Thread: fan wiriring
View Single Post
  #7 (permalink)  
Old August 16, 2010, 01:09 PM
MpG's Avatar
MpG MpG is offline
Hall Of Fame
Join Date: Aug 2007
Location: Kitchener, ON
Posts: 3,143

Originally Posted by Zero82z View Post
That only occurs with resistor-based controllers that control the voltage going to the fans by increasing or decreasing the resistance. Most if not all modern fan controllers use PWM circuits to control the voltage, which do not have that problem. The heat production will increase with the amount of current the PWM circuit must deliver.
True, but a limit of 1 amp sounded kind of poor for a PWM-based setup, so I was guessing that it was resistive/regulator based. Hard to say, I suppose. Looking at the circuit board, the IC/cap/resistor setup for each channel could easily be either a PWM or variable-voltage type circuit.
i7 2600K | ASUS Maximus IV GENE-Z | 580GTX | Corsair DDR3-2133
Reply With Quote