2 cpu fan headers?

[bhcool12]

Why do some motherboards come with 2 cpu fan headers?

[Amazingasian]

Cost saving measures?  A y splitter isn't very expensive anyway.http://www.newegg.com/Product/Product.aspx?Item=N82E16812162026

[petem]

Also, some heatsinks have a 2 fan configuration - saves you a splitter

[Glenwing]

So you can plug in 2 CPU fans

 

[QueenDemetria]

Why do some motherboards come with 2 cpu fan headers?

For CPU coolers like this one that have multiple fans:

[Nico559]

 

Cost saving measures? A y splitter isn't very expensive anyway.http://www.newegg.com/Product/Product.aspx?Item=N82E16812162026

You're going to kill somebodies motherboard with that. Corsair fans run 0.7 amps, CPU headers support 1 amp.

 

http://www.newegg.com/Product/Product.aspx?Item=N82E16812423164&cm_re=4_pin_splitter-_-12-423-164-_-Product

 

http://www.newegg.com/Product/Product.aspx?Item=N82E16812423165

 

These take power straight from the PSU. They give RPM feedback and control through the 4 pin via PWM or DC with 3 or 4 fan splitters, delivering full potential power without the risk of burning your shit up.

 

http://www.amazon.com/Molex-Computer-Connector-Y-Splitter-Adapter/dp/B00DU8ZZ0O
And this is how you power your liquid cooling pump. 100% power, no chance of silly fan control fucking it up.

 

 

So you can plug in 2 CPU fans

I hope you know you're pulling 1.4 amps off of a 1 amp header, unless you're going through molex..
1. Not getting full potential out of fans.
2. Risking burning your motherboard out.

[airdeano]

never had a lick of issues running three SP120 PE fans off one header for

2.5 years. whether at reduced DC or 100% startup, idle or loaded. at 100% they run

2275rpm. are you sure of that 1.4a for two fans? seen tested as startup amp was

.12a @ 3.5v

source: https://youtu.be/opEGl_eoD4w?t=33s

[iHardware Shelden]

So you can plug in 2 CPU fans

I'm to busy admiring your GTX 460