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

[zzetta]

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. 

[NYC_Fanboy]

I have also tried this but the only thing that happens is that P-Cores don’t go past 5,3 GHz, E-Cores max 4,2 GHz.

Lower temps yes but way too little performance.

[Najam]

I tried every single thing but i have came to a state that the pc dosent even stay for min now it crashes blue screen i tried changing ia ac and dc to 0.09 and 1.00 and dont lnow whatever ppl suggested my cpu is 14900k and mobo is asus maximums z690 formula bios is updated but i tried for 10 hours right now i just came to my bed with frustration tiredness and a kind of depressed mood bec it has been months now and i have submitted a ticket for RMA that maybe its already damaged by the time i realized i need to do changes in bios bec i never touched it in my whole life i am always on default so now should i wait for monday to contact intel for rma or can u help me with the ia ac and dc any specific no just to try one. Last time ? As my professional life is with pc and for rma if they take weeks i cant afford that it already costed me alot now