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Gentle Typhoon AP30 (4250 RPM) Power?

post #1 of 6
Thread Starter 
Hi,

I've just got an Gentle Typhoon 4250RPM fan, and I've noticed that on the cover it says "Only connect to peripheral 4-pin from PSU to draw power". The connectors attached to the fan are two 4-pin molex connectors (1 male, 1 female) and a 3-pin fan header with only the yellow cable attached to it.

Does that mean that a fan controller (Lamptron FC6 in my case) won't be able to regulate the speed at which it's running, and only monitor it?
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post #2 of 6
You'll need to adapt it for the Lamptron, they've left off the mobo fan header because typically mobo's can't power it. Your Lamptron can though but to get control and rpm you'll need to add a 3 pin plug. There's only (+), (-), and sensor, just make sure they go to the correct pins on the lamptron.

http://www.interfacebus.com/ATX_Motherboard_Fan_Connector_Pinout.html
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post #3 of 6
Thread Starter 
Quote:
Originally Posted by Darren9;13866573 
You'll need to adapt it for the Lamptron, they've left off the mobo fan header because typically mobo's can't power it. Your Lamptron can though but to get control and rpm you'll need to add a 3 pin plug. There's only (+), (-), and sensor, just make sure they go to the correct pins on the lamptron.

http://www.interfacebus.com/ATX_Motherboard_Fan_Connector_Pinout.html
However, from the specification for the FC6:
Quote:
Power Output: Up to 20w per Channel
DC Input: +12v (Standard 4-Pin Connector)
DC Output: 0-12v

The fan is rated at 12v / 0.56a. If my calculations are right, it draws a 6.72w, which the FC6 can handle. Admittedly, my understanding of electronics beyond this point is very limited, so it's possible that I'm not understanding something correctly. But the fan uses 12v, and the FC6 only has a single 12v input. So does that not mean that if I ever run the GT at full speed, there simply won't be enough voltage for the other fans connected? Or does it not work like that?
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post #4 of 6
In short: 12 volt is the "type" of power, 0.56 amperes is the amount of it.
Assuming FC6 has 6 channels (not sure), it will draw up to 120 watts (10a @ 12v) from the PSU through molex 4 pin connection, if you run it at full load on each channel.

One thing to keep in mind is the start-up power requirement of the fan. Gentle Typhoon 4250 RPM (also known as GT-30) requires 1.35A which gives 16.2 watts.

If I didn't get extremely confused anywhere, the only safe way to run GT-30s on FC6 is maximum of one per channel, up to 6 in total. You will have some spare juice on each channel so you might fit in another, non-super high RPM fan (or two) along the GT if you wish to do so.

Edit#43543: Had to rewrite half of the post...
Edited by Thewaster - 6/14/11 at 7:28am
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post #5 of 6
Quote:
Originally Posted by Thewaster;13866732 
In short: 12 volt is the "type" of power, 0.56 amperes is the amount of it.
Assuming it has 6 channels and I got it right, the fan controller will draw up to 120 watts (10a @ 12v) from the PSU through molex 4 pin connection, if you run it at full load on each channel.

One thing to keep in mind is the start-up power requirement of the fan. Gentle Typhoon 4250 RPM (also known as GT-30) requires 1.35A which gives 16.2 watts.

If I didn't get extremely confused somewhere on the way, I think the only safe way is to run only one GT-30 per channel on FC6.

^ This, the AP-30 is well within the 20w per channel of your fan controller, typical mobo's are 1Amp or 12Watt per channel (header) so they've left off the connector to avoid possible damage at start-up. Which is inconvenient for you with a more powerful controller.
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post #6 of 6
Thread Starter 
Right, thanks for help. +rep.
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