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post #61 of 71 (permalink) Old 07-31-2020, 04:45 PM
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Quote: Originally Posted by tobiazl View Post
Hm. Cooling system? With undervolting?
No undervolting or CPU tweaking, factory BIOS defaults.

Cooler is a 3 year old Corsair H110i GT that I migrated from my previous Ryzen 1700x build.

Pump and fan profile set to silent with two Noctua NF-A14 Industrial PWM fans.

Radiator fans idle at desktop at around 900rpm and under gaming max out at 1050rpm.

Average temp of 30.5c while posting this... and as low as 24.9c.
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post #62 of 71 (permalink) Old 08-08-2020, 09:15 AM
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Quote: Originally Posted by tobiazl View Post
Good Morning,
so now I use the new case with two front fan and one in the upper side, I also added the fuma 2. My idle
temperatures are way better:

Idle

beetween 32° and 39°

Geekbench
max 80° only a short moment while HDR Test

Stresstest with stress 2min full power
81°
I´m not sure whether the thermal paste is perfect applied, because it was very difficult to apply the
cooler body in a straight way. Anyway are the temperatures way better.

I´m thinking about a fine tune anyway but as overclock noob I´m asking me there. Virtualization ist to

much performance (geekbench minus 10%).
Glad to see you got it sorted. Airflow is like waterflow....has to be a way in and a way out.

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post #63 of 71 (permalink) Old 08-08-2020, 11:12 PM
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Quote: Originally Posted by matthew87 View Post
My 3800X idles around 30-35c, gaming peak is 60c....

Cooled with a Corsair H110i GT with 2 Noctua AF-A14 Industrial fans at 900RPM in silent mode....

I have no idea what some people are doing to get 8 core Ryzen 3000 series chips idling at 50c and thinking this is 'normal'.

Have a 3800XT that runs on 50+C on idle, doing nothing at all.

So YES, the new XT series is designed to run as hot as any 10th Gen Model with 8 cores. Also my model never actually idles, it's always permanently stuck at running 3900 speed 24/7.
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post #64 of 71 (permalink) Old 08-09-2020, 12:49 AM
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Quote: Originally Posted by Elrick View Post
Have a 3800XT that runs on 50+C on idle, doing nothing at all.

So YES, the new XT series is designed to run as hot as any 10th Gen Model with 8 cores. Also my model never actually idles, it's always permanently stuck at running 3900 speed 24/7.
I appreciate you're having issues with temps and your 3800 XT failing to downclock or lower voltages, but that does not prove that it's power management systems are behaving as designed by AMD.

We all know how great Gigabyte's X570 motherboard BIOSs are.....


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post #65 of 71 (permalink) Old 08-09-2020, 12:56 AM
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Quote: Originally Posted by matthew87 View Post
I appreciate you're having issues with temps and your 3800 XT failing to downclock or lower voltages, but that does not prove that it's power management systems are behaving as designed by AMD.

We all know how great Gigabyte's X570 motherboard BIOSs are.....
It doesn't matter what AMD designed because AMD doesn't make motherboards => you're stuck with the partners' boards and their weird behavior.

You people who are not seeing high idle temps on Zen 2 are a minority and you have to understand that. I suspect it's because of your AIOs which are capable of handling the boost & voltage spikes better than air coolers. Not that many people own AIOs though...

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post #66 of 71 (permalink) Old 08-09-2020, 01:08 AM
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Quote: Originally Posted by rares495 View Post
It doesn't matter what AMD designed because AMD doesn't make motherboards => you're stuck with the partners' boards and their weird behavior.

You people who are not seeing high idle temps on Zen 2 are a minority and you have to understand that. I suspect it's because of your AIOs which are capable of handling the boost & voltage spikes better than air coolers. Not that many people own AIOs though...
There's nothing special about my 3+ year old Corsair H110i GT , it has been carried over from my old Ryzen 1700X system.

It's not like its a high-end brand new 360mm rad AIO or custom loop, it's a 3+ year old mid range AIO. Any half decent air-cooler could more than match its performance, especially given it's pump and fan profile are set to silent.

As to whether or not my experience is atypical of Ryzen 3000 series owners, I honestly haven't come across that many comments or posts in relation to the 8 or less core chips having such high voltage or temp issues. I'm aware that the 12 core chips do run hotter, but I personally haven't heard much commentary about the lower core variants having such issues.


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post #67 of 71 (permalink) Old 08-09-2020, 03:22 AM
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Some info for making sense of this thread: AMD's zen2 chips have a huge amount of different temp sensors, and always report the hottest one. It's possible to get a hotter reading on 2 thread loads than all core loads during normal boost behavior if the cores are next to each other and create a hotspot. The cores are tiny, getting heat out of them is the biggest problem.. your mount and how thin the paste spread is can matter more than the size of your cooler in some cases. The normal behavior at idle for these chips will be core speed of close to the base clock and then unused cores are powered down (you can see what cores are turned off in ryzen master).

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post #68 of 71 (permalink) Old 08-09-2020, 05:00 AM
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Quote: Originally Posted by rares495 View Post
There is absolutely a way. That's what Ryzen 3000 does.
Can confirm, all my chips did that unless set in power saving mode, then they would somtimes drop below 45*C but that's all on a big 360mm AiO. The 3900X and 3700X with PBO would reach 90*C in heavy AVX(2) number crunching, even my TR can sometimes bounce off Tjmax.
Currently idling at 44-49*C with 30*C ambient, but that doesn't seem to matter a lot for idle temps.

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post #69 of 71 (permalink) Old 08-09-2020, 06:16 AM
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This is 100% in spec. Its hot as **** here rightnow and im sitting in the mid 50s.

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post #70 of 71 (permalink) Old 08-10-2020, 09:38 AM
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Quote: Originally Posted by Yuke View Post
This is 100% in spec. Its hot as **** here rightnow and im sitting in the mid 50s.
Lol.

Yeah if you have 50c ambient temps that might make a bit of difference.

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