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Question about fan splitters and case fan connectors?

Theminecraftaddict555
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Go to solution Solved by FloRolf,

Nope, the PSU still supplies it with a 12v connection, the motherboard connection just makes the fanspeed adjustable. 

So i have a fan splitter that connects two of my fan cases in my s340 case and is also connected to my power supply and motherboard. A weird thing I realize while cleaning my pc was that the fans would still work even when the fan splitter no longer connects to the motherboard after i have removed it for cleaning up my pc. Shouldn't they stop working after they have been plugged out of the motherboard?

Don't call me a nerd, it makes me look slightly smarter than you

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Nope, the PSU still supplies it with a 12v connection, the motherboard connection just makes the fanspeed adjustable. 

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R7 1700X - Scythe Big Shuriken 3 - Asus ROG B350-i - Asus GTX 1080 Strix - 16gb G.Skill Ripjaws V 3333mhz - Silverstone SX500-LG - 500gb 960 EVO - Fractal Design Node 202 - Samsung 60KS7090 - Logitech G502 - Thrustmaster T500RS - Noblechairs Icon


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R9 3900X - H100i GTX - Asus Prime X570 Pro - EVGA RTX2060KO - 32gb LPX 3200mhz - EVGA 750G2 - 250gb 970 Evo - 6TB WD My Book Duo (Reds) - Inwin 103 White - Dell U3415W - Qpad MK-85 Brown - Logitech MX518 Legendary - Blue Yeti Platinum - Noblechairs Icon 


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Hifiman HE-400i - Kennerton Magister - Beyerdynamic DT880 250Ohm - AKG K7XX - Fostex TH-X00 - O2 Amp/DAC Combo - 
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since the splitter is also connected to your PSU i think what happens is they just lose their PWM signal and keep running at the speed they where running at since they are getting their power from the PSU.

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