Cpu running under base speed

[Jaay]

My cpu has suddenly dropped to 1.2 ghz speed showing in task manager, bios and xtu. I have tried changing intelpmm start balue to fix it but no luck. My power plan is set to performance and I have An Alienware Area 51 R5

 

The cpu is an intel core i7-9800x @ 3.80Ghz

 

Someone please help I have tried everything.

[unclewebb]

@Jaay In the registry, set the intelppm Start value back to 3 or whatever it was originally set to.

 

In the Power Options, press the Restore plan defaults button.

 

 

Exit Intel XTU and try running ThrottleStop instead. Avoid running both of these programs at the same time. 

https://www.techpowerup.com/download/techpowerup-throttlestop/

 

Clear the BD PROCHOT box on the main window if that is checked. Make sure that SpeedStep is checked. 

 

 

Post some ThrottleStop screenshots. Include the main window, the FIVR, TPL and Limit Reasons windows. 

 

Lots of Dell Alienware computers have throttling problems. Post some more info and we should be able to get this figured out. 

[Jaay]

@unclewebb the limit reasons box was black and I am not really sure how to operate the program so tell me if I need different screenshots.

 

 

 

 

[unclewebb]

@Jaay Try checking the Set Multiplier box and increase the value from 12 to 45. Run something simple like the built in TS Bench to load your CPU. Set it to a 1 Thread test. Post a screenshot of ThrottleStop while your CPU is loaded running this test. 

[Jaay]

@unclewebb When set multiplier is on it says my gpu is running 4 ghz so that might be the fix but here is the screenshot

 

 

 

 

 

[Analog]

So you basically want the processor to be running at max frequency all the time? Enable the Ultimate Performance power plan. You can do this by running the following command in CMD as admin:  powercfg -duplicatescheme e9a42b02-d5df-448d-aa00-03f14749eb61 and then enabling the plan in the Power Options. 

[unclewebb]

@Jaay Did you try pressing the Restore plan defaults button in the Power Options window?

 

For some strange reason, the BIOS or Windows is setting the CPU multiplier request register to the minimum value, 12. This is what is causing your CPU to run so slow. The Set Multiplier option in ThrottleStop writes directly to this register so it overrides what the BIOS or Windows has set this register to. Did you do a Windows or BIOS update recently?

 

You can try the trick that @Analog suggested to create a Windows Ultimate Performance option. In theory you should not have to use ThrottleStop but at least you have that option if you cannot figure out what is really going on. 

 

Press the C6 button on the main ThrottleStop screen to open up the C states window. When the C states are disabled in the BIOS, this will limit this CPU to the 41 multiplier when running a single threaded task. When the C states are enabled, the 9800X can use the 45 multiplier so it will run at 4500 MHz when lightly loaded instead of 4100 MHz. 

 

What do you want to do with your CPU? Run it at completely default settings? You can also overclock it in the FIVR window. You could adjust the turbo ratios so that this CPU will use the 45 multiplier whether 1, 2, ... or all 8 cores are active. It appears that the default Dell settings for the turbo ratios are not the same as the Intel default settings for a 9900X. Let me know if you need any help.

[Jaay]

17 minutes ago, Analog said:

So you basically want the processor to be running at max frequency all the time? Enable the Ultimate Performance power plan. You can do this by running the following command in CMD as admin:  powercfg -duplicatescheme e9a42b02-d5df-448d-aa00-03f14749eb61 and then enabling the plan in the Power Options. 

I have already done that and it didnt work for some reason.

[Analog]

13 hours ago, Jaay said:

I have already done that and it didnt work for some reason.

 

Are you running the DELL image of Windows?