Board fan headers

>>62133840
yes but you will only be able to control them from the header, not individually. Got it?

>>62133291
>>62134209
Also if you connect two non-identical four-pin fans to one header, the one that has the tachometer wire running to the mobo is the one the board will see, know about, and make fan-control decisions based on. 4-pin splitters are missing one wire in one of the two sides of the split for this reason. So say the mobo wants Fan 1 at 1000 RPM and sets the PWM wire to whatever it takes to get Fan 1 to turn at that speed. Fan 2 will see the same PWM signal, and will spin at whatever duty cycle it has for that setting. Which might be louder or quieter (or have more or less airflow) than Fan 1.

You'll need to plan for that when thinking about your airflow and fan-control settings. The easiest thing to do is just use identical or similar fans on each half of the splitter.