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post #1131 of 3068
Quote:
Originally Posted by listen to remix View Post
I disagree...there are many dual 120mm fan setups that do not need a splitter with a molex power connector.
It can be done with lower-powered fans, but it's still a better idea to use one with a Molex. Not like anyone is going to have a shortage of available Molex connectors, and the cost difference is negligible.
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post #1132 of 3068
Ah yes, minor fail on my part. They are adjustable, but the auto-adjust with temps isn't available for 3-pin fans. Half-assed my comment, my bad OP =P
post #1133 of 3068
Ok, so the conclusion is that I cant control 2 GTs at 80% rpm just with speedfan?
post #1134 of 3068
Quote:
Originally Posted by luchog View Post
With any multiple 120mm fan setup, using a splitter that includes a Molex power connector is a must. That way you're not risking overloading the fan header, and you will definitely have enough power for all the fans.
If you know your motherboards fan header ratings and fan draw, you can calculate how many fans you can connect. My CPU fan header alone is 2 amps. Overcourse, most motors draw 2 to 3 times their rating on start up, then stabilize to rated draw when up to speed.
Edited by ezveedub - 4/27/11 at 4:04pm
     
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post #1135 of 3068
Quote:
Originally Posted by Ronian View Post
Ok, so the conclusion is that I cant control 2 GTs at 80% rpm just with speedfan?
I would say, it depends on your motherboard CPU header rating, but with the GT-15 rated at 0.083A, with 2 fans, max load should be .5A max at start-up. If your mobo can handle that off the fan header, you're fine. If you use a splitter, you need to remove one of the fans yellow RPM wires from the connector. If you connect two fans, you will have 2 RPM signals being sent to the mobo, so your readings will most likely be off or double what it actually is.
     
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post #1136 of 3068
Quote:
Originally Posted by ezveedub View Post
If you know your motherboards fan header ratings and fan draw, you can calculate how many fans you can connect. My CPU fan header alone is 2 amps. Overcourse, most motors draw 2 to 3 times their rating on start up, then stabilize to rated draw when up to speed.
A GT AP-15 draws .083A. Two of them would draw .083*2=.166A At start up, they'll draw 3*.166A=0.498 amps. So.. It is perfectly safe to use two GT AP-15s on one mobo fan header.

I even used two slipstreams at .53A but I wouldn't suggest that unless you can guarantee your mobo can handle it...


EDIT: Damn, I got ninja'd!
    
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post #1137 of 3068
Quote:
Originally Posted by ezveedub View Post
I would say, it depends on your motherboard CPU header rating, but with the GT-15 rated at 0.083A, with 2 fans, max load should be .5A max at start-up. If your mobo can handle that off the fan header, you're fine. If you use a splitter, you need to remove one of the fans yellow RPM wires from the connector. If you connect two fans, you will have 2 RPM signals being sent to the mobo, so your readings will most likely be off or double what it actually is.
I got the Gigabyte EP45-UD3P, anyone here managed to run 2 GT-AP14 on the cpu fan slot?
post #1138 of 3068
Quote:
Originally Posted by Ronian View Post
I got the Gigabyte EP45-UD3P, anyone here managed to run 2 GT-AP14 on the cpu fan slot?
Both of them together draws less than .5amps at start up. It should work b/c most mobo fan headers can handle at least 2 amps.
    
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post #1139 of 3068
Quote:
Originally Posted by listen to remix View Post
Both of them together draws less than .5amps at start up. It should work b/c most mobo fan headers can handle at least 2 amps.
Yeah and Speedfan-wise? Never tried that, I mean there will be 2 readings for sure?
post #1140 of 3068
Hey guys. I was looking for some info on the AP-30/31's, Any of you guys use them? I wanna know about the static pressure of those two fans. I have a single San Ace on my S/A and have been thinking about switching to 2 AP-30/31's, more intrested in the AP-31's but I'm having problems finding them>.<
Noise isnt a concern of mine. want to know how well they play with fan controllers, like do the make odd noise's, or grind or anything like that? I'm looking for 100+CFM fans to deck out my case with the San Ace's are great performing fans but a 38mm wide fan make's it odd to use in a few of the place's. Thanks for any help in advance
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