11800H stuck in C2, can't access higher C-states

Hello, maybe I'm reading the interface wrong, but I seem to be unable to access deeper cstates on my system (Eluktronics MAX-15 i7-11800H) and as a result I'm seeing very high idle Core VID and power usage.

HWiNFO64 does show c7 residency, and the Core C States table in TS shows 90%+ in C7, but the package C States table is always 0 in every category except C2 (this is where I'm unsure of how to interpret the GUI readings).

I have read a bit about AHCI Drivers etc preventing core parking, but I'm not sure which drivers I should be looking at if I need that kind of a solution. Maybe it's a BIOS issue?

I did un-hide some processor power state management options in the windows power profile through the registry, but changing those values doesn't seem to have had any effect. I've included a screenshot of my TS window while my system is at idle (task manager shows system idle at 99%, there's not much going on in this system, very clean setup.)

Thanks for any help or tips on reducing idle voltage/power consumption.

 

Why isn't this in the ThrottleStop thread?

 

Because this isn't related to throttlestop? I included a screenshot of it's c state readouts to be helpful. I could have just as easily included a screenshot of XTU voltage graphs or HWiNFO64 graphs. I can cross post it if that would please you. Of course, if you have any input on the topic rather than the post location, that'd be even more helpful.

 

In the past when I have had similar C-state issues and the idle wattage went up, I reset CMOS and BIOS to Factory Defaults and the cores began parking normally again. I then made all my BIOS edits again and the problem never reappeared. Firmware bug maybe?

I use ParkControl software to force the PC to act right, along with ThrottleStop of course.

 

Thanks, I'll check out ParkControl. I reset the BIOS using the CMOS and it actually resulted in resetting my factory undervolt from Eluktronics, and now I have to have them flash the BIOS over teamviewer to restore it. In the meantime I've been using XTU to undervolt but it's not ideal. They told me that soon they'll be releasing a new Tiger Lake specific BIOS revision after the holiday rush that should have a lot more unlocked features. For now, it's pretty sparse. My old GS63 has a much more robust BIOS.

 

Are you connected to an external display? If so, disconnect it.

 

Hey, saw you in the other thread and replied there. Btw, I did try running with no display plugged in and it made no difference, which rules that out.