The difference in core temperatures widens because heat accumulates and the system becomes less stable over time.
The difference in core temperatures widens because heat accumulates and the system becomes less stable over time.
After several repastings with the same setup, I've observed a growing temperature gap between CPU cores. Initially, within seconds of repasting, the difference was around 4-5°C. Over time, especially during gameplay or Prime95 runs, it rose to about 10°C. This change only occurs under load, not at idle or with light usage. It seems the issue is related to how the paste was applied—using pea-sized amounts and spreading evenly—but others might experience similar problems.
It would be useful to understand if the hotter central region becomes warmer or the cooler inner area gets cooler as the difference widens. Also, could you clarify which cooler model you're referring to?
Also, I don’t feel too concerned about the temperature changes so far. The real issue is... why does it keep getting worse over time? What might be behind that trend?
Timing is important for the cure process. After several weeks, there should be no further changes (except when the paste needs replacing).
I believe the thermal paste needs time to penetrate the cracks and gaps in the IHS and cooler base. This should enhance cooling performance. If higher-temperature cores had become hotter, then the cooler might have sagged slightly, pulling it further from the top, which could worsen cooling. It's just a theory. There could be many other factors involved. Also, having the specifications would be helpful.
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