Hi,
my current power supply is a "LC Power Green something 550W" with a 140mm fan. While that sounded great on paper (140mm should be silent, eh?!) ... it's not. It's already quite notable in idle, shortly after system starts and it stays at that noise level. Which means it's obviously one of those power supplies that never get really loud, but are always at the same noise level, no matter how the power output.
I've installed it in my NZXT H2 case with the fan pointing to the case bottom, where it takes in cold air and pushes it out to the back of the case. Which means the airflow is not interacting with the case at all. The air coming out at the back is almost "freezing cold" at all times (idle/load). which is good, ofc. But also indicates that the fan is doing way more than it needs to do.
Anyway, since it's by far the loudest component left in the case, I want to replace the fan with another one.
The question(s) coming up is/are the following:
1.) Should I solder the new fan onto the cables of the old one or is it possible to run the new fan via a 3/4 pin connecter from the power supply like a case fan?
>>> I have no problem with soldering, however, I think that way the power supply will try to regulate the speed of the new fan, which is not exactly what I'd prefer it to do. I intend to use a high airflow low RPM fan running at max RPM all the time (e.g. Enermax T.B. Silence 750 RPM, 77 m³/h) or if that is not enough (is it?!?) a max 154 m³/h fan regulated by a fan controller.
2.) Is there a way to slow down the actual fan to run at lower RPM? Maybe add a regulator like some case fans (e.g. T.B.Silence-Manual) have.
note:
I have not opened the power supply yet, so I don't know yet how many pins/wires the old fan is using, which might be of interest for the soldering solution (PWM?!? or maybe not, not sure).
Also note that the max load of my PC is <200W, which is quite a bit less than half the capacity of the power supply.
PS: I know about the capacitors discharging risk and all, I know about warranty being gone, etc. so please don't tell me about that.
my current power supply is a "LC Power Green something 550W" with a 140mm fan. While that sounded great on paper (140mm should be silent, eh?!) ... it's not. It's already quite notable in idle, shortly after system starts and it stays at that noise level. Which means it's obviously one of those power supplies that never get really loud, but are always at the same noise level, no matter how the power output.
I've installed it in my NZXT H2 case with the fan pointing to the case bottom, where it takes in cold air and pushes it out to the back of the case. Which means the airflow is not interacting with the case at all. The air coming out at the back is almost "freezing cold" at all times (idle/load). which is good, ofc. But also indicates that the fan is doing way more than it needs to do.
Anyway, since it's by far the loudest component left in the case, I want to replace the fan with another one.
The question(s) coming up is/are the following:
1.) Should I solder the new fan onto the cables of the old one or is it possible to run the new fan via a 3/4 pin connecter from the power supply like a case fan?
>>> I have no problem with soldering, however, I think that way the power supply will try to regulate the speed of the new fan, which is not exactly what I'd prefer it to do. I intend to use a high airflow low RPM fan running at max RPM all the time (e.g. Enermax T.B. Silence 750 RPM, 77 m³/h) or if that is not enough (is it?!?) a max 154 m³/h fan regulated by a fan controller.
2.) Is there a way to slow down the actual fan to run at lower RPM? Maybe add a regulator like some case fans (e.g. T.B.Silence-Manual) have.
note:
I have not opened the power supply yet, so I don't know yet how many pins/wires the old fan is using, which might be of interest for the soldering solution (PWM?!? or maybe not, not sure).
Also note that the max load of my PC is <200W, which is quite a bit less than half the capacity of the power supply.
PS: I know about the capacitors discharging risk and all, I know about warranty being gone, etc. so please don't tell me about that.