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Maximum Fan Header Current/wattage?


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I read about fan header current/wattage from the site below.

 

http://www.sudhian.com/showfaqs.cfm?fid=15&fcid=11

 

The site stated, "What is the maximum Wattage the fan headers can provide?

The maximum current the fan headers can provide is 0.5A. As power = voltage x current, this means the maximum 12v fan power that the motherboard can support on each header is 6W."

 

If this is true, it should be safe to use the Enermax fan I am considering--correct? The Enermax's rated current and power input are 0.28A and 3.36W, respectively. It has a slightly higher CFM than most 92mm fans I have read about--without an insane dB level. ;)

 

http://www.jab-tech.com/customer/product.p...1&cat=80&page=1

 

[Note: It will be used with a Thermalright XP-90 on an MSI Neo2 Plat board.]

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I would NEVER run a fan off a mobo header. Sure, it may be able to support it, but the fan might fail and short out your header and ruin your mobo (in the most extreme cases, but I would still never take the risk with a fan over 60mm).

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I would NEVER run a fan off a mobo header. Sure, it may be able to support it, but the fan might fail and short out your header and ruin your mobo (in the most extreme cases, but I would still never take the risk with a fan over 60mm).

459904[/snapback]

 

 

Well, I am using this on my Asus A7N8X w/AthlonXP2400.

http://www.tr2tt.com/products/coolers/m2.htm

The ratings are slightly higher than the fan I am considering for my MSI Neo2 Plat.

hehe, it has been running for a few years now, 24/7--with the occasional shutdown(for lanparties,etc) ;)

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I understand your concern. I just use a 3 to 4 pin adapter with the rpm sensor attached to the cpu fan header. That way i still get my rpm reading and don't have to worry about my fan choice being to much for the mobo header.

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I also have a neo 2 plat. and i also wouldn't run a 92mm of of the mobo header.

Get a second 3 pin adapter and route the yellow wire into the cpu fan header the other 2 wires plug them in a molex adapter, at least that's how i went about plugging mine :)

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I also have a neo 2 plat. and i also wouldn't run a 92mm of of the mobo header.

Get a second 3 pin adapter and route the yellow wire into the cpu fan header the other 2 wires plug them in a molex adapter, at least that's how i went about plugging mine :)

459998[/snapback]

 

 

Hazaa!! I can use the PCI slot fan speed controller, that came with the Thermaltake TR2-M2, to read the RPMs of the Enermax fan.

 

Wait a minute, the Enermax fan comes with its own adjustable fan speed dial. I wonder if the dial would conflict with the Thermaltake fan speed controller. The Thermaltake controller has a yellow wire that connects to the fan header and another 3-pin connector that connects to the fan. Also, a 4-pin molex connector is connected to the Thermaltake controller.

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