that it seems to be throttled by EDP OTHER. Only now I don't know what to do and I would like to hope for help that can help me with the problem.
Many thanks in advance

[manikyath]

your cpu is idle, it is normal for it to be at 800MHz when idle.

 

 

[Almdudler]

3 minutes ago, manikyath said:

your cpu is idle, it is normal for it to be at 800MHz when idle.

 

 

But the utilization does not go above 22% or the speed does not go above 0.79 GHz even when I start a game or other applications

 

[manikyath]

1 minute ago, Almdudler said:

But the utilization does not go above 22% or the speed does not go above 0.79 GHz even when I start a game or other applications

 

utilization is not adjusted for frequency, if you're using 22% of 800MHz, that's roughly equivalent to 4% at full clock speed.

 

also.. do you have performance issues, or did you just happen to notice 800MHz and made it a problem?

[Almdudler]

1 minute ago, manikyath said:

utilization is not adjusted for frequency, if you're using 22% of 800MHz, that's roughly equivalent to 4% at full clock speed.

 

also.. do you have performance issues, or did you just happen to notice 800MHz and made it a problem?

When I tried to use the PC today, everything felt a bit more laggy and took longer. I tried restarting the PC and hoped it was just a little bug but somehow it takes longer to load things

[YoungBlade]

Am I reading correctly that your max Package Power is set to just 5W?

 

If that is accurate, it means that your motherboard is limiting the CPU to only using 5W of power - which is nothing for a desktop CPU.

 

Did you make any changes in your BIOS recently?

[Almdudler]

I have tried to change the following things in the bios to solve the problem but otherwise I have not changed anything that was not already there

[Almdudler]

12 minutes ago, YoungBlade said:

Am I reading correctly that your max Package Power is set to just 5W?

 

If that is accurate, it means that your motherboard is limiting the CPU to only using 5W of power - which is nothing for a desktop CPU.

 

Did you make any changes in your BIOS recently?

What can I do to give the CPU more power again and are the settings I have made bad or should I reset them?

[YoungBlade]

The settings you have there don't look like they would cause this, but if you're unsure what might have happened, a troubleshooting step would be to do a Factory Reset of the BIOS.

 

If you decide to do that, just don't forget you'll need to reenable XMP afterwards.

 

What specific motherboard do you have?

[Almdudler]

1 minute ago, YoungBlade said:

The settings you have there don't look like they would cause this, but if you're unsure what might have happened, a troubleshooting step would be to do a Factory Reset of the BIOS.

 

If you decide to do that, just don't forget you'll need to reenable XMP afterwards.

 

What specific motherboard do you have?

I have a asus rog z-390f motherboard

[Almdudler]

23 minutes ago, YoungBlade said:

The settings you have there don't look like they would cause this, but if you're unsure what might have happened, a troubleshooting step would be to do a Factory Reset of the BIOS.

 

If you decide to do that, just don't forget you'll need to reenable XMP afterwards.

 

What specific motherboard do you have?

I have now tried setting the bios to the default settings as you said. Unfortunately, nothing has changed. Perhaps these screenshots will help you to judge this better:

[YoungBlade]

Are those screenshots with the CPU under load or still idle? Do you have a program like Cinebench, OCCT, CPU-Z, or 7-Zip to run a benchmark that would put the CPU under load and see what that does?

[unclewebb]

 

8 hours ago, Almdudler said:

EDP OTHER

EDP Other throttling usually happens when one of the current limits is set too low. Set Power Limit 4 in the TPL window to the max, 1023. Post screenshots of the ThrottleStop TPL and FIVR windows. 

 

7 hours ago, YoungBlade said:

Am I reading correctly that your max Package Power is set to just 5W?

HWiNFO shows that the turbo power limits are set correctly. Power consumption is only 5W because the CPU is being limited to 800 MHz due to EDP current throttling. 

[Almdudler]

4 hours ago, YoungBlade said:

Are those screenshots with the CPU under load or still idle? Do you have a program like Cinebench, OCCT, CPU-Z, or 7-Zip to run a benchmark that would put the CPU under load and see what that does?

The pictures before were when the Pc was idle and here I have screenshots while cinebench is running.

[Almdudler]

1 hour ago, unclewebb said:

 

EDP Other throttling usually happens when one of the current limits is set too low. Set Power Limit 4 in the TPL window to the max, 1023. Post screenshots of the ThrottleStop TPL and FIVR windows. 

 

HWiNFO shows that the turbo power limits are set correctly. Power consumption is only 5W because the CPU is being limited to 800 MHz due to EDP current throttling. 

Sorry I'm not sure if I've done it right could you look over it or guide me on exactly what I need to do

[unclewebb]

@Almdudler

 

It appears the BIOS is not setting the CPU up correctly. Run CPU-Z and click on the Mainboard tab. It will show you what motherboard model you have and what BIOS version it is using.

 

 

Asus is really good at releasing BIOS updates so go to their website and see if there is an update available for your motherboard. Your Z390 motherboard will be using a different BIOS version compared to my Z490 motherboard in the screenshot. 

