A question: how hot is an Haswell cpu supposed to get?
Dear CPU experts,
I have a desktop box with an i5-4670K @3.4 GHz cpu, not overclocked, using the stock fan, and when I use all four cores, the thing gets quite hot: when building the linux kernel with make -j4, it quickly gets as hot as 78°C and then sits around that temperature (as reported by the coretemp kernel module) until the job is over. Are such temperatures expected for this kind of processor? I find them quite surprising.
(I've tried with prime95 too, but with that the CPU doesn't get much hot, as apparently it doesn't enter the "turbo" state @3.6 GHz.)
Sigh, the cursed thing is new, clean, is using Intel's own "thermal solution", and it's winter. And I haven't even installed a graphics card yet. I'm afraid that the situation will get worse when we have 40°C in the summer.
I'll see if I can disable "turbo boost" completely in the BIOS, as I don't really know what else I could do.