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Why do all the cores on my 3930K heat-up during gaming?

post #1 of 6
Thread Starter 
I thought games only use 2-4 cores.
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post #2 of 6
It still uses a single heat spreader. When one or more cores heat up, the heat goes to the spreader. As it is on top of every core, they all pick up a bit of heat too.
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post #3 of 6
Games are being updated to use multiple threads now like BF3 and NFSW plus a few others, i am surprised you haven't noticed this before.
Single threaded apps are a thing of the past near enough.
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post #4 of 6
even with one core active on the 3930k it will still have all six cores spike in temps when placed under load, no worrys so long as they all are in the safe zone
post #5 of 6
Quote:
Originally Posted by Sprkd1 View Post

I thought games only use 2-4 cores.

If you look closely, the load (e.g. 2 thread) is distributed on all cores. For example, at time_1, the load is on core 1 and 2, and at time_2, the load is on core 3 and 5. But at a given time, only two cores are working because there are only 2 threads.
Quote:
Originally Posted by RussianJ View Post

It still uses a single heat spreader. When one or more cores heat up, the heat goes to the spreader. As it is on top of every core, they all pick up a bit of heat too.

Heating the heatspreader that could only result in slowly rising temperature (aka CPU temp), but wouldn't give core temperature spikes.
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post #6 of 6
Other threads in Windows will pop up occasionally, like video and sound drivers, keyboard handling and so on. They will put some load on cores your game isn't using. Also some newer games are beginning to allow for more than 2 cores, they will farm some load out to other cores too.
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