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I had it on the TOP left SATA3_0
JeauxBleaux July 24, 2013 8:55:00 AM
Hey! Your motherboard has five 4-pin fan connectors. Two of them are for the CPU and three are for the case fans.
4-pin connectors offer the ability to control fan speed via pulse width modulation (PWM).
Since your case fans are only 3-pin, you will not have the ability to control the case fan speeds , the fans will simply run at full speed 24x7.
If you look carefully at your motherboard's 4-pin connectors, you will see a bar or marking that spans three of the four pins. These are the 3 pins you'll want to plug your 3-pin case fans into.
Of course, you could always upgrade the case fans to a 4-pin type so your system will potentially be quieter but the 3-pin case fans will plug right onto the the 4-pin connectors and work fine. Just be sure to use the 3 (of 4 pins) that show the "span". this information is on page 1-34 of your manual.