How Do I Connect My Fans To My PSU?

chrisgill369 · 08-14-2004, 05:05 AM

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

jaksback · 08-14-2004, 09:55 AM

they are called molex connectors and yes you can plug them to the psu, or get an adapter and attach them to the mobo.

Hinrichisgod · 08-14-2004, 10:51 AM

You can also plug each fan into another fan, making it possible to have as many as your case and psu will let you.

chrisgill369 · 08-14-2004, 11:22 AM

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.

chrisgill369 · 08-14-2004, 04:43 PM

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

jaksback · 08-14-2004, 09:56 PM

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.

chrisgill369 · 08-15-2004, 03:51 AM

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?

compy · 08-15-2004, 04:36 AM

they should since all they need is power to opperate from if i'm not seriously misstaken.

Gl\l0m!$h · 08-16-2004, 01:40 AM

they should yes but u wont be able to get any speed readings or anything

chrisgill369 · 08-16-2004, 05:25 AM

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

08-14-2004, 05:05 AM	#1 (permalink)
chrisgill369 Super Techie Join Date: Aug 2004 Posts: 435	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

08-14-2004, 10:51 AM	#3 (permalink)
Hinrichisgod Super Techie Join Date: Feb 2004 Posts: 485	You can also plug each fan into another fan, making it possible to have as many as your case and psu will let you. __________________ My System Specs: Raidmax Scorpio 868 with 420w psu Intel Pentium-4 Processor 3.0ghz CPU 512K Cache, 800MHz FSB, Hyper Threading Ready Cooler Master Jet 4 Albatron PX865PE PRO II i865PE Chipset 512 MB Dual Channel [256MB X2] DDR-400 PC3200 ATI Radeon 9600 Pro @ 438/243 Sound Blaster Live! 24 bit advanced HD Maxtor 120 GB - 7200 RPM Seagate 80 GB - 7200 RPM 16x DVD 52X32X52 cd-rw Cooler Master Musketeer System Controller Logitech MX Duo Rock Chalk Jayhawk

08-16-2004, 01:40 AM	#9 (permalink)
Gl\l0m!$h Super Techie Join Date: May 2004 Posts: 372	they should yes but u wont be able to get any speed readings or anything __________________ Never underestimate the power of stupid people in large groups
$Gl\l0m!$h is offline$

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08-14-2004, 09:55 AM	#2 (permalink)
jaksback Master Techie Join Date: Mar 2004 Posts: 2,007	they are called molex connectors and yes you can plug them to the psu, or get an adapter and attach them to the mobo.

08-14-2004, 11:22 AM	#4 (permalink)
chrisgill369 Super Techie Join Date: Aug 2004 Posts: 435	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.

08-14-2004, 04:43 PM	#5 (permalink)
chrisgill369 Super Techie Join Date: Aug 2004 Posts: 435	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

08-14-2004, 09:56 PM	#6 (permalink)
jaksback Master Techie Join Date: Mar 2004 Posts: 2,007	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.

08-15-2004, 03:51 AM	#7 (permalink)
chrisgill369 Super Techie Join Date: Aug 2004 Posts: 435	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?

08-15-2004, 04:36 AM	#8 (permalink)
compy Ultra Techie Join Date: Jul 2004 Posts: 769	they should since all they need is power to opperate from if i'm not seriously misstaken.

08-16-2004, 05:25 AM	#10 (permalink)
chrisgill369 Super Techie Join Date: Aug 2004 Posts: 435	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