Question Ryzen 5800X3D spiking and throttling ?

[Luke_122]

Long story, short my aio started playing up so i moved to an old fan cooler. I recently upgraded to the thermalright Peral Assassin . When the pc boots it revs all the fans and the pc temps clock over 70 then settles. When i open an exe it spikes to 60, idle is around 38-45 as we now amd cpu like to jump around. Updated the bios and that hasnt really done anything, With my old aio i was idling at 25-32.Before the pump went after it was idling at 40.
The mobo is b450 gaming pro
Ive got the fan curve pretty low as i like it to be quite, but when the cpu spikes these go crazy.
One example is when i have a youtube video running and the just push the mouse around it goes from 40- 60 like a zo zo.
in all my time of having pcs never had this problem

Any help would be grand!

 

[Cyberat_88]

Quiet + Fan "cooler" = High Heat.
Want a cool system, max. fan 100% at 65C. Fans are rated by CFMs it can move, not "quiet".
Better advice for any Gaming system - use Liquid Cooling. Buy a better brand like Corsair.
Have an H100i for longer than 5yrs. no problem.

 

[SorryBella]

Want a cool system, max. fan 100% at 65C. Fans are rated by CFMs it can move, not "quiet".

Yeah you either play full performance or have to hit a compromise to avoid exactly this. Quiet system is a balancing act, not just turning every dial down.

And as for AIO, I don't have much to say but yeah it is quieter when you are going for that same shotgun approach.

Also if you can adjust it in software, try to move your temperature hysteresis around to see if it helps.

 

[Phaaze88]

Spiking is normal, though Ryzen got more and more aggressive with after 2000. The 3D chip is going to spike more easily too due to the extra Z-height created by the 3D cache.
Air coolers don't have as much liquid in them vs AIOs, so they heat up faster, but they also cool down faster, thus the 'crazy fans' situation being reported.

Sounds like your fans' curves are just set too low with the Peerless Assassin. You were brute forcing it with the AIO - and it clearly worked - but the (assumed) extra low fan curves aren't working well with the Assassin. All the fans need to pull their weight now.


The thread title also mentions throttling, but there's none reported in the post.

TL;DR: You need to play around with your fans' curves more.