Overclock.net › Forums › Cooling › Water Cooling › Can a fan like this with 3 wires...
New Posts  All Forums:Forum Nav:

Can a fan like this with 3 wires...

post #1 of 20
Thread Starter 

Can a fan like this with 3 wires run off my power supply? Can I run 8 of the together?
Here are some details on the fan:
"Blue lead is a 5V tach output, referenced to the +12V line, somewhat non-standard, can be ignored and left unconencted if not required."
    
CPUMotherboardGraphicsRAM
X3220 DFI Lanparty UT X48-T2R HD 4870 G.SKILL (2 x 2GB) DDR2 1066MHz 
Hard DriveOptical DriveOSMonitor
160GB IDE + 160GB IDE/USB Enclosure Samsung SH-S183L DL DVD±RW Windows Vista Ultimate x64 2 x Dell 1704FPV 
KeyboardPowerCaseMouse
Logitech DiNovo Edge Antec TruePower Quattro 1000w Antec P182 Logitech MX Revolution 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
X3220 DFI Lanparty UT X48-T2R HD 4870 G.SKILL (2 x 2GB) DDR2 1066MHz 
Hard DriveOptical DriveOSMonitor
160GB IDE + 160GB IDE/USB Enclosure Samsung SH-S183L DL DVD±RW Windows Vista Ultimate x64 2 x Dell 1704FPV 
KeyboardPowerCaseMouse
Logitech DiNovo Edge Antec TruePower Quattro 1000w Antec P182 Logitech MX Revolution 
  hide details  
Reply
post #2 of 20
Quote:
Originally Posted by sadiq View Post

Can a fan like this with 3 wires run off my power supply? Can I run 8 of the together?
Here are some details on the fan:
"Blue lead is a 5V tach output, referenced to the +12V line, somewhat non-standard, can be ignored and left unconencted if not required."
What I do is just find a normal MOLEX connector. Cut the wires and splice it and black goes with black, red goes with red. A little electrical tape, done.
intel
(13 items)
 
  
CPUMotherboardGraphicsRAM
I7 920 D0 4.2ghz with HT @ 1.275V Bios EVGA 3X SLI, 132-BL-E758-A1 2x XFX HD5870 in Crossfire 6gb 3x2gb Corsair XMS3 1600mhz @ 7-7-7-20 
Hard DriveOptical DriveOSMonitor
3x WD 640gb AALS Raid 0 22x Samsung SATA DVD-RW Windows 7 Dell 3008wfp IPS 
KeyboardPowerCaseMouse
Logitech G19 Corsair 850TX, 70A on a single 12v rail!! Corsair 800D Logitech G500 
  hide details  
Reply
intel
(13 items)
 
  
CPUMotherboardGraphicsRAM
I7 920 D0 4.2ghz with HT @ 1.275V Bios EVGA 3X SLI, 132-BL-E758-A1 2x XFX HD5870 in Crossfire 6gb 3x2gb Corsair XMS3 1600mhz @ 7-7-7-20 
Hard DriveOptical DriveOSMonitor
3x WD 640gb AALS Raid 0 22x Samsung SATA DVD-RW Windows 7 Dell 3008wfp IPS 
KeyboardPowerCaseMouse
Logitech G19 Corsair 850TX, 70A on a single 12v rail!! Corsair 800D Logitech G500 
  hide details  
Reply
post #3 of 20
Sure, Just put male molex on the red and black, just remember that the red fan tail wire will be going to a yellow 12vdc PSU wire...The PSU's red wire is 5vdc..Its yellow 12vdc and the black are ground..

When I wire a bunch up like that I just run a long 18 guage copper multi-strand wire for the 12v and one for the ground, just cut out little spots off the long wires insulation for each fan tail and solder it to the main wire, heat shrink it or tape it on each one...
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8600 4545Mhz*9 w/1.29V DFI DK P45 XFX 8800 GS D9GKX & D9GMH 
Hard DriveOptical DriveOSPower
2x Seagate 160 Perp. RD-1 2x Asus Vista Premium Corsair HX 620 
Case
Open Bench 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8600 4545Mhz*9 w/1.29V DFI DK P45 XFX 8800 GS D9GKX & D9GMH 
Hard DriveOptical DriveOSPower
2x Seagate 160 Perp. RD-1 2x Asus Vista Premium Corsair HX 620 
Case
Open Bench 
  hide details  
Reply
post #4 of 20
Thread Starter 
Quote:
Originally Posted by crazcookye View Post
What I do is just find a normal MOLEX connector. Cut the wires and splice it and black goes with black, red goes with red. A little electrical tape, done.
Here's what Wikipedia says:
Color__Function
Yellow..+12 V
Black...Ground
Black...Ground
Red.....+5 V

