I have an AMD ryzen 7 5800x and was woundering if anyone has noticed any performance increase with the bios setting asus performance enhancement or APE enabled.
It seems like results vary and are minimal. My cpu runs maybe 2-3 degrees hotter with it on.
Anyone found it beneficial to the sim?
I know what its supposed to do, and i am mostly cpu limited in airliners and i think you will find most people are too.
With all due respect if you dont have APE funcunality or have not used it with the sim please refrain from commenting
Hello,
These questions are best suited for the PC & Hardware category. I moved your topic there.
Not sure why you’re giving him a hard time, he correctly addressed your answer. It increases the CPU power limits, allowing your CPU to draw more power than stock. While it may sound like a good idea, I would not enable it. The Ryzen 5000s don’t run well with more power and can actually cause performance to drop in some cases if increased too high. If you’re looking for an easy boost, I would suggest trying to manually increase the PBO Power Limits in the BIOS. Increase these limits until your benchmark scores, like Cinebench, start to drop. This will be your max limits.
I found that my best performance happened through PBO improvements and undervolting. I have a 5800x. I followed this playlist of videos which will walk you through the process. I saw the biggest benefit when tuning the “curve optimizer” which is actually an under-volting process. With all that said, it doesn’t make much of a difference in this game.
Well i think its justified becuase i did not ask for an explanation of what APE does to the CPU, and i did not ask for a guess on what it could maybe do for the sim performance.
All im asking for is feedback from other people with amd motherboards if APE has helped their performance in the sim.
Il try some different benchmarks, but from what i have seem in other games the results are minimal and i agree
Thanks il have a look at the videos.
It seems to me that overclocking the 5800x gives minimal increases in performance, and for me the most important factor is MSFS.
Do you use the PBO settings for all games or only MSFS? And are your temps noticably higher?
I also use curve optimizer and PBO power limits for all games. Raising the power limits is easy, and I’d suggest to to that route first. Undervolting with curve optimizer is time consuming and would only recommend it for advanced users, as it can cause BSOD if done too aggressively. Nevertheless, I’d highly recommend using a user tool called CoreCycler to help test for initial undervolting stability. It’ll test each core and tell you which one throws an error. The cores that throw an error need to be undervolted less.
It’s set this way for everything, all games and normal computer usage also. These are AMD tools and are designed to be used with their processors. The factory settings yield low performance. It is designed this way so that customers do not get errors from a shipping product. All their CPUs can run at these low settings but the majority of them can be run higher. These tools are designed so you can apply them to your specific CPU.
Regarding temperatures, my temps went down 5 degrees because of the undervolt. So it performs better and runs at lower temps. It’s all good. Under heavy stress testing my CPU was running at 75 with factory settings. Now I get better performance and run at 70 max.
I agree with this. But there’s a foolproof way to test your optimized settings. You must ensure your computer is 100% stable after playing with these settings. My suggestion is you download OCCT. It’s free and has a number of stress tests for all your components (CPU, RAM, GPU, and total system power). Can your computer pass 15 minutes of all of those tests? The program has temperature sensors to monitor the various temperatures.
After following those videos, I ran these stress tests and had to back off the undervolt I had made to get completely stable. I didn’t have to change any of the PBO settings. The “power” test was the most difficult one for me to pass.
Another good tool, but CoreCycler caught a few more errors that OCCT did in my case.
I didn’t know about that test. Thanks. I’ll look into it. But in general my computer isn’t “mission critical” so I don’t go the route of ensuring “24 hr” testing stability as some might. I’m always up for a good stress test though 
Understood. In my case, my undervolting appeared stable for a few months until I got a random WHEA on core 2. Decided to try CoreCyler to verify, and it found a few errors on a few cores. After some tweaking, I’ve been able to run it on all cores with no issues on multiple passes. It’s actually a custom Prime95 script someone wrote specifically for testing Zen undervolting. You can find it on GitHub.
