Overclock.net › Forums › Cooling › Air Cooling › Max Fans/Channel with Sunbeam Rhoebus?
New Posts  All Forums:Forum Nav:

Max Fans/Channel with Sunbeam Rhoebus?

post #1 of 2
Thread Starter 
I am ever so slowly putting together an H20 system and I've run into unknown territory.

I like to have the rad fans on a controller. This way I can order up some higher CFM fans and have the ability to dial them down. I don't see the need to have the three fans of a triple rad independently controllable. I remember the Rhoebus advertising that it can handle 20W per channel so the question is: can I have three fans on one channel?

Many fans give an operating voltage between 6 and 13 volts and a maximum amperage around, let's say 0.3a. Calculating the wattage from this gives me something in the neighborhood of 1.5W (W = V*A). If this is correct, I can run just over a dozen fans on one channel? That can't be right so what am I doing wrong?
post #2 of 2
Let's say you run an Ultra Kaze 3000 at the normal 12v, thats around 5W right there. Some crazy 200+CFM fans even use 5+A, lol, so around 50+W pre fan. Fans with under 0.30W should have no trouble stacking.

You should know that when you have a circuit in parrallel (ie: stacking fans on one channel) the Volts stay the same but the Amps will be seperated. You can have any number of fans, as long as the amps are under ( 20W divided by 12V is....lets say 1.6-ish) 1.6 Amps. I don't see the point of stacking the fans on one channel when you have 4, though. Sometimes one fan is louder then others, and you don't want to make the other fans even more quiet for that one's sake.
Obsidian
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 930 3.6ghz 1.146v EVGA x58 GTX470 water 6GB 1600mhz 6-8-6-18 1.6V 
Hard DriveOSMonitorKeyboard
SSD (80+60GB) HDD (2+2TB) Windows 7 x64 24" + 22" G15 
PowerCaseMouse
M12D 850W 800D G9 
  hide details  
Reply
Obsidian
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 930 3.6ghz 1.146v EVGA x58 GTX470 water 6GB 1600mhz 6-8-6-18 1.6V 
Hard DriveOSMonitorKeyboard
SSD (80+60GB) HDD (2+2TB) Windows 7 x64 24" + 22" G15 
PowerCaseMouse
M12D 850W 800D G9 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Air Cooling
Overclock.net › Forums › Cooling › Air Cooling › Max Fans/Channel with Sunbeam Rhoebus?