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F2-140 Vardar fans running max 1400 rpm instad of 1600 rpm

post #1 of 2
Thread Starter 
Hello, Recently bought the EK P280 Kit, Installed and in windows it shows that the fans runs maximum on 1400 rpm, can't go any higher.

I've installed the 2 fans in my system with the splitter, could it be the splitter limits me? And why it's not written anywhere in the EK manual installation guide...

Thanks for the help.
post #2 of 2
If you followed the EK directions and plugged the fans into a PWM motherboard header they won't run at 100% due to the nature of PWM (Pulse Width Modulation) control. It's just the way that PWM works..

Instead of sending a variable voltage to the fans, the PWM controller sends pulses of 12 volts volts to the fan The fan speed is controlled by how often the pulses are sent. Since there is always some time with no pulses, the fans can't run at 100%.
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
FX6300 Black M5A99X EVO R2.0 Nvidia GTS450 Team Vulcan PC3 12800 
Hard DriveOptical DriveCoolingOS
Samsung 840 PRO Asus DRW-1608P (x2) Custom Water Cooling Win7 (Ult), Win 8.1 & Win Server 2012 R2 
MonitorKeyboardPowerCase
2 X Samsung 915N Ducky Shine III, Blue Cherry/Blue LEDs PCP&C 1kw Lian Li PC-71 (W/Window) 
MouseAudio
Logiteck G400s none 
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My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
FX6300 Black M5A99X EVO R2.0 Nvidia GTS450 Team Vulcan PC3 12800 
Hard DriveOptical DriveCoolingOS
Samsung 840 PRO Asus DRW-1608P (x2) Custom Water Cooling Win7 (Ult), Win 8.1 & Win Server 2012 R2 
MonitorKeyboardPowerCase
2 X Samsung 915N Ducky Shine III, Blue Cherry/Blue LEDs PCP&C 1kw Lian Li PC-71 (W/Window) 
MouseAudio
Logiteck G400s none 
  hide details  
Reply
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Overclock.net › Forums › Manufacturer Forums › EK Water Blocks › F2-140 Vardar fans running max 1400 rpm instad of 1600 rpm