This is going to blow your mind guys... these fans are reacting STRANGELY

[blackjackel]

I just built a system, I have a 240mm radiator with 4 120mm fans in push pull, two of them are corsair two of them are LEPA fans...

Both the LEPA and CORSAIR fans are on a splitter, two fans into one PWM connector.

When I connect the CORSAIR fans to the CPU or CPU_OPT header they run at balls-to-the-wall full speed. Even if i swap out the PWM connector splitters (I use two different splitters made by different manufacturers).
When I connect the CORSAIR fans to the CHASSIS fan header I am able to control them via PWM.

All three of my (other than lepa) brand fans don't behave this way, they will react to PWM no matter which header i use, and no matter which splitters I use.

This is absolutely BIZARRE behavior to me, what in the hell is going on? I called corsair and they said that as far as they know, nothing is wrong with their fans.


Edit: Called both ASUS and CORSAIR tech supports: They both offered to do an RMA and that's it, no explanation, corsair did say they MIGHT look into it but it's unlikely.

 

[ATMINSIDE]

What Corsair model number, how many of them?

 

[Tech Tweaker]

Possible fan speed setting in your BIOS I think.

Fan header may be set to 100% voltage.

 

[ATMINSIDE]

Possible fan speed setting in your BIOS I think.

Fan header may be set to 100% voltage.

This is a good thought.

My thought is that he probably has the Corsair PWM fans that are plagued with issues on splitters.

 

[blackjackel]

What Corsair model number, how many of them?

Corsair CO-9050014-WW Two of them.

Possible fan speed setting in your BIOS I think.

Fan header may be set to 100% voltage.

Nope, checked the bios, not the case... besides, remember, I'm putting in 4 other brands of fans into the exact same header one after the other and they ALL behave, only these corsairs don't.

This is a good thought.

My thought is that he probably has the Corsair PWM fans that are plagued with issues on splitters.

Nope, they behave the same way when I take them off the splitters and put them in individually.


BIZZARE!

 

[ATMINSIDE]

Corsair CO-9050014-WW Two of them.



Nope, checked the bios, not the case... besides, remember, I'm putting in 4 other brands of fans into the exact same header one after the other and they ALL behave, only these corsairs don't.



Nope, they behave the same way when I take them off the splitters and put them in individually.


BIZZARE!

That's sounding more like a fan issue, but those are the model of Corsair fans that have quite a few issues on PWM.