[SOLVED] hd120 vs sp120

[AlexTheFern]

whats the difference?

The corsair carbide omega has two hd120 fans, but im wondering if i can put in the sp120 fans for half the price. Would they look different?

 

[faalin]

HD120
more LED
fan speed 800-1725
sound 30dBA
Static pressure 2.25 MM-H2O
fan airflow 54.4CFM

SP120
Less LED
speed 1400
sound 26dBA
static pressure 1.45 mm-H2O
fan airflow 52CFM

So if you dont care about a ton of LED, or slightly less air flow then go for the SP120

 

[sizzling]

Based on the figures above the HD’s have a much higher static pressure making them better for using on radiators or mounting to a cooler.

 

[AlexTheFern]

If i put them in the same case, where should i put the two hd ones

 

[Paperdoc]

Another VERY important difference. The SP 120 is an older model that is of the 3-pin design that REQUIRES the mobo header to use the older Voltage Control Mode (aka DC Mode) to control the speed. The HD 120 is the newer 4-pin PWM design that can work with that control system. But they really should be used with a header using the new PWM Mode for control. In general you should NOT try to mix those two fan designs on one circuit.

In most current mobos, each CHA_FAN or SYS_FAN header can be configured to use either of those two Modes, and you can set them up for the fans you attach. IF you have a mixture of the two types AND you have more than one case fan header to use, you can arrange so that all your 3-pin fans are connected to one header you configure to use Voltage Control Mode. NOTE in doing this that you can NOT use a FAN HUB to connect several 3-pin fans to a single header - for that you can use only a SPLITTER, and need to heed the current limit for the header. (If you need full details of that, post back here.) Then you arrange all your 4-pin fans on a DIFFERENT header and configure that one to use PWM Mode.

Another option IF you do need to have several fans of each type in one system, there is one Fan HUB that can do that, but you'll need details.