Hello All,

Recently I finished building this CPU with an ASUS Z790-A motherboard and I'd like to get the best BIOS/UEFI configuration for FS2020.

Is it possible to specify a fixed frequency for the cores? I have disabled Hyper-Threading.

Is it a good idea to disable some of the cores in order to achieve a higher frequency on the remaining ones?

Again, this PC is basically for FS2020, so the intention is to optimise things for this simulator.

Thanks in advance!

not sure about asus z790, but msi z790, go to advanced settings > oc settings > per core ratio limit > change to manual > change the cores to what you want to run them at... 54 for all cores if thats what you want to run at, or 53 all cores if you dont want to push them all. should be similar with asus. hope that helps 

Edited July 8, 2025Jul 8 by Fromage_Flippant

7 hours ago, Wanthuyr Filho said:

Is it possible to specify a fixed frequency for the cores? I have disabled Hyper-Threading.

 

The Intel XTU can do that for you without fiddling with the bios, works perfectly on my system.

https://www.intel.com/content/www/us/en/download/17881/intel-extreme-tuning-utility-intel-xtu.html

ASUS MB have a UEFI that monitors your PC Performance for the first few weeks, then in the box on the right it suggest the best possible OC based on your PC workload and cooling.

Thanks for the suggestions. It's interesting and strange at the same time because when I set a specific clock speed (say Sync All Cores for example) and it doesn't achieve that value, it will just reduce to a feasible value (even if I disable C-States and those Turbo settings. If I'm not mistaken in my i7 8700K if the system doesn't achieve the clock speed I've set it wouldn't even boot up. Any comments in this regard?

In any event, I think I've managed to find good settings for simulation using FS2020.

You may find it better to use variable boost settings instead of Sync all cores. This will allow cores to achieve the highest clocks possible on your cooling, I have mine capped at 5.3hz which helps more cores achieve this.

PS try YouTube you will find lots of videos on this from overclockers.

2 minutes ago, G-RFRY said:

You may find it better to use variable boost settings instead of Sync all cores. This will allow cores to achieve the highest clocks possible on your cooling, I have mine capped at 5.3hz which helps more cores achieve this.

PS try YouTube you will find lots of videos on this from overclockers.

I heard the bad thing about variable clock would be the introduction of delay or latency, which would translate into stutters in the simulation, but haven’t done any kind of comparison. 🫢

4 hours ago, Wanthuyr Filho said:

I heard the bad thing about variable clock would be the introduction of delay or latency, which would translate into stutters in the simulation, but haven’t done any kind of comparison. 🫢

In that case, the sim would be unusable on AMD processors, which clearly isn't the case.

Cheers

On 7/9/2025 at 12:34 AM, Wanthuyr Filho said:

I have disabled Hyper-Threading.

Why? I do not get why some still think that this results in any benefit. IF your CPU runs too hot using hyper-threading, either your cooling solution is rubbish or you simply overdone your overclocking. 

Basically because the simulators don't benefit from all those cores, even the remaining cores left after disabling HT are more than enough to run everything. Moreover it's possible to increase the clock speed and reduce heat by doing this. HT itself suffers from some degree of overhead, since the doubled number of cores is kind of artificial. I have tested myself with and without HT and could experience how smother is the simulation without HT. My PC is only for flight simulation, thus it won't hurt anything else.

https://www.flickr.com/photos/154944674@N05/51945980181/in/dateposted-public

I have a i10900 CPU 10cores no HT with custom case fan cooling allowing the CPU to boost above 5Gz. when in idle the power draw is minimal and one front 140mm fan stops as they are linked to the temp on a fan curve.

Cooling now the most important thing for building a PC. To get the best performance from your hardware.

https://www.guru3d.com/story/deepcool-case-has-built-in-aio-liquid-cooling/