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How many fans...

by martylk2 / May 30, 2004 2:36 PM PDT

How many fans will one MB fan header accept?

There are 3 headers (mb connectors): pwrfan, chfan and cpufan.

The case I want has 4 fans, two up front and two in back. How can I connect them all when there are only 3 headers? Is it like hooking up components to a power supply with splitters? And what is the "pwrfan".

Thank you

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Re:How many fans...
by Michael Geist / May 30, 2004 10:24 PM PDT
In reply to: How many fans...

The PWR fan header is likely used to monitor the activity of the power supply fan.
The extra case fans can be plugged directly to the power supply, given there are enough leads elsewise a splitter is used.

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Re:How many fans...
by R. Proffitt Forum moderator / May 30, 2004 10:30 PM PDT
In reply to: How many fans...

"How many fans will one MB fan header accept?"


"There are 3 headers (mb connectors): pwrfan, chfan and cpufan."

Then you can fit three fans. Here's why. Each connector has so much power available and if you put two fans on one connector then that connector or more exact, the circuits that feed it may fail.

Workaround? Get a fan that draws power from a power supply cable.


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