Question Ryzen 9 9950x Idle High Temp

[rydeon95]

hello everyone, I am aware that this is not a problem and that it is completely safe. But I wanted your opinion. I have a liquid cooling with Mo-Ra 420, the CPU load temperatures are perfect, but I can't understand why the idle temperatures are so "high" Both IOD Hotspot and CPU tdie are around 43/44 degrees without doing anything at all, I have no processes in the background. the liquid temperature is around 25 degrees.

I tried to lower the Vsoc and maybe I gained 1 degree, but I'm not satisfied, I would like to have the CPU under 40 degrees in idle.

I emphasize that it is my obsession, I am absolutely aware that this is not a problem, but if you have advice on how to lower the idle temperature as much as possible I would be grateful.

In the bios the CPU temperature is 32/33 degrees, there is a 10 degree difference

 

[MangoX]

Those are really good idle temps. I have four 7950x systems with 360AIO and none idles lower than 50C, and I have them on ECO mode as well. I think it's pretty normal to have a 20C delta over ambient.

 

[rydeon95]

Those are really good idle temps. I have four 7950x systems with 360AIO and none idles lower than 50C, and I have them on ECO mode as well. I think it's pretty normal to have a 20C delta over ambient.

For me they are very annoying, as I said in my post, I know it is not a problem, but there should be a way to lower the temperatures as much as possible, also because in the bios the temperatures are much lower, I suspect that windows does not work well

 

[Tech Junky]

Intel idles lower but, has a higher power consumption under load. AMD always will idle higher.

You can chase lower temps bit, it will adjust itself up in performance and thus temp will go up again. I'm running a 7900X with a dual fan cooler, contact frame and graphite pad. Thus on Intel would be in the 30's but, AMD sits in the mid to high 40's usually.

It's a trade off for performance and efficiency. The fans or cooler would be running anyway with either one.

 

[rydeon95]

Intel idles lower but, has a higher power consumption under load. AMD always will idle higher.

You can chase lower temps bit, it will adjust itself up in performance and thus temp will go up again. I'm running a 7900X with a dual fan cooler, contact frame and graphite pad. Thus on Intel would be in the 30's but, AMD sits in the mid to high 40's usually.

It's a trade off for performance and efficiency. The fans or cooler would be running anyway with either one.

So there is no way to lower the temperature in idle?
not even using another operating system, for example linux?
in bios the temperature is much lower, maybe windows is the problem?

 

[Tech Junky]

I'm using Linux. The only real option would be to gimp the performance in the bios which defeats the purpose of a higher end CPU. The bios temps are a bit misleading because there's absolute idle with no os running.

 

[BTRY B 529th FA BN]

Looks like something is set to performance mode in the bios. I would go over them again

 

[IEC]

Your idle temps are fine. It doesn't matter if your loop temperature is 25C, your hotspot temps will always be higher than that. Unless you are on a clean install of Windows with no internet connection, I doubt you are at 0% CPU usage anyways.

 

[In2Photos]

Do you have XMP/EXPO enabled? This causes an extra 8-10 watts of power consumption on my 7700. That's good enough for 5-8 degrees between the BIOS and in Windows.

I agree though while 45 degrees may not be what you're used to, that's just how it operates. You might be able to get below 40 if you delid the CPU and do direct die cooling but that's a pretty extreme thing to do.

 

[rydeon95]

Looks like something is set to performance mode in the bios. I would go over them again

What do you think could be in performance mode in bios?

 

[MangoX]

What do you think could be in performance mode in bios?

Most likely XMP/EXPO. Ryzens have high idle because of the IO die, and especially if you enable memory overclocking. Try turning that off and see if your idle temps drop a bit.

 

[rydeon95]

Most likely XMP/EXPO. Ryzens have high idle because of the IO die, and especially if you enable memory overclocking. Try turning that off and see if your idle temps drop a bit.

disabling expo, so with the stock ram I can remove about 1 degree on cpu package and iod hotspot, but I lose the ram at 6000 with the timings set manually, it's not worth it.
There must be a setting that greatly reduces the idle temperature.

 

[In2Photos]

disabling expo, so with the stock ram I can remove about 1 degree on cpu package and iod hotspot, but I lose the ram at 6000 with the timings set manually, it's not worth it.
There must be a setting that greatly reduces the idle temperature.

There's not! This is how the chip works!

 

[SteinFG]

I don't understand why you're acting like this with idle temp. The 2 main questions when sanity-checking the system don't include idle temp, but are:
- What temp is it running while under load.
- What wattage it consumes at idle.

Temps at idle are not indicative of any issue. AM5 IHS has high thermal resistance, that's just how it works. If you want to lower fan noise, just shift the fan curve.

I just don't understand the underlying problem you're trying to solve.

 

[alcoholbob]

So there is no way to lower the temperature in idle?
not even using another operating system, for example linux?
in bios the temperature is much lower, maybe windows is the problem?

Of course there is a way to lower the idle temperature. It's called de-lidding the CPU and putting liquid metal under the IHS. The AMD IHS is way thicker than Intel's, and their idle power consumption is higher because of their chiplet design, resulting in higher idle temps. The question is whether or not that's some thing you are comfortable doing, because there is no software solution. If you are, then go to der8auer's site where he sells most of these tools. Pretty simple.