So wouldn't red (fan) go with yellow (PSU), black (fan) with black (PSU), and blue (fan) with red (PSU)?
Edited by sadiq - 6/13/08 at 9:17pm
    
CPUMotherboardGraphicsRAM
X3220 DFI Lanparty UT X48-T2R HD 4870 G.SKILL (2 x 2GB) DDR2 1066MHz 
Hard DriveOptical DriveOSMonitor
160GB IDE + 160GB IDE/USB Enclosure Samsung SH-S183L DL DVD±RW Windows Vista Ultimate x64 2 x Dell 1704FPV 
KeyboardPowerCaseMouse
Logitech DiNovo Edge Antec TruePower Quattro 1000w Antec P182 Logitech MX Revolution 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
X3220 DFI Lanparty UT X48-T2R HD 4870 G.SKILL (2 x 2GB) DDR2 1066MHz 
Hard DriveOptical DriveOSMonitor
160GB IDE + 160GB IDE/USB Enclosure Samsung SH-S183L DL DVD±RW Windows Vista Ultimate x64 2 x Dell 1704FPV 
KeyboardPowerCaseMouse
Logitech DiNovo Edge Antec TruePower Quattro 1000w Antec P182 Logitech MX Revolution 
  hide details  
Reply
post #5 of 20
Thread Starter 
Quote:
Originally Posted by ira-k View Post
Sure, Just put male molex on the red and black, just remember that the red fan tail wire will be going to a yellow 12vdc PSU wire...The PSU's red wire is 5vdc..Its yellow 12vdc and the black are ground..

When I wire a bunch up like that I just run a long 18 guage copper multi-strand wire for the 12v and one for the ground, just cut out little spots off the long wires insulation for each fan tail and solder it to the main wire, heat shrink it or tape it on each one...
How would I do it if I wanted all the fans connected to each other (in a series or whatever the hell is best) with one molex connector powering all of them?
    
CPUMotherboardGraphicsRAM
X3220 DFI Lanparty UT X48-T2R HD 4870 G.SKILL (2 x 2GB) DDR2 1066MHz 
Hard DriveOptical DriveOSMonitor
160GB IDE + 160GB IDE/USB Enclosure Samsung SH-S183L DL DVD±RW Windows Vista Ultimate x64 2 x Dell 1704FPV 
KeyboardPowerCaseMouse
Logitech DiNovo Edge Antec TruePower Quattro 1000w Antec P182 Logitech MX Revolution 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
X3220 DFI Lanparty UT X48-T2R HD 4870 G.SKILL (2 x 2GB) DDR2 1066MHz 
Hard DriveOptical DriveOSMonitor
160GB IDE + 160GB IDE/USB Enclosure Samsung SH-S183L DL DVD±RW Windows Vista Ultimate x64 2 x Dell 1704FPV 
KeyboardPowerCaseMouse
Logitech DiNovo Edge Antec TruePower Quattro 1000w Antec P182 Logitech MX Revolution 
  hide details  
Reply
post #6 of 20
Quote:
Originally Posted by sadiq View Post
How would I do it if I wanted all the fans connected to each other (in a series or whatever the hell is best) with one molex connector powering all of them?
Just like I explained to you above, just run two long main wires and connect all the fan tails to it...All the red on one side and all the blacks on the other..
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8600 4545Mhz*9 w/1.29V DFI DK P45 XFX 8800 GS D9GKX & D9GMH 
Hard DriveOptical DriveOSPower
2x Seagate 160 Perp. RD-1 2x Asus Vista Premium Corsair HX 620 
Case
Open Bench 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8600 4545Mhz*9 w/1.29V DFI DK P45 XFX 8800 GS D9GKX & D9GMH 
Hard DriveOptical DriveOSPower
2x Seagate 160 Perp. RD-1 2x Asus Vista Premium Corsair HX 620 
Case
Open Bench 
  hide details  
Reply
post #7 of 20
Thread Starter 
Quote:
Originally Posted by ira-k View Post
Just like I explained to you above, just run two long main wires and connect all the fan tails to it...All the red on one side and all the blacks on the other..
So I don't need the blue?
    