 

If updating the BIOS is not something you have done before then you can probably use ThrottleStop to fix this problem.

 

Open the FIVR window and press the Defaults button on the lower left side. This should fix the first problem I see. The default turbo ratios for your CPU are listed under the Turbo column. Pushing the Defaults button should set the CPU up to use these values.

 

 

As I previously mentioned, EDP Other throttling is caused by one or more of the current limits not being set correctly. IccMax for the core is set to the minimum value, 1.00. That is likely what is causing constant EDP Other throttling. This forces the CPU to run as slow as possible, 800 MHz. 

 

 

To unlock and adjust this, check the Unlock Adjustable Voltage box and then move the slider all the way to the right. The maximum value for your CPU is 255.75. You need to set IccMax for the CPU Core, CPU Cache, Intel GPU and iGPU Unslice all to the max, 255.75. This should fix the EDP current limit throttling problems you are having.  

 

 

Before exiting the FIVR window, in the lower right corner select the option, "OK - Save voltages immediately." and then press OK. 

 

 

Run something simple like the built in TS Bench test. When this benchmark is running is your CPU still stuck at 800 MHz? I hope not. 

 

Post an updated FIVR screenshot if you are still having problems. You might need to adjust the turbo power limits which can be done in the TPL window. The PL1 turbo power limit is set to the default value which is 95. If you see PL1 lighting up red in Limit Reasons, that means the CPU is throttling because this limit is set too conservatively. If that is the case, you can increase the PL1 limit. That will increase full load performance but it will create more heat.

 

You can set this power limit however you like. I set both power limits to 300 just to make sure that there is no power limit throttling. I have good cooling so I prefer maximum performance. 

 

 

Edit - Your screenshot shows that you have set Power Limit 4 to 1023. That setting is now correct. 

[Almdudler]

26 minutes ago, unclewebb said:

@Almdudler

 

It appears the BIOS is not setting the CPU up correctly. Run CPU-Z and click on the Mainboard tab. It will show you what motherboard model you have and what BIOS version it is using.

 

 

Asus is really good at releasing BIOS updates so go to their website and see if there is an update available for your motherboard. Your Z390 motherboard will be using a different BIOS version compared to my Z490 motherboard in the screenshot. 

 

If updating the BIOS is not something you have done before then you can probably use ThrottleStop to fix this problem.

 

Open the FIVR window and press the Defaults button on the lower left side. This should fix the first problem I see. The default turbo ratios for your CPU are listed under the Turbo column. Pushing the Defaults button should set the CPU up to use these values.

 

 

As I previously mentioned, EDP Other throttling is caused by one or more of the current limits not being set correctly. IccMax for the core is set to the minimum value, 1.00. That is likely what is causing constant EDP Other throttling which forces your CPU to run as slow as possible, 800 MHz. 

 

 

To unlock and adjust this, check the Unlock Adjustable Voltage box and then move the slider all the way to the right. The maximum value for your CPU is 255.75. You need to set IccMax for the CPU Core, CPU Cache, Intel GPU and iGPU Unslice all to the max, 255.75. This should fix the EDP current limit throttling problems you are having.  

 

 

Before exiting the FIVR window, in the lower right corner select the option, "OK - Save voltages immediately." and then press OK. 

 

 

 Run something simple like the built in TS Bench test. When this benchmark is running is your CPU still stuck at 800 MHz? I hope not. 

 

Post an updated FIVR screenshot if you are still having problems. You might need to adjust the turbo power limits which can be done in the TPL window. The PL1 turbo power limit is set to the default value which is 95. If you see PL1 lighting up red in Limit Reasons, that means the CPU is throttling because this limit is set too conservatively. If that is the case, you can increase the PL1 limit. That will increase full load performance but it will create more heat.

 

You can set this power limit however you like. I set both power limits to 300 just to make sure that there is no power limit throttling. I have good cooling so I prefer maximum performance. 

 

 

Edit - Your screenshot shows that you have set Power Limit 4 to 1023. That setting is now correct. 

First of all, thank you legend, the CPU is back above 800 MHz (it goes to about 4.40 GHz at least according to the task manager when I run Cinebench)

 

Now I have a few more questions: 
I have now changed it like this via Throttlestop does it mean that it stays like this when I restart the PC etc or do I have to change something else there.

 

And should I also increase the limits of PL1 when it works again? In Limits at ThrottleStop PL1 lights up red during the benchmark in the core section and outside the benchmark PL1 is yellow.
I use a Rock 4 from beQuiet to cool the CPU. Does it cool enough to change the settings like this?

 

I also wanted to ask whether it is enough to let the settings run permanently via ThrottleStop or whether I should update the bios (even though I have never done this before).
 

[unclewebb]

2 hours ago, Almdudler said:

I should update the bios

That is the best way to hopefully permanently fix this problem. Watch some YouTube videos for guidance. 

