Fans running on high speed 24/7

Jeromaine Lopez · Jul 20, 2014

Hello is it bad if i have "7" Corsair af140 quiet edition fans running on high speed 24/7? I game all day, and im connecting all 7 fans to my psu from a 4-Pin to 6 x 3-Pin Fan Splitter to my psu. WIll i have any problems? idc about noise. Thank you!
4-Pin to 6 x 3-Pin Fan Splitter
http://www.amazon.com/gp/product/B007S3T4O0/ref=ox_sc_act_title_2?ie=UTF8&psc=1&smid=AELLOY6K8XB8X
FAN:
http://www.amazon.com/Corsair-Series-Edition-Single-CO-9050009-WW/dp/B007RESGGC

I also have another 2 fans connected to my h100i connected to the mobo.

nukemaster · Jul 20, 2014

Running fans full speed all the time may cause a very small decrease in runtime, but it will not be enough to worry about.

People have run fans full speed for years.

Jeromaine Lopez · Jul 20, 2014

Okay ty, what if i connected my fans to my mobo? will i be able to control them. Because someone told me that i can't control the speed of 3-pin fans

nukemaster · Jul 20, 2014

3-pin fan control depends on your board.

If it can do voltage control then 3 pin fans work fine. If it has ONLY pwm then the fan will run full speed all the time.

Some boards despite having 4 pin case fan headers will still use voltage control.

Jeromaine Lopez · Jul 20, 2014

Hmm im sorry but im a complete noob in computers, because i just started building. But would you clarify for me if i can control the 3-pin fans with my "Asus Maximus vi hero"
MOBO:
http://www.amazon.com/MAXIMUS-VI-HERO-Motherboard-Generation/dp/B00CXIVEA2/ref=sr_1_1?s=electronics&ie=UTF8&qid=1405870166&sr=1-1&keywords=asus+maximus+vi+hero

nukemaster · Jul 20, 2014

The manual(Chapter 1 page 42) indicates that your boards CPU/CHA_FAN1/CHA_FAN2/CHA_FAN3 headers can do voltage control.

CPU_OPT does not list much, but I think it may be tied to the CPU fan header.

The cpu and cpu_opt should do either voltage or PWM depending on what the board detects(has a little switch that can tell when a 4 pin fan is plugged into the cpu header).

Jeromaine Lopez · Jul 20, 2014

Okay thank your, but remember i got 7 fans. And i heard that putting 3 ore more fans to your mobo is really bad is that true? what would u recommend me to do. Connect all 7 fans to my psu with that from a 4-Pin to 6 x 3-Pin Fan Splitter , or connect all 7 fans to my mobo using splitters. Either way im gonna want to have all fans at high speed.

nukemaster · Jul 20, 2014

If you want all fans at full speed, just use the power supply.

If you wanted speed control you could place 2 per header on most boards without issues(so 6 on system headers and one on the cpu header). Your fans are only 0.15 amps and most boards are good for upto 1amp. I would recommend staying under about 0.5 just to allow for start up current.

The H100i manages its own fans.

Jeromaine Lopez · Jul 20, 2014

Okay do you know any good splitters out there to put 2 fans on 1 mobo header.

nukemaster · Jul 20, 2014

They are all the same basic thing. Just note that some link the speed sense wire.

I do not think this causes any damage, but may effect speed monitoring. Clearly the headers are made to ONLY see the speed from a single fan each.

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