multiple fans in a 3 pin plug

L

lukashi

n00b
Joined
Jun 5, 2005
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15
is it ok to plug multiple fans into that 3 pin cpu fan plug, because it is the only plug on my motherboard that changes voltage depending on speed which is usefull to make my computer quiet, so i want to plug maybe like 5 fans into the single plug (using those splitting cables)
Thanks Lukas
 
As long as you dont go over the power requirements of the plug you can put multiple fans on one header.. 5 fans however will almost certianly blow the fan header on the motherboard. The good ones are rated at 1A max. Most aren't.
 
Look up the apmerage rating of the fans. Or you can look up the wattage and use this formula.

I=P/E

Where I is current.
P = Total of all fans Wattage.
E= Voltage.. 12v


You should be safe if you are under 1A. It all depends on the motherboard really.
 
Yeah, you can do 3 fans, but remember that you'll have to control all three fans together, meaning that slowing down the CPU fan will also slow down the other two fans.
 
" Yeah, you can do 3 fans, but remember that you'll have to control all three fans together, meaning that slowing down the CPU fan will also slow down the other two fans."

Thats the idea :)
 
Are you sure it's okay to wire-or the rotation sensing line? Are they open collector drives?
 
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