Intel Core i5 13400 does not reach maximum frequency
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Hello, I have been looking for help as I recently built my PC with an i5 13400 processor and an MSI MAG B760M MORTAR WIFI motherboard. The processor, with Intel Turbo Boost enabled, is supposed to run at a frequency of 4.6Ghz, which it has never reached, not even after doing all kinds of stress tests. I also noticed that the multiplier is set to 41 (it has a range of 40 to 46) which I have not been able to change. I don't know if anyone can help me with this.
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@Kzeta Hello! The multiplier is dynamic depending on the workload applied to the CPU. Turbo Boost sets that maximum of 46x (4.6Ghz).
Have you tried keeping CPU-Z open and running a CPU test? That's when you should see the multiplier go up and work at the maximum frequency, although that will also depend on the number of cores working. In CPU-Z, if I'm not mistaken, you only see core #0, so it's better to monitor it with another program, for example the Core Temp.You'll let us know

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I think the same as krampak. You pass a bench and with coretemp you see the frequency. And since I am obsolete, I will say something silly, but can't you disable turbo boost and do the overcloocking as it has always been done? In my two servers, of course I have it disabled, because it is another type of architecture and function, but those processors and those motherboards should let you do it. But since I don't know, I'll let it drop. hehehehhe.
Regards. -
Have they checked the temperatures? If it's above 75 degrees, it doesn't go any higher. -
Normally, in Intel processors, the maximum turbo boost is applied to a single core. If you do a mononúcleo benchmark, you will surely see it working at maximum turbo boost. In multinúcleo, the frequencies decrease because otherwise the TDP would skyrocket. It is also true that, since the 12th generation, they do not work as limited in frequencies but in temperature. Thermal throttling lowers temperatures. This can also be seen in the 7th generation of Ryzen...