How to use the output heat of a PC to calculate how many Watts it consumes?

Question

Iron

I don't have a wattmeter, but you can measure electricity consumption using temperature sensors in a PC. I think it's possible to calculate the consumption in Watt by knowing the fan speed, CPU and video card power (primary consumers).

Answer 1

I think it's possible to calculate the consumption in Watt by knowing the initial fan speeds, CPU and video card power (primary consumers).

No.
Well, maybe within plus or minus a kilowatt.

Answer 2

if you do not rummage then do not be wiser.
but just buy a multimeter and measure the current at the power input of your laptop. Multiply by the voltage in the calculator - you get the power.

Answer 3

The heat generated by the processor and vidyuhi can be read directly from the vidyuhi or from the processor, without calculations. The rest of the components don't consume that much to make a big difference.

Answer 4

It is a bad idea. Look. Let's say you measure the temperature and air flow from the fan.
So. Let's say our vidyakha plows like a damned one at all 170 watts. But then, you turn off the game (or render) that loaded the video and it almost doesn't work at all. Those. The GPU is not powered, it is only for cooling (5-10 watts). But the air flow does not decrease for some time and the temperature too. And you think it all. So it is with the CPU of other devices. The heat generated by them is not constant and changes with a strong delay before and after. Moreover, it depends on the external environment. Well, some electronic components may not emit heat at all (a lot of heat).
The algorithm will be so complicated and inaccurate that it's not worth it.
It is much more efficient to use, for example, a wattmeter. It costs around 1k.
PS. why, writing "watt" in Russian does not allow religion? This looks extremely disingenuous.

Answer 5

You all have a perfect wattmeter hanging in the hallway. Electric meter. Replace its readings with the PC turned on for a time interval and replace it with it turned off. Next - school arithmetic.