CPUMotherboardGraphicsRAM
X3220 DFI Lanparty UT X48-T2R HD 4870 G.SKILL (2 x 2GB) DDR2 1066MHz 
Hard DriveOptical DriveOSMonitor
160GB IDE + 160GB IDE/USB Enclosure Samsung SH-S183L DL DVD±RW Windows Vista Ultimate x64 2 x Dell 1704FPV 
KeyboardPowerCaseMouse
Logitech DiNovo Edge Antec TruePower Quattro 1000w Antec P182 Logitech MX Revolution 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
X3220 DFI Lanparty UT X48-T2R HD 4870 G.SKILL (2 x 2GB) DDR2 1066MHz 
Hard DriveOptical DriveOSMonitor
160GB IDE + 160GB IDE/USB Enclosure Samsung SH-S183L DL DVD±RW Windows Vista Ultimate x64 2 x Dell 1704FPV 
KeyboardPowerCaseMouse
Logitech DiNovo Edge Antec TruePower Quattro 1000w Antec P182 Logitech MX Revolution 
  hide details  
Reply
post #8 of 20
Your blue wire is for RPM indication ... normally this the yellow wire on a 3-pin fan connector.
Confusing, I know.

4-pin connectors have +12volts, ground, and +5volts for cd/dvd drives, hard drives, and the like.

3-pin connectors are commonly found on fan headers on the motherboard itself. Some ( but not all ) motherboard headers have the ability to read the rpm of the fan plugged into it. Such as the CPU fan header.

So to answer your question, the blue wire on your fan(s) is not needed for normal operation.

As far as the question regarding the "8 fans together" ... yes, they can be run together. The trick here is that you'll want to wire them in parallel rather than series.


Check this link here for wiring - http://www.overclock.net/water-cooli...ns-series.html
post #9 of 20
Thread Starter 
Quote:
Originally Posted by CrazyJoe View Post
Your blue wire is for RPM indication ... normally this the yellow wire on a 3-pin fan connector.
Confusing, I know.

4-pin connectors have +12volts, ground, and +5volts for cd/dvd drives, hard drives, and the like.

3-pin connectors are commonly found on fan headers on the motherboard itself. Some ( but not all ) motherboard headers have the ability to read the rpm of the fan plugged into it. Such as the CPU fan header.

So to answer your question, the blue wire on your fan(s) is not needed for normal operation.

As far as the question regarding the "8 fans together" ... yes, they can be run together. The trick here is that you'll want to wire them in parallel rather than series.


Check this link here for wiring - http://www.overclock.net/water-cooli...ns-series.html
Can I not do it the way ira-k said?
    
CPUMotherboardGraphicsRAM
X3220 DFI Lanparty UT X48-T2R HD 4870 G.SKILL (2 x 2GB) DDR2 1066MHz 
Hard DriveOptical DriveOSMonitor
160GB IDE + 160GB IDE/USB Enclosure Samsung SH-S183L DL DVD±RW Windows Vista Ultimate x64 2 x Dell 1704FPV 
KeyboardPowerCaseMouse
Logitech DiNovo Edge Antec TruePower Quattro 1000w Antec P182 Logitech MX Revolution 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
X3220 DFI Lanparty UT X48-T2R HD 4870 G.SKILL (2 x 2GB) DDR2 1066MHz 
Hard DriveOptical DriveOSMonitor
160GB IDE + 160GB IDE/USB Enclosure Samsung SH-S183L DL DVD±RW Windows Vista Ultimate x64 2 x Dell 1704FPV 
KeyboardPowerCaseMouse
Logitech DiNovo Edge Antec TruePower Quattro 1000w Antec P182 Logitech MX Revolution 
  hide details  
Reply
post #10 of 20
Sure you can , he was just linking you to that because it has some pic's in it...Thats the same way I was telling you to do it...
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8600 4545Mhz*9 w/1.29V DFI DK P45 XFX 8800 GS D9GKX & D9GMH 
Hard DriveOptical DriveOSPower
2x Seagate 160 Perp. RD-1 2x Asus Vista Premium Corsair HX 620 
Case
Open Bench 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8600 4545Mhz*9 w/1.29V DFI DK P45 XFX 8800 GS D9GKX & D9GMH 
Hard DriveOptical DriveOSPower
2x Seagate 160 Perp. RD-1 2x Asus Vista Premium Corsair HX 620 
Case
Open Bench 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Water Cooling
Overclock.net › Forums › Cooling › Water Cooling › Can a fan like this with 3 wires...