High CPU idle / full load temps

[Lemonadesq]

Hi everyone, it is going to be quite a long one to read, I'm sorry.

 

Yesterday I built a new PC and when it finally booted to BIOS I noticed something really weird, my CPU ( which is an Intel i9-12900ks ) was idling at around 47-48°C stock, no OC done to it at all. I am using an NZXT Kraken x73 top mounted in a Lian Li O11 dynamic. The cooler was installed with the pre applied paste it came with, after I installed the Windows I downloaded Cinebench and AIDA64 because I really wanted to see the load temps if the idle was 48° C ( it was an open case, all the fans were running but the panels were not mounted ). First I ran AIDA (cpu, fpu and cache) and it stopped after like 10 seconds because the CPU was thermal throttling ( above 96°C registered both in AIDA and HWInfo ) so I decided not to run cinebench and reinstall the cooler with new paste. I managed to get my CPU to idle at around 40-42°C ( temp registered in BIOS ). When I got to windows I started NZXT CAM which showed a temp of 37°C idle but it spiked to 50-60°C while loading apps like spotify, a few tabs on chrome or battlenet launcher. After running AIDA again only stressing the CPU, under full load it got to 72°C after 1 minute but when I tried to stress the cpu, fpu and cache after only 29 seconds the max temp registered was 89°C going to over 96°C after 35 seconds. I am 99% sure the AIO is mounted and tightened correctly. I even thought that the CPU is faulty but from my research it shouldn't overheat like that if it was the CPU.

 

In terms of gaming I only tried League of Legends and Overwatch and the CPU was hovering around 68°C the max being 82°C.

 

Something worth to mention is that on max speed the AIO pump is audible, I can hear it rattling. It's not really really loud but I thought it was worth mentioning. I tried to give you guys as much info as possible.

 

I would like to hear your opinions on this one as I am out of options on my side, I can try send it back and get a new one but first I would like to hear what you guys think I should do in this case.

 

 

[DennyManace]

since I do  not know your installation, I can only offer some educated guess:

1. does the CPU runs something else in the  background while it's supposedly idle ?
2. in-adequate thermal paste,  do you spread the  paste  to on  the  processor TIM evenly ?
3. have you screw the CPU cooler mount (the pump) tightly ?
4. have you check the CPU cooling option in the BIOS ? The 12-series is designed to run at max thermal range to boost the CPU as high as possible. In the BIOS there are ways to address this. On MSI, as soon as I got into BIOS there was a popup where you selected cooling type. In doing so, it changes the power profiles to the CPU, thus reducing heat.
   
   https://hexus.net/tech/news/mainboard/146398-msi-intros-cpu-cooler-tuning-bios-feature-intel-mainboards/

[Lemonadesq]

7 minutes ago, DennyManace said:

since I do  not know your installation, I can only offer some educated guess:

1. does the CPU runs something else in the  background while it's supposedly idle ?
2. in-adequate thermal paste,  do you spread the  paste  to on  the  processor TIM evenly ?
3. have you screw the CPU cooler mount (the pump) tightly ?
4. have you check the CPU cooling option in the BIOS ? The 12-series is designed to run at max thermal range to boost the CPU as high as possible. In the BIOS there are ways to address this. On MSI, as soon as I got into BIOS there was a popup where you selected cooling type. In doing so, it changes the power profiles to the CPU, thus reducing heat.
   
   https://hexus.net/tech/news/mainboard/146398-msi-intros-cpu-cooler-tuning-bios-feature-intel-mainboards/

1. Well in BIOS it was as idle as it can get I guess but in windows, idles means hwinfo for monitoring and thats it.

2. First it ran on the pre applied paste now its running on arctic MX-4.

3. Im confident the cpu cooler is mounted correctly and it is tight.

4. I have not chaned anything in BIOS, it is running stock although I will have a look online to see how can I change that on my motherboard.

[DennyManace]

28 minutes ago, Lemonadesq said:

1. Well in BIOS it was as idle as it can get I guess but in windows, idles means hwinfo for monitoring and thats it.

2. First it ran on the pre applied paste now its running on arctic MX-4.

3. Im confident the cpu cooler is mounted correctly and it is tight.

4. I have not chaned anything in BIOS, it is running stock although I will have a look online to see how can I change that on my motherboard.

If the BIOS modification failed, I suggest to check the airflow inside your case. Wrong blower fan direction or not enough fans maybe ?
Also checking the CPU cooler since the pump and  its fans performance could degrade over time. If you have other coolers laying around.
You can also replace the Arctix MX-4 with other paste with higher thermal conductivity, such as Noctua, ThermalGrizzly Kryonoaut (although not as durable as MX4) or even liquid metals if  you want  something fancier.

I remember that GamerNexus uploaded a video highlighting a problem with Intel's socket mounting. They suggest to  replace the stock CPU bracket with an  aftermarket one. Maybe this will also help
 

 

[Lemonadesq]

4 minutes ago, DennyManace said:

If the BIOS modification failed, I suggest to check the airflow inside your case. Wrong blower fan direction or not enough fans maybe ?
Also checking the CPU cooler since the pump and  its fans performance could degrade over time. If you have other coolers laying around.
You can also replace the Arctix MX-4 with other paste with higher thermal conductivity, such as Noctua, ThermalGrizzly Kryonoaut (although not as durable as MX4) or even liquid metals if  you want  something fancier

The BIOS change barely helped, it's not noticeable and the CPU cooler is literally new, it's as fresh as they come. I run on ThermalGrizzly Kryonoaut right now. Attached there an image with the temps during and after 10 minutes of Cinebench and I am 4 degress away from tjmax so I know it's not the paste.

[DennyManace]

9 hours ago, Lemonadesq said:

The BIOS change barely helped, it's not noticeable and the CPU cooler is literally new, it's as fresh as they come. I run on ThermalGrizzly Kryonoaut right now. Attached there an image with the temps during and after 10 minutes of Cinebench and I am 4 degress away from tjmax so I know it's not the paste.

I  think this is definitely the issue that Gamer Nexus discussed,  As you can see  the temperature of the  CPU cores are not even. Some over heat (>95) and others just chilling around 90C or below). Maybe replacing the CPU bracket will help. This is an example of great Intel engineering at work.

[Ryuikko]

You're probably just gonna have to undervolt it and see where it gets you. 5.2 ghz all core will  definitely get toasty after a stress test, and probably some thermal throttling on cores. 

[thrasher_565]