[SOLVED] New Ryzen 9 3900x throttle

[CoupleOfBalls]

Just recently purchased a new ryzen 9 3900x with a new x570 board; the Gigabyte Aorus ultra x570. At startup the fan goes full speed which i think is normal. But, at idle the temperature fluctuates going from 45c to 60c while idle. The fan also throttles when the temperature rises. Also, at idle the clock speeds stayts 4200mhz to 4500mhz at idle. I'd like to know if my cpu is bad or something that way i can start the return process.Youtube recording

 

[drivinfast247]

Those temps are about what's expected.

Included fan cooler is worthless for these large core number chips.

 

[CoupleOfBalls]

i understand but for it to fluctuate like that is normal? sometimes it even goes up to 70c on IDLE

 

[CerianK]

Dumb question, but could you repeat the video with only one change... close Chrome?

My laptop fan often stays on at nearly full speed due to high CPU/GPU utilization when the browser is open (usually to a specific site we are all familiar with), but it sometimes will go up and down a little.

 

[Phaaze88]

You're monitoring with CAM, and not Ryzen Master? Check again with RM.
Other applications inadvertently 'wake up' the normally dormant threads, making them behave as if a task was available.

 

[GarrettL]

To get the most out of a 3900x you will need an aftermarket cooler.

 

[CoupleOfBalls]

Just installed a nzxt kraken x63.. still doing the same thing. Temperatures are jumping from 38-52 sitting in windows

 

[Phaaze88]

Just installed a nzxt kraken x63.. still doing the same thing. Temperatures are jumping from 38-52 sitting in windows

That's normal for this cpu. You're too accustomed to the cpus of old, just like everyone else that inquired about the very bouncy activity.

 

[Pandemiya]

Just recently purchased a new ryzen 9 3900x with a new x570 board; the Gigabyte Aorus ultra x570. At startup the fan goes full speed which i think is normal. But, at idle the temperature fluctuates going from 45c to 60c while idle. The fan also throttles when the temperature rises. Also, at idle the clock speeds stayts 4200mhz to 4500mhz at idle. I'd like to know if my cpu is bad or something that way i can start the return process.Youtube recording

Hi,
I have had the Ryzen 3900X on my Crosshair VIII Hero WiFi record for a couple of weeks now, along with the NH-D15 Chromax cooling. At the beginning I didn't like the stock temperatures either.In the IDLE the temperatures were 39 to 44 degrees with jumps up to 47/48, in stress Cinebench R20 showed about 75 degrees. I didn't use the Prime95 or Aida64, but the temperatures there would probably be about 80 degrees. I looked for different solutions on the internet until I came across a reddit about o undervolting through negative offset and a topic about modifying the power plan in windows.

Using the advice from this topic View: https://www.reddit.com/r/Amd/comments/eng1y8/ryzen_3700x_high_iddle_temps_and_fan_speed/
I changed the AMD Ryzen High Performance plan to Custom, while in the bios I disabled both PBO options and set a negative offset for CPU voltages - 0.1 This resulted in a significant reduction in CPU temperatures in IDLE as well as under stress. Currently in the IDLE I have 35/36 degrees with jumps to 38/39 - usually when I have Chrome browser open, a few tabs, Steam and music player on I have 36-37 degrees. In the Cinebench R20, temperatures have dropped to 66/67 degrees, while the benchmark scores are still good, with no performance loss signals.

Overall I am very satisfied, the CPU is calmer and much cooler. If you want, try this method, I think it can have a positive effect. You may have to have a bigger or smaller offset, there may be different sweet spots for the processor. However, it is worth trying it