• We’re currently investigating an issue related to the forum theme and styling that is impacting page layout and visual formatting. The problem has been identified, and we are actively working on a resolution. There is no impact to user data or functionality, this is strictly a front-end display issue. We’ll post an update once the fix has been deployed. Thanks for your patience while we get this sorted.

Abit IS7 and fan connectors

A

araczynski

Golden Member
Anyone know if I can use 3pin Y-cable splitters on 2 of the 3 fan connectors on the motherboard? for a total of 5 fans connected to the motherboard (aside from the cpu/chipset ones), they're the standard 80mm clear/led antec types. The power supply is more then capable of the load, but not sure whether the motherboard has certain draw limitations on those connectors that i should know about before smoking my new system...

tia
andy
 
ouch, i've been running 2 of them off the connectors already... i suppose i could change that, can i ask where you read this?

thanks
 
I remembered it wrong. As long as the connectors are not set to vary the speed (variable voltage) it is o.k..

From Antec


"1. Connect to a non-variable power connector only. For best performance, Antec recommends that LED fans only be connected to a standard (steady-voltage) 12V DC power connector. If your motherboard or power supply supports fan speed control, DO NOT connect the LED fan to that variable-voltage header or output."
 
I personally would not connect LED fans to the mobo fan headers or use splitters to connect multiple fans to one motherboard fan header. You run the risk of burning out the motherboard header or possible damaging the mobo.

Each fan header on the motherboard has a specific rating as to how many amps it that take. If u exceed this, you will do damage to the mobo.

 
hmmm, i'm under the assumption that a 3pin connector on the mobo is considered non-variable as i dont' think you can control the voltage coming out of them correct? Fan speed monitoring is not the same as fan speed control i'm assuming. And the power supply has a dial to control the speed of the two led fans that are in it, but that doesn't affect the mobo voltage in any way, nor does the dial control the voltage output of any of the connectors coming out of the power supply so far as i've been able to tell, they're all hooked up and nothing changes when i change the dial (other then the 2 power supply fans).

other other thing, somebody on ABIT mentioned that the main limitation of the motherboard 3 pin connectors is that the total power (watts) comign out of the connector is limited to 6W, so if i double them up i would have to use 2 fans that dont' take more then .25A each (W=V*A)....that sounds about the normal for each fan, but i'll double check when i get home tonight...

"1. Connect to a non-variable power connector only. For best performance, Antec recommends that LED fans only be connected to a standard (steady-voltage) 12V DC power connector. If your motherboard or power supply supports fan speed control, DO NOT connect the LED fan to that variable-voltage header or output."[/quote]

 
I'm currently running 5 80mm Panaflo L1A fans off my mobo, an IC7-G. I'm using 2 Y splitters from compusa. At one point I was running 5 Antec Blue LED fans off of it with no problem.

You don't have anything to worry about.
 
thanks, that makes me feel a little better 🙂 how long did you run the antec/lec ones for?

Originally posted by: Nebor
I'm currently running 5 80mm Panaflo L1A fans off my mobo, an IC7-G. I'm using 2 Y splitters from compusa. At one point I was running 5 Antec Blue LED fans off of it with no problem.

You don't have anything to worry about.
Click to expand...

 
in case it helps somebody else someday down the line, I installed everything with no problems. 5 fans on 3 mobo 3pin headers using 2 splitters, the fans that are doubled up are rated at 0.19A each, so still below the 6W total per connector. the single fan is rated 0.23A.

Thank you all for your help 🙂
andy
 
You must log in or register to reply here.

TRENDING THREADS

Back
Top