Solved HP Chassis 3 pin fan and Asus 4 pin motherboard? Tags: Asus Hewlett Packard Fan Motherboards Components Last response: December 24, 2013 1:26 PM in Components Share Willy156 December 24, 2013 8:30:35 AM Hi all, I have an Hp p7 1245. The chassis fan is 3 pins. My new motherboard installed inside is 4 pins. Is it safe to put my chassis's 3 pin fan to my ASUS's 4 pin motherboard? More about : chassis pin fan asus pin motherboard Best solution P1nnacle a b Ĉ ASUS a b V Motherboard December 24, 2013 8:34:19 AM Yes, it is safe to use your fans on the board. The 4th pin is used to change the speed of the fan, it's not necessary for the fan to run. Share ahnilated a b V Motherboard December 24, 2013 8:36:42 AM If you look at the 4 pin fan header on the motherboard you will see that it also accepts 3 pin fans. This will work fine for your system. m 0 l Related resources 3pin to motherboard 4 pin chassis fans - Forum asus z87 chassis fan 4th pin is +5v - Forum 3-pin fan connectors Motherboard got 1 chassis fan connector 3 pin - Forum Asus x58 4-pin chassis fan - Forum ASUS A88X-PLUS has two 4-pin fan connectors, but my two fan connectors have 3 pins - Forum Can't find your answer ? Ask ! Get the answer photonboy a b Ĉ ASUS a b α HP a c 154 V Motherboard December 24, 2013 9:30:24 AM Yes, your fan will spin. Also, some fans can be controlled by the motherboard. This requires three things: 1) Variable fan 2) Motherboard fan control supports the fan (in this case the fan is Voltage) 3) Fan control software I suspect your case fan is non-variable but if it's not then you MAY be able to control it via the motherboard fan control software (which you should already use for your CPU). Optionally you can REPLACE the fan with a variable one if desired, in which case I recommend something like a 500RPM to 1800RPM (variable), PWM, 12cm fan if that would fit. m 0 l Willy156 December 24, 2013 11:12:30 AM hi all, I installed the chasis fan and when I start up my computer, the screen said "Windows system repair (recommended)" And now my screen is performing system repair. Could my chasis fan be incompatible? m 0 l Willy156 December 24, 2013 11:18:24 AM Hmmm after waiting for 5 minutes the computer is running perfectly fine now. Weird how I went into System Repair after connecting my old chassis's fan to my new motherboard o-o m 0 l Willy156 December 24, 2013 12:05:57 PM By the way, is my fan being automatically put on 100% speed? My chassis fan is considerably louder now. m 0 l P1nnacle a b Ĉ ASUS a b V Motherboard December 24, 2013 12:43:43 PM Willy156 said:By the way, is my fan being automatically put on 100% speed? My chassis fan is considerably louder now. It will run at the same speed as it did in your last case, unless you had a fan controller. m 0 l Willy156 December 24, 2013 1:26:10 PM I did not have a fan controller and my old motherboard had 3 pins instead of 4 pins. My new motherboard is currently using my old chassis fan and is louder m 0 l Can't find your answer ? Ask ! Publish Related resources Solved4-pin Fan To 3-pin Header On Motherboard? Forum SolvedCan a 3 pin fan work using a 4 pin header on a motherboard. Forum Solved4pin fan on motherboard with 3pin fan Forum Solved4 pin CPU fan into chassis header Forum Solved4 pin chassis fan control Forum Solvedcan you use a 3 pin fan on a 4 pin PWM fan header on motherboard Forum 3 pin header beside CPU Fan header on Asus B85 Vanguard Motherboard Forum SolvedHello, im trying to plug in 3 pin case fans to 4 pin fan motherboard Forum Solved3 pin cpu fan speed control with 4 pin motherboard Forum 4pin Case Fan not working on 3pin motherboard!!! Forum SolvedMy motherboard has 4-pin, but case fan is 3-pin? Forum Z87-wifi motherboard 3 pin cpu fan connector onto a 4 pin header Forum 3-pin 3-speed Noctua NF-S12B FLX fan, 4-pin motherboard headers... Speed control? Forum Solvedi have 3 pin male case fans and 4 pin male motherboard Forum SolvedAll case fans have 3 pin connection ,but my motherboard has 4pins, what to do? Forum More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !