connecting 4 case fans

neilm

Golden Member
Aug 25, 2002
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I have four case fans and there seems to be only one SystemFAN connector... what do I do to get them all operating?
I'm using the sis655 motherboard (8sq800 ultra) and antec 430.
 

newuser

Senior member
May 31, 2003
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connect one fan to the mobo, connect the other 3 to the PSU directly, you will most likely need 3pin to 4pin adapters which are like $1 each
 

mosco

Senior member
Sep 24, 2002
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don't try and connect all of them to the mobo, do as newuser said. Try connecting the fans to the "Fan Only" connector on the antec 430. If that doesn't push enough air, connect them to the normal molex connectors.
 

neilm

Golden Member
Aug 25, 2002
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There is only two 'fan only' connectors I see on the PSU.... so that means there is one left unconnectable?

My fan connectors are 3pin, but the PSU fan connectors are 4pin (but there is only 2 brass and 2 empty, does that make a difference?) Do I still need a adapter?

Paid £16 each for this fans :(
 

fredtam

Diamond Member
Jun 6, 2003
5,694
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I think most four pin adapters have a pass-thru so you can connect more than one.
 

Dahak

Diamond Member
Mar 2, 2000
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you can hook up to 3 fans on the antec "fan only" connectors if i remember right, and if you bought the fans locally there shouldnt be too much trouble exchanging them for the fans with the molex connector (4-pin)
or you might need to get the 3pin to 4-pin adapter
 

Jeff7

Lifer
Jan 4, 2001
41,596
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Originally posted by: Dahak
you can hook up to 3 fans on the antec "fan only" connectors if i remember right, and if you bought the fans locally there shouldnt be too much trouble exchanging them for the fans with the molex connector (4-pin)
or you might need to get the 3pin to 4-pin adapter

The fans may spin rather slowly if connected to the Fan-Only connectors; maybe Antec did this intentionally - myself and a few other users have experienced this problem/feature. You can always just use the regular 4-wire molex connectors instead, so that the fans operate at full speed.