Question Package running 20 degrees hotter than cores

DuaneWhitney

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Sep 27, 2009
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I have a 9950x with a MSI Carbon motherboard, and nzxt 360 water cooler. at idle, all cores are around 30 degrees. The cooler displays temps around 55 to 60, and HW monitor shows the package at that temperature. But all cores are running 30 to 35 under light load. When I first built the system, the cooler displayed 30 degrees on idle. now it's around 45 or so.

Is this an airlflow issue? or possibly I need to re-do the thermal paste? or is it something else?

Thanks!

Duane.
 
I have a 9950x with a MSI Carbon motherboard, and nzxt 360 water cooler. at idle, all cores are around 30 degrees. The cooler displays temps around 55 to 60, and HW monitor shows the package at that temperature. But all cores are running 30 to 35 under light load. When I first built the system, the cooler displayed 30 degrees on idle. now it's around 45 or so.

Is this an airlflow issue? or possibly I need to re-do the thermal paste? or is it something else?

Thanks!

Duane.
It's normal for package temps to be significantly higher than cores, there's much more to CPU than just cores, memory controller, PCIe, even USB, caches, IGPU etc. All of it produces heat.
Your idle and low usage also changed with time. don't go by estimating them, that's pretty subjective, check CPU usage, frequency and power it's using at that time of measurement.