Safe to run Sanyo Denki off Mobo pin header?

JasonDTM

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Aug 14, 2004

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Osage City, Kansas

• Jul 3, 2005

• #1

I'm getting a Heatercore combo from Weapon, and I'm wondering if it is safe to run the fans off of the motherboard header, or even both for that matter, Mobo is K8N Neo2... Just wondering what I could use as I dont have any 3 - 4 pin adapters at the moment

 

SolidxSnake

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Joined

Dec 26, 2004

• Jul 3, 2005

• #2

what is the fan's amperage/wattage, and how much can your mobo header handle?

 

OP

JasonDTM

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Aug 14, 2004

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Osage City, Kansas

• Jul 3, 2005

• Thread Starter
• #3

Dont know exact specs but they're San Ace 120mm 103CFM fans, and I paid a premium for the combo with these.

 

Know Nuttin

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Mar 25, 2004

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Ontario, Canada

• Jul 3, 2005

• #4

I'd bet that they draw too much power. the only 12v San Ace I could find that pushes 100cfm draws 0.61A. I believe most fan headers are good up to .5A. So I wouldn't chance it.

 

MVC

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Dec 20, 2004

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Hell's Kitchen, NYC

• Jul 4, 2005

• #5

I'm pretty sure Weapon is using the Sanyo-Denki 109R1212H1011. These are rated at .52A, but I'd run them off the PSU through a controller of some type. MSI doesn't appear to provide any specs on their fan headers (I downloaded the manual and it doesn't say a thing) so I wouldn't risk it. Generally when a manufacturer avoids giving specs, the specs aren't very good. If the specs were good they'd be bragging about it

 

larva

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Joined

Jul 12, 2002

• Jul 4, 2005

• #6

Regardless of the motherboard manufacturer or specs you are asking for trouble to draw .52A from a fan header. Nevermind that you won't want to listen to the Sanyos at their full 2600rpm. I use them as case fans in my machine, with a temperature-dependant variable speed controller that runs them between 1100 and 1900rpm. At one moment you didn't have the fans either; get the proper stuff and do the job right.

 

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JasonDTM

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Aug 14, 2004

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Osage City, Kansas

• Jul 4, 2005

• Thread Starter
• #7

I dont really care about noise, it was the Denki's or 123 CFM Delta's

 

larva

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Jul 12, 2002

• Jul 4, 2005

• #8

JasonDTM said:

I dont really care about noise

Click to expand...

Why bother with water cooling, then?

 

Ven0m

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Sep 7, 2003

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Warsaw, Poland

• Jul 4, 2005

• #9

It depends on mobo - some mobos have in manuals data like 4W max, but for example some ASUS mobos according to datasheets should survive even >10W fans.

 

werdz

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Jun 11, 2005

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Miami, FL

• Jul 4, 2005

• #10

I wouldnt risk it, Just get an adaptor , better be safe than sorry later on..