Cooling a Ryzen 9 3900X

[Father of Sofi]

Hi All,

 

Recently upgraded my desktop from an Intel 7 7700K to a Ryzen 9 3900X. I use the computer for a home business and picture and (future) movie editing, but I have kept the same cooling solution - a Hydro Series™ H105 240mm Extreme Performance Liquid CPU Cooler, but cooled by 2x 140mm fans pushing through the front of the case.

 

With that cooling solution the Ryzen 9 3900X's ideal temperature is around 55C or 20 above ambient. At load it quickly increases to 90C+, but also cools quickly if the load doesn't last too long, which suits my use.

 

I know I should probably invest in a better cooling solution, but would my temperatures be considered relatively normal cooling for a 3900X?

 

On the 3900X performance compared to the 7700K - its awesome! Not even comparable... Its plugged into a ASRock X570 Taichi and they are perfect partners!

[SavageNeo]

Disable CPB and PBO from bios. and keep voltages under 1.4V

[caldrin]

I should not really be hitting above 90 much.. maybe jsut a quick spike to it when the CPU spins up for heavy load but its very rare I see anything like that now not since the first few updates came out from AMD. Idle temps seem ok depending on exactly how idle the computer really is you might see it drop a bit lower.

Make sure you have the bios up to date and using the latest amd x570 drivers and either use AMD balanced power profile or try the 1susmus profile https://www.guru3d.com/files-details/1usmus-custom-power-plan-for-ryzen-3000-download.html

That AIO should be fine to cool that CPU. .well as long as it was working ok on your old cpu

[WereCat]

I am using Noctua NH-U12A and I top at around 87°C to 90°C on the most demanding load. 

Everything stock except infinity fabric and RAM which are 1800MHz.

 

The temperatures you're getting are kinda high for a water cooler. What's your case and where its mounted? 

 

Also maybe just try to remount the cooler and use more thermal compound if you used too little. 

[JoshHendi]

Also be sure to use the X-method, or a pre-applied thin layer, on the entire IHS when using thermal paste... Using the 'dot in the center' like you would for Intel chips isn't as effective since there are multiple dies

[Father of Sofi]

Hi All,

 

As already discussed, I use a Hydro Series™ H105 240mm Extreme Performance Liquid CPU Cooler, but cooled by 2x 140mm fans pushing through the front of a Fractal Design R6 case, usually with the front of the case open (free-flow of air) - the front provides the coolest freshest air. The filters are kept clean.

 

I'm not a pea-believer either. I spread a thin layer of Noctua NT-H1 over the whole IHS.

 

I'll keep the current set for now, but do need to update.

 

Thanks again. 

[Lord Tyrion]

Hey,

 

I reduced the CPU voltage offset by -0.100, switched to windows balanced power plan, no OC and using an EKWB 360 custom loop and am getting idle temps of low 30's, general use approx 40c and heavy gaming at 60c.