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Sunbeam Rheosmart Fan Controller Question

post #1 of 6
Thread Starter 
Hey guys, I'm thinking about purchasing this fan controller, but before I do, I want to make sure of something. Does anyone know what is the lowest voltage this thing can take the fans? I couldn't find any info on this. It's pretty important as it is the difference between one set of fans i'm going to buy and another.

Any help would be greatly appreciated.
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post #2 of 6
DC output is 0-12V. Most fans start around 4-4.5 volts, some fans need more. What fans are you looking at?
post #3 of 6
Thread Starter 
Quote:
Originally Posted by gymenii View Post
DC output is 0-12V. Most fans start around 4-4.5 volts. What fans are you looking at?
Yate loon low/medium speeds. But some fan controllers can only take fans down to 7v, 6v, etc. Are you saying this controller can take the fans down to their lowest starting voltage?
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post #4 of 6
My cheapo 20W rheobus starts around 3V (best guess). My old YL's started somewhere around 5V and I could lower the voltage til they stopped which was obviously less than 5V. The newer Rheobus should have the same or similar operating DC voltage curve.
post #5 of 6
Quote:
Originally Posted by Behemoth777 View Post
Yate loon low/medium speeds. But some fan controllers can only take fans down to 7v, 6v, etc. Are you saying this controller can take the fans down to their lowest starting voltage?
The Rheosmart 6 (http://www.sunbeamtech.com/PRODUCTS/Rheosmart/6.html) controls 6 fans, with each output 0v-12v as stated in the specification. This means, it can turn any channel completely off at zero volt.

For confirmation, watch this video review. Note starting at 6:55 where the reviewer begins to turn knob 1 all the way to the left and completely shut off the fan.
post #6 of 6
Thread Starter 
Quote:
Originally Posted by windfire View Post
The Rheosmart 6 (http://www.sunbeamtech.com/PRODUCTS/Rheosmart/6.html) controls 6 fans, with each output 0v-12v as stated in the specification. This means, it can turn any channel completely off at zero volt.

For confirmation, watch this video review. Note starting at 6:55 where the reviewer begins to turn knob 1 all the way to the left and completely shut off the fan.
http://www.youtube.com/watch?v=zss43iUpsoo
So that's why some fans don't start up right when you turn the nob, because they don't have a low starting voltage? In light of this, I will probably just get some high speed yates, because the fans start @ 3v, which gives me much more flexibility.
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Razer Deathadder Chroma Glorious PC Gaming Race Pad 
CPUMotherboardGraphicsRAM
Intel Core i5 2500K ASRock Z68 Extreme3 Gen3 MSI HD 7850 Mushkin Ridgeline Series 
Hard DriveHard DriveCoolingOS
Intel 520 Series Western Digital Caviar Black Spire Gemini W/ Xigmatek Purple LED Windows 10 Pro 
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Ryzen Build
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Fiance's Rig
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CPUMotherboardGraphicsRAM
AMD Ryzen 5 1600 | 3.75ghz @ 1.35v ASUS ROG Strix B350-F ASUS ROG Strix RX 580 8GB *OTW* G.Skill Ripjaws V Series | 2933mhz @ CL16 
Hard DriveHard DriveCoolingOS
SanDisk X400 512GB WD Blue 1TB | Raid 1 Cryorig H7 Quad Lumi W/ MasterFan Pro 120 RGB Windows 10 Pro 
MonitorKeyboardPowerCase
ViewSonic XG2701 Turbot Mechanical Keyboard EVGA SuperNova P2 650w NZXT S340 Elite 
MouseMouse Pad
Razer Deathadder Chroma Glorious PC Gaming Race Pad 
CPUMotherboardGraphicsRAM
Intel Core i5 2500K ASRock Z68 Extreme3 Gen3 MSI HD 7850 Mushkin Ridgeline Series 
Hard DriveHard DriveCoolingOS
Intel 520 Series Western Digital Caviar Black Spire Gemini W/ Xigmatek Purple LED Windows 10 Pro 
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