XPS 9550 i7 Skylake idle frequency

I noticed this problem in several threads on this forum, and being scattered around the different topics I think it makes it more difficult to solve it.
Also, since most of us are having very bad battery life with our 9550, I think that the problem is more common that people are aware of.

So here is to the thing, what is the frequency your laptops are running while idling?
My is 99% of the time idling at 1596 (multiplier 16x). Since the min multiplier is set to 8, the normal behavior would be to run at 8x100=800MHz, but for some reason this does not happen. I tried all power settings and it is the same (except at high power profile, where it runs 3GHz+). The only moment when it drops to 800MHz is the moment I disconnect the charger, then it drops to 800MHz, but one or to two seconds later it goes back to 1600.

I suspect that many people have this problem but are not aware of it and this is probably impacting a battery life significantly.

So finally, could you please share your idle frequencies and if you have any suggestions how to solve the problem you are more than welcome to share it

 

mine sits at 9x idle, drops to 8x for a second if I go onto battery.

 

It started to drop to 8x when I installed and ran park control https://bitsum.com/parkcontrol/

Core parking is active on power saver but not balanced profile after installing the reg tweak to show core parking.

 

Thanks for the tip!!!

 

Not sure if it really works. The readings of the taskmanager vs. parkcontrol differ. It might be a reading issue with either one of them.

E.g. taskmanager shows 900MHz and Parkcontrol reports 800MHz at the same time.

[Edit]
I have to admit that the reading of Parkcontrol makes more sense... Low load and the CPU sticks to 800 MHz, small bursts and the CPU ramps up accordingly.

[Edit2]
Not sure what it caused it. I am now down to 800MHz also in taskmanager. Instead of Parkcontrol, which is another tool that is not really needed, I am now using the provided registry file (scroll a bit down). https://bitsum.com/parkcontrol/

Thank you!

 

I am not sure which one is right...

I also tried Parkcontrol now and it is showing 800MHz at idle. At the same time task manager and CPUz are showing values oscillating around 1400-1700 (1600 most of the time)...

I have no idea what is wrong.

 

I used Aida64 to monitor speeds