Overclock.net › Forums › Cooling › Air Cooling › noob fan connection question
New Posts  All Forums:Forum Nav:

noob fan connection question

post #1 of 4
Thread Starter 
hi there,

a quick question about connecting fans to the motherboard.
This is probably a dumb question but i'm brand new to building

On my motherboard there is a bunch of spots to connect thermal sensor cables and fans. The fan connections have 4 pins, but the fans that i have in my case right now only have 3 pin connections.
Do i need to have one of the fans that are advertised as variable speed to be able to hook them up to the motherboard? i notice on newegg that those ones come with 4 pin connections, but the selection seems to be a lot smaller.

side question i just thought of, if i do plug fans into those motherboard spots, does there need to also be thermal sensors running off them for it to adjust anything?

since i have a fan controller and most of the fans will be hooked up to that, is it even worth putting the leftover ones to the motherboard or should i just leave them plugged in straight to the power supply? (i cant quite attach all my fans to the controller since its only 6w per channel)

thanks!
post #2 of 4
You can attach 3-pin fan to 4-pin connector, no problem. They are compatible. Most probably you won't be able to adjust their RPM and they'll run @max all the time.
My Rig
(14 items)
 
Ex-wife's Rig
(15 items)
 
 
CPUMotherboardGraphicsRAM
Core i5 4460 AsRock H81M-DG4 Sapphire Rx470 Platinum KVR 1600 16Gb 
Hard DriveHard DriveCoolingOS
2x Seagate 3Tb Samsung 850 EVO 120 Scythe Ninja 3 Rev.B Windows 10 Pro 
MonitorKeyboardPowerCase
Fujitsu Siemens A17-2A Logitech K280e SuperFlower SF-550K12XP Thermaltake Versa H25 
MouseAudio
Logitech G402 Sony MDR XD150 
CPUMotherboardGraphicsRAM
Athlon 750K 4.0Ghz AsRock FM2A75 Pro4+ Sapphire R9 270X Dual-X Kingston 2x4Gb 1600 
Hard DriveHard DriveOptical DriveCooling
Samsung 850 EVO 120  Western Digital 320Gb LiteON DVD-RW CoolerMaster Hyper Z600 
OSMonitorKeyboardPower
Windows 7 Pro x64 Toshiba 32" FullHD TV Logitech FSP Hexa 550 
CaseMouse
DeLUX Logitech 
  hide details  
Reply
My Rig
(14 items)
 
Ex-wife's Rig
(15 items)
 
 
CPUMotherboardGraphicsRAM
Core i5 4460 AsRock H81M-DG4 Sapphire Rx470 Platinum KVR 1600 16Gb 
Hard DriveHard DriveCoolingOS
2x Seagate 3Tb Samsung 850 EVO 120 Scythe Ninja 3 Rev.B Windows 10 Pro 
MonitorKeyboardPowerCase
Fujitsu Siemens A17-2A Logitech K280e SuperFlower SF-550K12XP Thermaltake Versa H25 
MouseAudio
Logitech G402 Sony MDR XD150 
CPUMotherboardGraphicsRAM
Athlon 750K 4.0Ghz AsRock FM2A75 Pro4+ Sapphire R9 270X Dual-X Kingston 2x4Gb 1600 
Hard DriveHard DriveOptical DriveCooling
Samsung 850 EVO 120  Western Digital 320Gb LiteON DVD-RW CoolerMaster Hyper Z600 
OSMonitorKeyboardPower
Windows 7 Pro x64 Toshiba 32" FullHD TV Logitech FSP Hexa 550 
CaseMouse
DeLUX Logitech 
  hide details  
Reply
post #3 of 4
Quote:
Originally Posted by ronnin426850 View Post
You can attach 3-pin fan to 4-pin connector, no problem. They are compatible. Most probably you won't be able to adjust their RPM and they'll run @max all the time.
And that isn't really a bad thing, unless they are really loud. You could get a fan controller on newegg for $25-$40ish if you really want to control the speed.
    
CPUMotherboardGraphicsRAM
2600k 4.8 Ghz 1.45v ASRock Z68 PROFESSIONAL GEN3 Intel onboard Mushkin Blackline 10-11-10-28 2133 1.5v 
Hard DriveOptical DriveCoolingOS
Seagate Barracuda N/A Rasa RX360 kit Ubuntu 10.10 
MonitorKeyboardPowerCase
N/A N/A Raidmax 730 Watt IN WIN Dragon Rider 
MouseMouse PadAudio
N/A N/A N/A 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
2600k 4.8 Ghz 1.45v ASRock Z68 PROFESSIONAL GEN3 Intel onboard Mushkin Blackline 10-11-10-28 2133 1.5v 
Hard DriveOptical DriveCoolingOS
Seagate Barracuda N/A Rasa RX360 kit Ubuntu 10.10 
MonitorKeyboardPowerCase
N/A N/A Raidmax 730 Watt IN WIN Dragon Rider 
MouseMouse PadAudio
N/A N/A N/A 
  hide details  
Reply
post #4 of 4
Thread Starter 
ok, so if they would most likely run at max speed anyways then is there any benefit to plugging them into the motherboard as opposed to just running directly off the power supply?

and lets say for example that i did get a variable speed fan, and attached it to the motherboard. would i also have to put in a thermal sensor cable for it to adjust the speed properly? (the fan pins all have thermal sensor spot right beside them so not sure if they are required or not)
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Air Cooling
Overclock.net › Forums › Cooling › Air Cooling › noob fan connection question