Fan help Tags: New Build Fan Motherboards Systems Last response: March 26, 2010 9:24 PM in Systems Share daman March 26, 2010 9:16:29 PM Hey guys i bought this fan today its a 120mm masscool fan it has a 3pin for the motherboard and a molex, what i want to know is do i plug both in or just one? its going in an antec300 in the back on the case More about : fan Alvin Smith March 26, 2010 9:24:10 PM either/or ... ... most PSUs have a "Fans Only Molex Leg" on the harness ... usually has black and yellow wires only ... ... Depends on if you want active fan control. = Alvin = m 0 l Can't find your answer ? Ask ! Publish Related resources SolvedCpu fan help Forum SolvedSilent cases performance fan arrangment. Fan controller nessesary? Asus h97-plus, 4790 cpu & 770 GTX. Please help a newbie! Forum SolvedCM EVO 212 CPU Fan Install Help Forum SolvedFan set up help Forum SolvedMy CPU stock fan is distractingly noisy can someone help? Forum SolvedOrdering a new fan help Forum SolvedNZXT Phantom 410 Fan Connector Help (weird pins i cannot figure out) Forum SolvedPlease help, fan problems Forum SolvedHelp with fan setup Forum SolvedLooking for help with a Noisy Fan Forum SolvedFan setup help Forum SolvedHelp with fan size Forum SolvedNeed help with corsair fan placement..... Forum Solved** Please help - Noisy Laptop Fan !! *** ThinkPad T520 Forum SolvedFan Splitter Help Forum SolvedNeed help - GTX 760 & FX-8350 // Noise, Fan-Speed & Temp. Forum SolvedCorsair H80i. CPU fan error with Red Light on pump. help me please. Forum SolvedTJ04-E ~ Case Fan Orientation Help! Forum SolvedPLEASE HELP. CORSAIR H100i 3 PIN FAN CONNECTOR? Forum SolvedNeed help with connecting chassis fan Forum More resources Read discussions in other Systems categories Homebuilt New Build Prebuilt Cases Power Supplies RAM CyberPower !