Operation b.p. in conditions of constantly low load, nothing will happen to him?

Question

Iron

We all know that if you connect more power than that for which the power supply is designed, then it will not end well and perhaps even something will fail.
But what happens if a good, suitable power supply (for example, Corsair HX750i) at 750 watts is operated under conditions of constantly reduced load (that is, do not load it at all 750 watts, but say only at 400)? Is there any danger to the power supply in connection with such operation?
Can any other power supply fail because of this?

Answer 1

Nothing will happen to him. 750 is the maximum allowable load, not the nominal one. You need 400 watts, the unit will produce 400 watts. Only one caveat - at a low load, the efficiency of the unit is less, but this is quite insignificant.

Answer 2

Not certainly in that way.
Switching power supplies are usually characterized not only by the maximum load, but also by the minimum. If you run it completely without load, or with a load in the form of, say, an LED, then it may not start. And if it starts, it can give out high voltages or large ripples. But 400 W for a 750 W PSU is quite a workload.
In general, such questions usually arise when a PSU from a computer is used as a laboratory PSU. To do this, for example, I hang a 10W and 5 Ohm ceramic powerful resistor on the 5V line and physically attach it behind the fan grille. So the PSU always has a constant load and the resistor is blown. And you can take its voltage for your needs.

Answer 3

The question is more from the field of physics. I doubt that anyone will give a sensible answer. You need to be well versed in many areas. in terms of practice. then no! =)

Answer 4

less is not more, usually BP is taken with a margin and it works but it
will work fine