What other features does SpeedFan offer besides controlling fan speed? Once installed, SpeedFan will automatically detect if your hardware is compatible and advanced features are presented. SpeedFan is able to control the fan speed of most fan makes and models, but this will ultimately depend on your motherboard's sensor chip and capabilities.
Can SpeedFan control the fan speed of any fan? They were pretty good about using the best methods for cross compatability.SpeedFan is a hardware monitor software that can access temperature sensors, but its main feature is that it can control fan speeds - depending on the capabilities of your sensor chip and your hardware - according to the temperatures inside your PC, thus reducing noise and power consumption. Either fan can be voltage controlled, a PWM fan though has additional capability to be PWM controlled. A 4pin fan can also be put on a 3 pin header, and the voltage and rpm will still be correct. A 3 pin fan connection lines up on the 4 pin header just fine, and provided the voltage and rpm readings. Some fans and cooler items come with an array of connections, for connecting more than one way. In most of the chassis connections you can also use a 4pin pwm fan, it just is not likely to be needed/expected like it is for the cpu fan items. So in the case of most of these cpu fans, you really prefer and many good coolers come with a 4pin connection and a real pwm operational fan. They will still work with a PWM 4pin fan or a 3pin fan, either will be in a voltage control mode (not actual PWM).
Because good pwm 4 pin fans even with quality parts are inexpencive, and because it will work the way it is, there is no problem using what you have, then upgrading it with a 4pin actual PWM fan when needed/desired.Ĭhassis (case not cpu) fan headers come in 3& 4 pin, but many (most but not all) of the motherboards do not use actual PWM for these "other" connections, so control of them does not "require" a 4 pin PWM fan because they will be voltage controlled anyway.
It is true that a 4pin actual PWM connection running PWM (because sometimes you can switch in the MB bios/uefi to voltage control) will not fully control a 3Pin fan which has no PWM capability connected, YES. Because the method of control is via PWM, the feed voltage is the same, so a 3pin fan will run at full speed. Generally speaking todays motherboards have 2 of the PWM headers for the CPU and any secondary cpu fan item (cpu-opt), these 2 connections are best used with PWM actual fans with 4 pin connections.
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