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Old 08-14-2004, 05:05 AM   #1 (permalink)
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Default How Do I Connect My Fans To My PSU?

Hello,

I got my case yesterday and it has a PSU and 3 fans. That is all i have at the moment. I am wondering ... how do i connect the fans to the PSU. I think i now how to do it but just want to make sure.

Each of the fans has two plug things....1 has 4 pins the other has 4 holes. Now do i just plug these straight into the same plugs on the PSU?

Thanks for any help.
- Chris
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Old 08-14-2004, 09:55 AM   #2 (permalink)
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they are called molex connectors and yes you can plug them to the psu, or get an adapter and attach them to the mobo.
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Old 08-14-2004, 10:51 AM   #3 (permalink)
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You can also plug each fan into another fan, making it possible to have as many as your case and psu will let you.
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Old 08-14-2004, 11:22 AM   #4 (permalink)
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so do both of the molex connectors have to be plugged into another molex connetctor....so it goes round in a circle from psu to fan to fan to fan to psu?

coz that way i wont use up as many of the molex connectors on the psu coz i guess they are needed for other things aswell.
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Old 08-14-2004, 04:43 PM   #5 (permalink)
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well i dont think it goes back into the psu as there are no molex connectors on the psu that will fit into the loose fan molex.

So what i have is...

PSU --> Fan 1 --> Fan 2 --> Fan 3 --> losse molex

Does this seem right
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Old 08-14-2004, 09:56 PM   #6 (permalink)
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yes, thats right, you just won't get rpm readings from any type of fan speed monitoring prog. readings will only come from the ones hooked to mobo.
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Old 08-15-2004, 03:51 AM   #7 (permalink)
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Well at the moment they are daisy chained but when i find out if i have any free molex on the psu i will use them instead. The other thing is that two of the fans are temp controlled and have little green sensor things...will these still have affect when daisy cheained?
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Old 08-15-2004, 04:36 AM   #8 (permalink)
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they should since all they need is power to opperate from if i'm not seriously misstaken.
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Old 08-16-2004, 01:40 AM   #9 (permalink)
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they should yes but u wont be able to get any speed readings or anything
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Old 08-16-2004, 05:25 AM   #10 (permalink)
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Ok so i think i will plug the two temp controlled fans into the mobo if there is a place for them to go. and all there other fans will be plugged into there own molex on the psu
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