CPU runs very hot

[BojPet]

Hi there guys!

I've recently got an RTX 3090FE, an MSI x570 Gaming Pro Carbon, 32GB of 14cl 3600MHz RAM and a 850W Platinum PSU.

My CPU, a Ryzen 9 5900X ist running very hot. I start up the computer and the CPU is at 70°C. It goes down to 50°C in "idle" but still goes very high in some situations. I've set the BIOS Fan curve for the CPU to Max out with 100% fan speed at 75°C.

The Noctua NHD-15 was not able to keep the CPU under 88°C so i bought an Arctic Liquid Freezer II 360 after thinking the Noctua one must be faulty. I reapplied the thermal paste 4 Times on the Noctua so it shouldn't be that. So far i with the Arctic Freezer II i have noticed the CPU going up to 84°C for a longer (around 20 Seconds) period of time while gaming very light games and downloading games via Steam in the Background. I actually wanted to keep the temps below 80°C though. I have tried several things to optimise airflow in my Fractal Define R6, like opening it up where it goes and mounted the radiator on top as an exhaust.

 

I have also noticed, that (no overclocking on any component by the way) the CPU does stay at around 76°C when put in an all-core stress situation like a benchmark. Even single-thread only operations run okay at around 79°C Max.

 

But in more everyday scenarios like unpacking ZIPs or downloading games via Steam or Gaming, when the CPU boosts up the clocks on 2-6 Cores is where it gets super hot (still seen 86°C with the arctic even though i really didn't try so far).

I have also had a look at the core clocks, which fluctuate heavily (i guess that's normal) (Core-Temp and GPU-Z) but reach a max of 4.4 to 4.5 GHz on all cores at 100% and the advertised 4.8 on 1 and two-cores at 100% load.
So the speeds look very good but is it really just not possible to cool this CPU at stock speeds down to an acceptable level (to me, not the manufacturer ;P) with conventional means?

And if you guys think these are perfectly normal temperatures, doesn't the fact that the temps go way above 75°C ,which i have set as 100% fan speed, mean that the cooling capacity is insufficient?

I really am not a pro so thank you guys so much in advance!

[Fasauceome]

You haven't listed any case info so I hope your system has good airflow. No matter how good your CPU cooler is, the temps will suffer if it's choked for fresh air

[LIGISTX]

5 minutes ago, BojPet said:

Hi there guys!

I've recently got an RTX 3090FE, an MSI x570 Gaming Pro Carbon, 32GB of 14cl 3600MHz RAM and a 850W Platinum PSU.

My CPU, a Ryzen 9 5900X ist running very hot. I start up the computer and the CPU is at 70°C. It goes down to 50°C in "idle" but still goes very high in some situations. I've set the BIOS Fan curve for the CPU to Max out with 100% fan speed at 75°C.

The Noctua NHD-15 was not able to keep the CPU under 88°C so i bought an Arctic Liquid Freezer II 360 after thinking the Noctua one must be faulty. I reapplied the thermal paste 4 Times on the Noctua so it shouldn't be that. So far i with the Arctic Freezer II i have noticed the CPU going up to 84°C for a longer (around 20 Seconds) period of time while gaming very light games and downloading games via Steam in the Background. I actually wanted to keep the temps below 80°C though. I have tried several things to optimise airflow in my Fractal Define R6, like opening it up where it goes and mounted the radiator on top as an exhaust.

 

I have also noticed, that (no overclocking on any component by the way) the CPU does stay at around 76°C when put in an all-core stress situation like a benchmark. Even single-thread only operations run okay at around 79°C Max.

 

But in more everyday scenarios like unpacking ZIPs or downloading games via Steam or Gaming, when the CPU boosts up the clocks on 2-6 Cores is where it gets super hot (still seen 86°C with the arctic even though i really didn't try so far).

I have also had a look at the core clocks, which fluctuate heavily (i guess that's normal) (Core-Temp and GPU-Z) but reach a max of 4.4 to 4.5 GHz on all cores at 100% and the advertised 4.8 on 1 and two-cores at 100% load.
So the speeds look very good but is it really just not possible to cool this CPU at stock speeds down to an acceptable level (to me, not the manufacturer ;P) with conventional means?

And if you guys think these are perfectly normal temperatures, doesn't the fact that the temps go way above 75°C ,which i have set as 100% fan speed, mean that the cooling capacity is insufficient?

I really am not a pro so thank you guys so much in advance!

