MSI Current/EDP limit throttling at idle - 13600K

[jabmen]

HI all.
So, I Have a 13600K paired with a MSI PRO B760-P WIFI DDR4, 16Gb Ram. Default values, with PL1 125W - PL2 181W - To me is enough and I'm totally fine with that.
I decided to install Intel Extreme utility just to check by curious. And I've already noticed that Current/EDP limit throttling is blinking Yes / No many times. Which means, that something is not totally right on settings.
I've researched online, and even checked Intel's Forum, and more users has the same problem and question, although with no solutions. Intel's told everyone to contact the motherboard manufacturer for further information's to solve the issue, they don't even explain what Current/EDP limit throttling is.

On Intel XTU, my CPU is on 0 - 1% usage, although the Current/EDP limit throttling keeps blinking ( around every 2 seconds), warning that is throttling.
My CPU Temps are fine, No Power Limit/Thermal/Motherboard VR throttling.

And I'm assuming that the B760-P has adequate and more than enough VRMs to support this CPU. Mostly because I don't put the CPU that hard, barely went above 50% CPU usage.
I really hope the motherboard isn't the cause of this.

Can anyone explain me what Current/EDP limit throttling truly is? And how to solve this issue and stops the throttling?

 

[doug.hogart153b02d9]

I cannot help except to say that it seems like same "PL4" flag issue recently mentioned for a Z790 board here which points to another thread showing it seemed to start occurring on the most recent couple processor generations which allowed IccMax greater than 256A. I think some thought there might be software issue such as the monitoring programs but others thought it might be the AMI BIOS common to MSI and Gigabyte motherboards. I am not experienced enough to know whether for this situation it is not really throttling and therefore should be ignored, but I know it seems very common now (including my recent systems not under stress).

 

[citay]

I think it's more or less normal on Intel. I get "RING: Max VR Voltage, ICCmax, PL4" Yes/Yes/Yes on my PC in HWinfo64.
Board is MAG Z690 TOMAHAWK WIFI DDR4. It has been like this with any BIOS version i used.

If you look here at the following posts, it's noted that the current limit (referred to as ICCmax) is working with internal peak current within the CPU, which, when measured hundreds or thousands of times per second, can reach the limit and cause throttling to prevent overcurrent. Especially workloads that include AVX instructions (such as CB23) will cause such a throttling.

Reason being, the ICCmax is also set when you select Boxed Cooler, and it's often set at a conservative value. See here on the cooler selection prompt, which is really the prompt on how to set the power limits for the CPU:

So in this case, it would be 154W for PL2, with ICCmax of 175A. You can see that with the CPU going above 1V, it's not too hard to reach 175A first sometimes, instead of the 154W. The same goes for higher limits, like in your case it's probably 181W PL2, 200A ICCmax.

They should've made "Tower Cooler" be a good middle ground, it is set way too high, most air coolers can never get rid of that much heat. As it is now, it's almost like maxed out limits, just a little less. So if you go by the three cooler = power limit presets, you can only decide between "Intel defaults" and "too much for a lot of coolers", that's why i always help people to find the best power limits for their specific cooling.

Even with maxed out limits you can still get ICCmax throttling, but it shouldn't influence anything, you will get performance completely in line with that CPU model. I think it's just a very sensitive detection for overcurrent in the millisecond range.