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Question about fan rated current.

post #1 of 2
Thread Starter 
If a fan is rated at 0.5 amps is it possible for that fan to draw more than 0.5 amps? The reason I am asking is because I am wondering if I can run two fans on a single motherboard fan header which is rated at 1 amp.
post #2 of 2
You shouldn't run more than one fan per header. There is one way to do it though - Get a PWM splitter that lets you run the fans off the power supply molex, but gets the pwm signal off the board. This way you can put as many fans as you want on one header since the only thing coming off the board is just the pwm signal and not any power. This won't work with 3 pin fans, only 4 pin.
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The Butthurt Box
(21 items)
 
   
CPUMotherboardGraphicsGraphics
Intel Core i5 2500K P67 Professional AMD Radeon HD 6950 unlock NVIDIA GeForce GTX 460 2gb 
RAMRAMHard DriveHard Drive
G.Skill Ripjaws G.Skill Ripjaws Intel X25-V Seagate Barracuda 
Hard DriveOptical DriveOSMonitor
WD Goflex USB 3.0 24x DVD R/W DL Win7 Ultermate 64 Acer 20in 1600x900 
MonitorMonitorMonitorKeyboard
Compaq 20in 1600x900 17in Dell 1280x1024 19in Gateway 1280x1024 Razer Blackwidow mech w/ cherry MX blues 
PowerCaseMouseAudio
Kingwin LZ-750 HAF 932 + sound activated lights Logitech G500 Rosewill USB headset 
CPUMotherboardGraphicsRAM
Pentium 4 3.2ghz w/ HT HP Intel IGP 4gb Mushkin DDR2 
Hard DriveOSPowerCase
80gb sata WinXP Pro HP OEM HP Small form factor 
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