Update your BIOS? That helps Ryzen more often then it should…

 

Are you reading hotspot temps? I think Ryzen reports those, right? Maybe not, I have not personally used Zen CPU’s yet

[BojPet]

10 minutes ago, Fasauceome said:

You haven't listed any case info so I hope your system has good airflow. No matter how good your CPU cooler is, the temps will suffer if it's choked for fresh air

It's actually in that wall of text ;D

It's a Fractal Define R6

[BojPet]

8 minutes ago, LIGISTX said:

Update your BIOS? That helps Ryzen more often then it should…

 

Are you reading hotspot temps? I think Ryzen reports those, right? Maybe not, I have not personally used Zen CPU’s yet

Whatever CPU-Z, RIVA and Core-Temp are reading is the same. No idea what they are.

I think my BIOS is up-to-date. That's what MSI Live Update tells me anyways.

[BojPet]

15 minutes ago, Fasauceome said:

You haven't listed any case info so I hope your system has good airflow. No matter how good your CPU cooler is, the temps will suffer if it's choked for fresh air

Also, i took a quick picture!

[CryingWimp]

New CPUs run a lot hotter than old ones. If your all core load has lower temps than when your lightly doing stuff something weird is happening that needs to be sorted out. 84c is normal for Zen3, the fact its happening while being lightly loaded and your load temps are actually lower is odd.

 

You appear to be properly boosting, all core loads 4.4GHz is normal.

When using your 3090, your exhausting hot GPU air out through the CPU cooler, so expect higher CPU temps.

 

What are your peak voltages?

IMO reset your BIOS to default. So we can narrow down the issue.

[BojPet]

1 minute ago, CryingWimp said:

New CPUs run a lot hotter than old ones. If your all core load has lower temps than when your lightly doing stuff something weird is happening that needs to be sorted out.

 

You appear to be properly boosting, all core loads 4.4GHz is normal.

When using your 3090, your exhausting hot GPU air out through the CPU cooler.

 

IMO reset your BIOS to default.

Did that like 20 time already. CMOS cleared and all.

I feel like the CPU goes to- boom 4.8 when it sees ANYTHING that windows throws at it and then gets hot immediately. I still have the 14-days return window but i have no idea what part is the problem.

[CryingWimp]

3 minutes ago, BojPet said:

I feel like the CPU goes to- boom 4.8 when it sees ANYTHING that windows throws at it and then gets hot immediately. I still have the 14-days return window but i have no idea what part is the problem.

That is normal, all modern CPUs do this to make them more responsive. Anything under 95c is within spec, most people stay under 90c for a bit extra room for safety.

 

Your boosting to 4.4GHz and only hitting 76c in what benchmark?

[BojPet]

Just now, CryingWimp said:

That is normal, all modern CPUs do this to make them more responsive.

 

Your boosting to 4.4GHz and only hitting 76c in what benchmark?

FurMark, Cinebench, CPU-Z Stress Test

[CryingWimp]

Your scores are appropriate compared to others?

 

What is your peak voltage?

[BojPet]

7 minutes ago, CryingWimp said:

Your scores are appropriate compared to others?

 

What is your peak voltage?

Actually, i just had a look at cinebench and before i started up cinebench, the temps were at 76°C while downloading steam games. I ran the Multi-Core Test and temps immediately dropped by like 5°C to 70-71. All cores at 4.2-4.3GHz.

The scores seem alright, i cannot really find any useful average numbers, some people online have way higher, some way lower numbers than me. But these people also claim it never goes over 70° for them with things like a DH-12 ;(

As for voltage i have seen like 1.45V in CPU-Z but have no actual peak measurement.

[CryingWimp]

Those are normal voltages and frequencies. 88c can be expected if your using your GPU, that is adding another 350+ watts of heat inside your case.

 

If your download speed is fast enough you could actually use a lot of CPU power to decompress all the data and keep up. Linus was showing a 5950x barely able to keep up with their 10Gbit connection 

 

Your loaded temps should be higher than light loads, hmm.

[BojPet]

Just now, CryingWimp said:

Those are normal voltages and frequencies. 88c can be expected if your using your GPU, that is adding another 350+ watts of heat inside your case.

 

If your download speed is fast enough you could actually use a lot of CPU power to keep up.

You might be on to something. I have 1gig down (1Gbit/s) and yep the 3090's blastin away.

I still found these temps to be pretty high considering my fan curve. I guess the CPU doesn't throttle at that point yet, does it?

