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Controlling DC fans

Rekted
By Rekted
in Cooling
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Go to solution Solved by GirlFromYonder,
1 minute ago, Rekted said:

Can you give references?

search 5v fan cable extentions

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Are there any way to control DC fans (those are the fans that use 3 pins header to the motherboard, correct me if I'm wrong). And if so what are the requirements? Any software or hardware that you need? Thanks in advance

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Posted
1 minute ago, Rekted said:

Are there any way to control DC fans (those are the fans that use 3 pins header to the motherboard, correct me if I'm wrong). And if so what are the requirements? Any software or hardware that you need? Thanks in advance

use extentions which limit the voltage to the fans

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Ryzen 5 1600, Cooler Master Hyper 212 Evo, Gigabyte X470 Gaming 7. TeamGroup Viper 4133mhz 16gb, XFX RX 480 8 GB (1000mhz cause dying), Samsung 850 EVO 250 GB M.2 SSD, An old 1tb 5400 rpm 2.5" HDD, TeamGroup 480gb & Kingston 480gb ssds (May RAID 0), 1TB Western Ditigal HDD, EVGA 750W G2 PSU, Phanteks P400s

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Just now, DeezNoNos said:

use extentions which limit the voltage to the fans

Can you give references?

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1 minute ago, Rekted said:

Can you give references?

search 5v fan cable extentions

Build

Spoiler

Ryzen 5 1600, Cooler Master Hyper 212 Evo, Gigabyte X470 Gaming 7. TeamGroup Viper 4133mhz 16gb, XFX RX 480 8 GB (1000mhz cause dying), Samsung 850 EVO 250 GB M.2 SSD, An old 1tb 5400 rpm 2.5" HDD, TeamGroup 480gb & Kingston 480gb ssds (May RAID 0), 1TB Western Ditigal HDD, EVGA 750W G2 PSU, Phanteks P400s

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13 minutes ago, DeezNoNos said:

search 5v fan cable extentions

I've read some articles so is it true that 12 volts case fans runs at their max speed?

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9 hours ago, Rekted said:

I've read some articles so is it true that 12 volts case fans runs at their max speed?

12v fans are rated to run at 100% when provided 12v. If you want to lower the fan speed, either lower the voltage with DC control or lower the duty cycle with PWM.

Check your motherboard manual to see if you can control 3pin fans through the onboard fan headers.

If you ever need help with a build, read the following before posting: http://linustechtips.com/main/topic/3061-build-plan-thread-recommendations-please-read-before-posting/
Also, make sure to quote a post or tag a member when replying or else they won't get a notification that you replied to them.

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Posted

^

Most modern mobo's can control 3pin fans. Not as accurate as PWM. And like PWM, only from certain headers or with certain software. If your mobo's own software doesn't allow good control for 3pins (Yes, I'm looking at you Gigabyte), there's always Speedfan. Hard to setup, but works like a charm.

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