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Fan connectors

J

joejccva

Senior member
On a ordering site I am trying to get one of the panaflo 120mm fans Panaflo 120mm U1A - FBA12G12U1A, but it wants me to pick between a 3 pin connector or a 4 pin molex. Whats the difference between these two connectors?

Thanks.

I also want to know whether or not it's better to have the fans connect directly to the mobo or to the PSU. Any suggestions? My mobo is the Asus A8N nForce4 SLI.

 
I also want to know whether or not it's better to have the fans connect directly to the mobo or to the PSU. Any suggestions? My mobo is the Asus A8N nForce4 SLI.
Click to expand...

This answers your first question doesn't it?
 
I run most of my fans off the motherboard; this allows them to be controlled based on temps (CPU and system). The only time the fans need to speed up is during load and warmer weather. I also think its cleaner to use the board connecters rather then running PSU cables all over the place.

The only issue you have to watch out for is high powered fans that draw too much power 6-7 watts per header is prolly a safe limit.
 
Originally posted by: Operandi
I run most of my fans off the motherboard; this allows them to be controlled based on temps (CPU and system). The only time the fans need to speed up is during load and warmer weather. I also think its cleaner to use the board connecters rather then running PSU cables all over the place.

The only issue you have to watch out for is high powered fans that draw too much power 6-7 watts per header is prolly a safe limit.
Click to expand...


I'm going to tie the cables nice and neat out of the way. I also plan on buying a good fan controller but not sure of which ones are pretty good.

You know of any decent fan controllers?
 
Originally posted by: joejccva
Originally posted by: Jeff7
Anything larger than an 80mm fan should be connected to the 4-pin power connectors. If you want RPM monitoring, use one of these adapters.


And here's my favorite fan controller. Note though that the LEDs on this thing are overvolted a tad, and are extremely bright.
Click to expand...

What about the 92mm panaflo fan that is going to sit ontop of my XP-90C ? Shouldn't that plug into the mobo?
Click to expand...

Maybe. Tough thing about deciding is that most motherboard manufacturers don't list the maximum current capacity of the headers on the motherboard. The fan should list voltage and amperate ratings on its label; what are they?
 
Originally posted by: Jeff7
Originally posted by: joejccva
Originally posted by: Jeff7
Anything larger than an 80mm fan should be connected to the 4-pin power connectors. If you want RPM monitoring, use one of these adapters.


And here's my favorite fan controller. Note though that the LEDs on this thing are overvolted a tad, and are extremely bright.
Click to expand...

What about the 92mm panaflo fan that is going to sit ontop of my XP-90C ? Shouldn't that plug into the mobo?
Click to expand...

Maybe. Tough thing about deciding is that most motherboard manufacturers don't list the maximum current capacity of the headers on the motherboard. The fan should list voltage and amperate ratings on its label; what are they?
Click to expand...



Here are the stats on the Panaflo 92mm fan that I will be placing on my XP-90C:

DIMENSION: 92 x 92 x 25mm
VOLTAGE: 12VDC
CURRENT: 0.29A
SPEED: 2850 RPM
AIR FLOW: 56.8 CFM
NOISE: 35.0 dBA

MODEL: FBA09A12H


My motherboard is an Asus A8N-SLI nForce4 SLI. Think this fan will be ok to attach to the motherboard header?

 
Originally posted by: Jeff7
Anything larger than an 80mm fan should be connected to the 4-pin power connectors. If you want RPM monitoring, use one of these adapters.


And here's my favorite fan controller. Note though that the LEDs on this thing are overvolted a tad, and are extremely bright.
Click to expand...

The size of the fan is completely irrelevant; there are plenty of 60mm fans that draw more then a typical 120mm, the only factor you need to pay attention to is power draw.

Regarding fan controllers, I don't think they necessary when you have motherboards that able to control the speed of 1-3 different fan headers. You can set any fan to react to any temp your system can read and have it adjust automatically with no user intervention, no fan controller is as versatile.

My motherboard is an Asus A8N-SLI nForce4 SLI. Think this fan will be ok to attach to the motherboard header?
Click to expand...

That fan draws very little power you can easily run that off the board header.
 
Originally posted by: Operandi
Originally posted by: Jeff7
Anything larger than an 80mm fan should be connected to the 4-pin power connectors. If you want RPM monitoring, use one of these adapters.


And here's my favorite fan controller. Note though that the LEDs on this thing are overvolted a tad, and are extremely bright.
Click to expand...

The size of the fan is completely irrelevant; there are plenty of 60mm fans that draw more then a typical 120mm, the only factor you need to pay attention to is power draw.

Regarding fan controllers, I don't think they necessary when you have motherboards that able to control the speed of 1-3 different fan headers. You can set any fan to react to any temp your system can read and have it adjust automatically with no user intervention, no fan controller is as versatile.

My motherboard is an Asus A8N-SLI nForce4 SLI. Think this fan will be ok to attach to the motherboard header?
Click to expand...

That fan draws very little power you can easily run that off the board header.
Click to expand...



The motherboard I bought has the fan controls through the software that comes with the board I believe. Or it's in the BIOS I can't remember. But I did not want to run all the case fans off the motherboard headers.

I believe my mobo has 2 case fan headers, 1 cpu fan header, 1 power fan header, 1 chipset fan header. I will have 1-120mm intake stock fan from the front, 1-120mm panaflo rear exhaust fan, and 1-92mm panaflo side intake fan as my 3 case fans. Which 2 do you think should run off the mobo?

 
Originally posted by: joejccva
Originally posted by: Jeff7
Originally posted by: joejccva
Originally posted by: Jeff7
Anything larger than an 80mm fan should be connected to the 4-pin power connectors. If you want RPM monitoring, use one of these adapters.


And here's my favorite fan controller. Note though that the LEDs on this thing are overvolted a tad, and are extremely bright.
Click to expand...

What about the 92mm panaflo fan that is going to sit ontop of my XP-90C ? Shouldn't that plug into the mobo?
Click to expand...

Maybe. Tough thing about deciding is that most motherboard manufacturers don't list the maximum current capacity of the headers on the motherboard. The fan should list voltage and amperate ratings on its label; what are they?
Click to expand...



Here are the stats on the Panaflo 92mm fan that I will be placing on my XP-90C:

DIMENSION: 92 x 92 x 25mm
VOLTAGE: 12VDC
CURRENT: 0.29A
SPEED: 2850 RPM
AIR FLOW: 56.8 CFM
NOISE: 35.0 dBA

MODEL: FBA09A12H


My motherboard is an Asus A8N-SLI nForce4 SLI. Think this fan will be ok to attach to the motherboard header?
Click to expand...

This thing draws about (12*.29=3.48) 3.5 watts at full speed. Any decent MoBo should be able to handle 5W, so I'd plug it into the MoBo.

Also, the advantage of 3-pin connectors is that they have RPM monitoring, and connect directly to your mobo, so it can regulate their speed.

RoD
 
Yea I can understand that. Makes sense. However I believe my mobo only has 2 chassis fan connector headers on the mobo, then there is 1 for the cpu fan, 1 for power, and 1 for the chipset. So in essence my question is, Which 2 out of the 3 case fans that I have should plug into the motherboard? Front stock intake, Side Panaflo 92mm intake, and Panaflo 120mm rear exhaust are my 3 case fans.

Any other advice is much much appreciated. Thanks guys.
 
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