[CryingWimp]

95c is throttle for Zen3, anything under that is considered "normal" by AMD. Most people aim to be under 90c.

 

Without your GPU running and steam downloads, your real "low use" temps should be lower than when running cinebench.

 

If your peaking at 88c with the GPU running, that's expected. If your AIO fits in the the front as intake that will be better, you won't be pulling GPU heat through it.

[BojPet]

3 minutes ago, CryingWimp said:

95c is throttle for Zen3, anything under that is considered "normal" by AMD. Most people aim to be under 90c

Ay! Those expected temps have risen in the last few years then.

I am still angrily staring at that core temp whenever it hits 80°C though o.O

I guess i'll install even more fans im the case.

GPU-Temps are way below 70°C at all times btw.

[CryingWimp]

Test with everything off, nothing running on the GPU etc, and actually test "light loads" and see your temps. If they are still higher than cinebench temps, something is still weird. I expect it was your DL speed and GPU usage though.

 

Pulling 350watts through the GPU and downloading on a 1Gb connection isn't really "light loads"

[BojPet]

Just now, CryingWimp said:

Stop doing everything, nothing on the GPU etc, and actually test "light loads" and see your temps. If they are still higher than cinebench temps, something is still weird.

Well "actual" light loads like browsing or word have the CPU at 55°C which is a good bit below the 70° it bounces aroung at cinebench.

[IkeaGnome]

1 minute ago, BojPet said:

Ay! Those expected temps have risen in the last few years then.

I am still angrily staring at that core temp whenever it hits 80°C though o.O

I guess i'll install even more fans im the case.

They sure have. Here's what my 5800x used to do in CP2077. Not throttling here.

Spoiler

 

1 minute ago, BojPet said:

Well "actual" light loads like browsing or word have the CPU at 55°C which is a good bit below the 70° it bounces aroung at cinebench.

The GPU pumping warm air into the AIO isn't helping, but if your temps are higher than you like, you could look into a negative PBO curve. 

[CryingWimp]

A 280MM front AIO might actually be better than exhausting your GPU though your 360. That is a giant hassle to change that though, considering your under 90c already. If your AIO fits in the front, that would be better for your CPU.

 

2 minutes ago, IkeaGnome said:

 you could look into a negative PBO curve. 

I agree, a negative PBO curve is amazing, you'll have lower temps and faster speed. win win. The negative curve lowers the voltage at any given frequency, this drops temps at any frequency and allows it to clock higher at stock power limits.

[BojPet]

1 minute ago, CryingWimp said:

A 280MM front AIO might actually be better than exhausting your GPU though your 360. That is a giant hassle to change that though, considering your under 90c already.

 

If your AIO fits in the front, that would be better for your CPU.

It does and i really love that case. I might look into putting it at the front after i do some gaming and check the temps.

[BojPet]

2 minutes ago, IkeaGnome said:

They sure have. Here's what my 5800x used to do in CP2077. Not throttling here.

That looks hella-hot. My GPU has never reached 70°C even.

 

2 minutes ago, IkeaGnome said:

The GPU pumping warm air into the AIO isn't helping, but if your temps are higher than you like, you could look into a negative PBO curve. 

I have no idea what PBO is nor what making that negative would look like sorry

[CryingWimp]

100% swap your AIO to front intake. That is the ideal setup, your CPU won't affect your GPU as much, but the GPU will really impact the CPU when exhausting 350 extra watts though the radiator trying to cool your CPU and GPU at the same time 

[IkeaGnome]

Just now, BojPet said:

That looks hella-hot. My GPU has never reached 70°C even.

 

I have no idea what PBO is nor what making that negative would look like sorry

Give this post a read.

First spoiler. First video is how PBO works. Second video is a really good explanation on how to do it. Even just the first video will make AMD's heat make a lot more sense to you.

Essentially, if your CPU hasn't hit thermal throttle, and you can throw more voltage at your chip it will just go until it gets too hot. That means you can turn the voltage down, create less heat and most of us have gained clock speeds.

[IkeaGnome]

Just now, CryingWimp said:

100% swap your AIO to front intake. That is the ideal setup, your CPU won't affect your GPU as much, but the GPU will really impact the CPU when exhausting 350 extra watts though the radiator trying to cool your CPU and GPU at the same time 

Doesn't look like that will fit in his case. Looks like front AIO is stuck at 240 or 280mm max and they've got a 360mm