 

ThrottleStop will only fix this problem when you run it. ThrottleStop does not make any changes to the BIOS. Each time you start your computer, you will need to run ThrottleStop. You can have a look in the BIOS that you are using now. Look for the IccMax setting. This needs to be set to the max, 255.75. This setting might be broken so even if you set IccMax to the max in the BIOS, it might not set the CPU IccMax register correctly to 255.75. When set to only 1.00, it is throttle city.

 

You will also have to look in the BIOS to see why the turbo ratios are not being set correctly. The default values are displayed in the ThrottleStop FIVR window. You will need to manually enter the default turbo ratio values into the BIOS. Updating to the latest BIOS version should fix both of these problems so you no longer have to use ThrottleStop. 

 

I would increase the PL1 power limit to at least 150. Run Cinebench and see how hot your CPU gets. If you do not like the maximum temperature, you can lower the long term PL1 power limit. Any temperature under 100°C is safe but some users do not feel comfortable running their CPU at sky high temperatures. The CPU is designed by Intel to automatically throttle and slow down if it gets too hot. This keeps the CPU at a safe temperature no matter how high you set PL1. 

 

https://www.techspot.com/downloads/7579-cinebench-r23.html

 

Edit - Here is the IccMax setting in my Asus Z490 BIOS. 

 

 

The latest BIOS version for an Asus Z390-F Gaming motherboard is version 2102 and is available here:

 

https://rog.asus.com/motherboards/rog-strix/rog-strix-z390-f-gaming-model/helpdesk_bios/

 

It is best to copy the BIOS to a USB stick. I use EZ Flash to update the BIOS while in the BIOS. 

 

 

[Almdudler]

4 hours ago, unclewebb said:

That is the best way to hopefully permanently fix this problem. Watch some YouTube videos for guidance. 

 

ThrottleStop will only fix this problem when you run it. ThrottleStop does not make any changes to the BIOS. Each time you start your computer, you will need to run ThrottleStop. You can have a look in the BIOS that you are using now. Look for the IccMax setting. This needs to be set to the max, 255.75. This setting might be broken so even if you set IccMax to the max in the BIOS, it might not set the CPU IccMax register correctly to 255.75. When set to only 1.00, it is throttle city.

 

You will also have to look in the BIOS to see why the turbo ratios are not being set correctly. The default values are displayed in the ThrottleStop FIVR window. You will need to manually enter the default turbo ratio values into the BIOS. Updating to the latest BIOS version should fix both of these problems so you no longer have to use ThrottleStop. 

 

I would increase the PL1 power limit to at least 150. Run Cinebench and see how hot your CPU gets. If you do not like the maximum temperature, you can lower the long term PL1 power limit. Any temperature under 100°C is safe but some users do not feel comfortable running their CPU at sky high temperatures. The CPU is designed by Intel to automatically throttle and slow down if it gets too hot. This keeps the CPU at a safe temperature no matter how high you set PL1. 

 

https://www.techspot.com/downloads/7579-cinebench-r23.html

 

Edit - Here is the IccMax setting in my Asus Z490 BIOS. 

 

 

The latest BIOS version for an Asus Z390-F Gaming motherboard is version 2102 and is available here:

 

https://rog.asus.com/motherboards/rog-strix/rog-strix-z390-f-gaming-model/helpdesk_bios/

 

It is best to copy the BIOS to a USB stick. I use EZ Flash to update the BIOS while in the BIOS. 

 

 

Hey thanks a lot
I have now updated the bios and also set the IccMax in the bios so that the speed is normal when I start the Pc without opening Throttlestop.

But now I wonder why the CPU runs normally limited to 3.60GHz and when I use Throttlestop it goes up to 4.60GHz and what would I have to do to make it run at 4.60GHz by default?

I have changed the following settings in the bios so far as you can see in the photos

[unclewebb]

4 hours ago, Almdudler said:

runs normally limited to 3.60GHz

There must still be a bug. It looks like the Core Ratios entered into the BIOS are not being written correctly to the CPU. 

 

Boot up and before running ThrottleStop, delete the ThrottleStop.INI configuration file. When this file is not found, ThrottleStop will read the turbo ratios that the CPU is set to. Your first FIVR screenshot looked like this.

 

 

The last four turbo ratios are being set to 36. That is wrong. The BIOS should be setting these to 47, 46, 46, 46. When set to 36, your CPU will be limited to 3.60 GHz. 

 

You can also reboot, do not run ThrottleStop, and run HWiNFO to see what the turbo ratios are set to. 

 

You either have to tell Asus to fix their buggy BIOS or you will have to always use ThrottleStop so you can run your CPU at its full Intel rated speed. 

 

Edit - One more thing. When the C States are disabled in the BIOS, Intel Turbo Boost will not work correctly. The CPU will be limited to whatever turbo ratio the 8 Cores is set to. The last value in the Ratios column of the FIVR window. That is set to 36 in your screenshot so the CPU will always be limited to 3.60 GHz whether lightly loaded or fully loaded.