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3 Chassis fans with one connector on uATX MOB?!

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February 23, 2011 8:01:00 PM

Hi All,
I'm currently building my HTPC with the following relevant components:
Case - Silverstone GD05
MOB - Asus P8H67-M EVO
PSU - Enermax Modu87+ 500W

I have only 1xChassis Fan connector on my MOB (uATX) but I have 3 Chassis fans ... where should I connect them?

Best solution

a c 134 ) Power supply
February 23, 2011 8:17:03 PM

What is the amperage rating on the MoBo Header and the amperage of your fans ? Three choices.

1. Connect to Molex and lose fan speed control.

2. Gang fans on common header .... total amperage ideally less than 50% of header rating.
http://www.frozencpu.com/products/1090/cab-05/3-pin_Y_C...

3. Use fan controller
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

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February 23, 2011 8:27:43 PM

JackNaylorPE said:
What is the amperage rating on the MoBo Header and the amperage of your fans ? Three choices.

1. Connect to Molex and lose fan speed control.

2. Gang fans on common header .... total amperage ideally less than 50% of header rating.
http://www.frozencpu.com/products/1090/cab-05/3-pin_Y_C...

3. Use fan controller
http://www.newegg.com/Product/Product.aspx?Item=N82E168...


On option 2 - does it mean that instead of +12V the fans will get +6V? (that might be great ...)

I've found a connector straight from the PSU (2-pins) to the three fans in my GD05 case accessories and connected 1 fan to it, another fan to the chassis fan controller (so I can control it) and another one to the PWR_FAN, is it ok? can I control the PWR_FAN like this?
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March 5, 2011 2:08:10 AM

Best answer selected by lirsch.
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