Question Intel i9-13900k temperature spikes seem odd

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May 6, 2023
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Hey everyone, I just installed an 13900k on a MSI Z790-A cooled by an Corsair H115i Pro. I have been tracking temps while idle and while playing games. I've noticed everything seems as expected with sudden temp spikes of over 10C. I will be idling around 38C and then it spikes max to 49C. When gaming I'll be stable around 63C and it can shoot up to 80C. Could this be something related to the P-Cores (I have noticed they run hotter and are the main cores spiking) or possibly a poor application of thermal paste?

I also have the CPU overclocked to 5.8GHz so not sure if that matters or even if I need that on these with the how the power cores and efficiency cores work together.

While typing this out I had a spike from 38C to 57C with only Chrome open and Discord open.

If this is something known with these CPUs I'd love to have someone ease my mind or potential issues. I've had no overheating or shutoff issues so nothing I'd say causing major alarm.

Key components:
CPU: Intel i9-13900k (Overclocked to 5.8GHz)
Motherboard: MSI Z790-A Pro
Cooler: Corsair H115i RGB Pro
Thermal Paste: Corsair XTM50

The thermal paste was not the pad that is pre-applied on the cooler.

After running Cinebench, I was hitting 100C on many of the P-Cores while the E-Cores stayed around 85C.
 
Last edited:
May 4, 2023
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I would say that it is a reporting error that is making it seem as if temperatures are spiking. The reporting frequency for temperatures is not second-to-second. It might be every 5-7 seconds, for example. If that's the case then you might be getting temperature increases that are being cooled by your fan curve, or equivalent setting for your AIO. Then in the next 5-7 second reporting window it has cooled it back to its stable temperature. From your perspective it would seem as if its a spike but its just how the reporting frequency makes the data look.
 
I would not worry about temperature spikes. They happen very fast and may be of very short duration.

Most users will not overclock, but instead allow the native mechanism to turbo up individual cores as needed.
Normal operation attempts to maximize performance as much as the cooling and load environments permit.
You might find this article on i9-13700K performance interesting:
 
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