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Solution for Intel CPU Stability Issues: Lower Temps & Better Performance

zzetta
New Contributor II
1,589 Views

Hi everyone,

I've been working on resolving stability problems with Intel CPUs(mine is a 14700kf) and wanted to share my findings. Initially, I discovered that raising the IA AC loadline helped, but it resulted in significantly higher temperatures. To address this, I explored alternative settings and found a more effective solution.

### My Findings:

1. **Temperature Reduction**: By adjusting the settings, I managed to lower the CPU temperatures by 10-15°C compared to my initial approach.

2. **Improved Performance**: Applications and games are running smoother, with noticeable performance improvements.

### Key Changes I Made:

1. **Set CPU Vcore Loadline to Turbo**: This adjustment was crucial, because it has less vdroop. It mirrors the configuration I used successfully on the old Z390 platform with my i9-9900K, which was the default case for those old chips. Vcore loadlines were not this droopy on default.

2. **Adjust IA AC and IA DC Loadline to 1**: Setting both IA AC and IA DC loadlines to 1 allows starting from the baseline voltage values defined in the VID table. Note that "1" is the value for Gigabyte boards. On other motherboards, like Asus, the equivalent setting would be "0.01".

- **Default Vcore Loadline**: The default Vcore loadline is quite droopy. This droop causes instability, especially in specific scenarios such as launching certain applications. For me, the initial launch of PUBG was particularly problematic.

- **Voltage Reduction on Low Loads**: With the new approach, the voltage during low loads like gaming has been reduced significantly. Previously, the voltage would sit at around 1.5 volts with the default loadline during gaming sessions. Now, it stays at a much lower 1.33 volts.

### Conclusion:

By setting the IA AC and IA DC loadlines to 1 and adjusting the Vcore loadline to Turbo, I achieved lower temperatures and improved performance. These changes stabilized the CPU and eliminated the instability issues I faced with certain apps. Additionally, I tested my findings extensively, running the CPU at maximum usage, with power limits fully unlocked, and at 100°C non-stop for hundreds of hours. There were no signs of CPU degradation, confirming that the issue was not related to the CPUs degrading.

 

**Intel needs to reconsider their default Vcore loadline configuration to reduce the droopiness. Make it similar to the old platforms, like Z390. Doing so would mitigate issues with stability and temperatures across their CPUs!!**

 

I hope these findings help others facing similar stability issues. 

6 Replies
ACarmona_Intel
Moderator
1,398 Views

Hello Zzetta,


Thank you for posting in our communities and for sharing your findings regarding the issue with 13th and 14th generation processors.


We sincerely appreciate it, and we hope that other users will find your post helpful.


We will now close this enquiry since your post does not require assistance but provides knowledgeable information that might be helpful for other users experiencing 13th and 14th generation issues. Therefore, for additional information, please submit a new question, as this thread will no longer be monitored.


By the way, your suggestions were highly noted.


Bye for now, and have a great day ahead!


Best regards,

Carmona A.

Intel Customer Support Technician


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AlanRiplay
Beginner
777 Views
First of all, thanks for your awesome work and extensive testing, zzetta! This is really remarkable.

May I ask one question that I hope you can help me with: How can I research the equivalent of the IA AC/IA DC loadline 1 for my MSI MAG Tomahawk Max WiFi Z790?

Thank you so much in advance for your help and have a nice weekend!

Alan
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zzetta
New Contributor II
716 Views

Hello. 
I tried searching on the internet the equivalent and it seems that it is 1 on the msi too. 

I have found this image on a forum for a Z690 msi board, and the ac/dc loadline settings are located in this menu: RFVziR3
As for the Vcore loadline, it seems that Mode 3 should be the equivalent for ''Turbo' on the gigabyte. You voltage with the Loadline should only have a little bit of DROOP. It souldn't overshoot.

This image explains it:
1698031891848.png

You want to Pick MODE 3 for that little Vdroop coupled with AC/DC set at 1. Please report back.

AlanRiplay
Beginner
529 Views
Thanks mate, you‘re awesome. I will check, which values are set in my BIOS asap and report back. Have a great Sunday evening!
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NYC_Fanboy
Beginner
611 Views

Where do we find Vcore loadline on Asus boards?

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zzetta
New Contributor II
610 Views

If I remember correctly, on my old Z390 it was located under the Extreme tweaker -> DIGI+ VRM menu, and it was something like CPU loadline Calibration. BTW I have no idea what option you should select for the new Asus boards to match the Turbo Vcore loadline. I guess it should be the third one from the top. If there are 8 options you should select the fifth, but you should see what is the actual equivalent. And for the IA AC/DC loadline if you can't find them you can just set the SVID Behavior to "Best Case Scenario".

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