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4pin molex fans? which fan to buy?

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  • Motherboards
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Last response: in Components
June 9, 2009 6:59:18 PM

Hello together, I've found a really good special offer, and wanted to ask if I should buy it. Usually I would inform myself but this offers seems not to last for a too long time and I have to do other stuff atm.

The product im talking about is a fan called Nanoxia Highflow FX+12 - 2000 PWM or the 1250 PWM version of the same fan.(

They both "use" a 4 pin molex connector and my first question is If many Am3/am2+ motherboard which aren't to expensive (f.e Gigabyte GA-MA790X-UD4) would support having two aditional 4 pin fans (+the fan from the Xigmatec S1283 + 2 fans from Antec 300).
I count 5 fans in total but the descriptions of the motherboard say's 4x Fan (I don't know if 3or 4 pin).

Is the fan of the Cpu included when saying 4x Fan or does it mean you cann install 4 additional fans (which I want)

my second question: which version should I buy one with 380–1.250 turns per minute or 600–2.000 I want to overclock and need good cooling but I don't know how many turns/minute make sense.

Does it make sence buying such fans or should I just buy simple 3 pin fans?

Thank you Erdinger

More about : 4pin molex fans fan buy

June 10, 2009 4:05:57 PM

no answers? are my questions unclear or what?

could you at least tell me if a motherboard with 4xfan supports 5 fans in total (including cpu fan) and if all motherboard have 4 pin conntectors?
June 10, 2009 6:42:53 PM

Ok i've looked at the pc i have right now and reckognized that only the cpu fan has 4 pins (no idea why) and that even with 3 pins I could adjust the speed of the other fan... (Bios it's more silent now ^^)

Can someone please explain the difference between 3 and 4 pin and which I should buy as chassis fans and why?

Kind regards Erdinger
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June 10, 2009 7:59:38 PM


Go here and download the manual for the GA-MA790X-UD4P MoBo, see page 7 for Mobo layout:

The CPU fan connects to the motherboard...there are 3 Case fan connections on your MoBo, Power fan, Systems_fan 1 & System fan_2...these are used to control & monitor the fans speed. As far as I know you can put 2 or more fans together on 1 Molex connecting cable to your PSU. Hope this helps my tech knowlege is limited.
June 11, 2009 3:11:57 PM

thanks a lot that helps