Can I limit Turbo Boost clock?

I have an 8750H that goes up to 3.9 GHz on all 6 cores during peak use.

Due to thermal reasons, I'd like to be able to limit Turbo Boost max clock without having to disable it completely. For example, I'd like to limit Turbo Boost to 3.0GHz on all 6 cores.

The laptop is a Dell G7 15 with 1060 Max-Q. I've checked BIOS and noticed there's an option to enable/disable Turbo Boost, but it doesn't seem to allow to set a maximum multiplier for the CPU.

Is that possible?

 

Throttlestop or XTU can set lower turbo multipliers

Throttlestop is the better option as you can switch between profiles with hot key combo

Also consider undervolting to reduce temps.

 

the HQ cpus don't have this anymore, you have the option of turbo or not turbo only

 

Thank you both for the fast replies.

I've undervolted both CPU Core and CPU Cache by -150.4V and it seems stable.

Temperatures seemed to drop significantly.

I haven't changed anything besides CPU Core, CPU Cache and Intel GPU voltages (reduced).

I've noticed that SpeedStep is enabled and Speed Shift - EPP is disabled, both by default. As you can see, SST is enabled, which confirms that Speed Shift is enabled in BIOS.

Speed Shift is enabled by default (greyed out button, so I can't disable it) in the TPL menu.

As for being able to limit Turbo Boost clock, isn't that "Turbo Ratio Limits" in FIVR menu supposed to do exactly what I want?

 

TS or XTU can limit the max multiplier on the 8750H no problem.

 

Can you post screenshoot of all ThrottleStop windows (settings)?

He can also lower performance with Package Power limits in TS TPL windows, Windows power settings as well. And Speed Shift - EPP should work on 8th gen processors.

Why not fix the undelying problem? RMA for refund or repaste/repad.

 

Would it also work if I simply change values of Turbo Ratio Limits in FIVR menu?

For example, changing 6 Cores Active from 39 to 34. Would it limit Turbo Boost in my CPU to 3,4GHz instead of 3,9GHz? (when all cores are active)?

 

I don't have the processor. But just put all cores to 34x, click apply and save. Run test afterwards. Maybe you have to change undervolt, but tests is needed first.

Edit. Only needed to put all 6 cores down to 34x. You can put higher values for the other core bins.

But you should really look on fixing the underlying problem. Returns for Refund is best because this gives a a proper signal to Dell.

 

Are you sure? Can you post an example showing how ThrottleStop is setup and showing that this is not working? It should be easy enough to lower the Turbo Ratio Limit multipliers in the FIVR window to control the maximum CPU speed. If Speed Shift is enabled, you should also be able to lower the Speed Shift Max value in the TPL window. Both of these methods are a great way to get some turbo boost without having to choose between full turbo or no turbo.

I built the TS Bench into ThrottleStop for a reason. Open the TS Bench first and then open the FIVR window. Use the TS Bench to load the CPU. While the TS Bench is running, you can make adjustments in the FIVR window, hit Apply and then watch what happens to the CPU speed on the main TS screen.

For a mild test without creating massive heat or power consumption, set the TS Bench to 1 Thread and set the size to 1024M so the test runs for a long time. Easy enough to Stop or Cancel this test at any time. In a matter of seconds your question will be answered. To simulate 6 active cores, do a 12 Thread test. During a 12 Thread test, never hurts to open up the ThrottleStop Limit Reasons window too so you can keep an eye on that. Open this and the TS Bench before opening the FIVR window. Multiplier reduction when fully loaded might be because the CPU is hitting the PL1 or PL2 turbo power limits. Testing at a lower multi helps avoid this problem.

 

Thank you for the replies, they helped me a lot.

 

Sry if i ask here instead of making antoher threads, but got a question about the same subject, same cpu.

If i understand well, the more Mhz on the cpu jump, the more heat will apply ?

At stock, when i open throttle stop for the 1st time, i got this value for the turbo ratio limits :

https://imgur.com/a/hRcU0Ak

If lowering the max speed helps too with the temps and i wanna lower a bit the clock the max clock speed, should i change it as this ? :

1core and 2 cores active 39 / 3 cores active and 4 core actives 38 / 5 cores and 6 cores active 37

Or should i put 39 to all ?

Another question, on the main board, do i have to clic, "mark on" set multiplier to match up with those settings ? Change the 41T to the max i put on core ?

 

I want to do the same. It works, but my Uncore Power Consumption rises to 0,6Watts instead of 0,1Watt when idling as soon as i start Throttlestop.

Is there an alternative way?