Asking for help with fan curve for Ryzen 7 7800X3D

[Muffin.]

Hello,

 

I just built a new pc and instantly noticed that the temps are different than for my previous CPU - Ryzen 5 5600X. For the 7 7800X3D there are some temp spikes even with simple tasks, but after googling, that seems to be normal for these ones. Also using and AIO for this CPU now, which is my first ever experience with an AIO (it's DeepCool LS720).

 

• So, the question is, how should I set the fan curve, what temperature source should I use for it and should I mess with AIO RPMs? Maybe I already made the curve okay-ish?

 

 

to my understanding, this is the current pump speed (from HWMonitor).

Also, maybe worth to mention - I got 5 intake fans and 4 exhaust (radiator fans are also exhaust, if that matters here).

• This is the current fan curve that I made:

 

• These are the available temps to choose from:

 

[emosun]

if it's hitting 80c then have the fans at 100%.

otherwise you have nothing set to 100% until it's already running overly hot

[PDifolco]

20 minutes ago, Muffin. said:

Hello,

 

I just built a new pc and instantly noticed that the temps are different than for my previous CPU - Ryzen 5 5600X. For the 7 7800X3D there are some temp spikes even with simple tasks, but after googling, that seems to be normal for these ones. Also using and AIO for this CPU now, which is my first ever experience with an AIO (it's DeepCool LS720).

 

• So, the question is, how should I set the fan curve, what temperature source should I use for it and should I mess with AIO RPMs? Maybe I already made the curve okay-ish?

 

 

to my understanding, this is the current pump speed (from HWMonitor).

Also, maybe worth to mention - I got 5 intake fans and 4 exhaust (radiator fans are also exhaust, if that matters here).

• This is the current fan curve that I made:

 

• These are the available temps to choose from:

 

What max temps do you have ?

With an all core -20 CO undervolt you shouldn't touch 75C, then can put your fans at a constant low 30% rpm or so and call it a day

 

[GuiltySpark_]

32 minutes ago, Muffin. said:

DeepCool LS720

Its an AIO, so the fans are there to cool the water, not the CPU. The water changes temperature MUCH slower than the CPU so your "curve" can be more or less a flat line until say 85C. Heck I do this with my tuned 7800x3D on an air cooler. Flat 40% PWM until 85c then jumps to 60% PWM. 

 

The worst thing in the world is the sound of fans ramping up and down in realtime to match the CPU temperature when there is no need. 

[RevGAM]

The best sensors to use would be the 2 in the CPU unless you can verify the reliability of the mobo sensors. 

[Muffin.]

Thank you all. Will just run it more or less flat 35-40 and rap up when much higher temps.