Sunbeam Rheosmart 6 Fan Controller

[dawp]

I have my rheosmart running 6 fans, 2 per pot with a 3-pin Y adapter connecting the fans to the controller. with 30 watts per channel, there is plenty of power to spare. When I first got it, I hooked 4 fans to 1 pot to see if it would work, and it did, tho at a slower speed than what I'm seeing now.

The multimeter that I have at the moment is analog and not all that great to for these kind of measurements. Plus I lost the leads years ago in one of my moves and haven't replaced them.

 

[kevindd992002]

I have my rheosmart running 6 fans, 2 per pot with a 3-pin Y adapter connecting the fans to the controller. with 30 watts per channel, there is plenty of power to spare. When I first got it, I hooked 4 fans to 1 pot to see if it would work, and it did, tho at a slower speed than what I'm seeing now.

The multimeter that I have at the moment is analog and not all that great to for these kind of measurements. Plus I lost the leads years ago in one of my moves and haven't replaced them.

Absolutely. The problem stated in this thread is with the AUTO feature of the Rheosmart 6 using the PWM signal from the motherboard. Using its MANUAL function is a no-brainer.

 

[aigomorla]

xoxide is offering the 6 port pwm for 21.95 with free shipping the last time i checked.
http://www.xoxide.com/sunbeam-rheosmart-6-fan-controller.html

if you guys are interested in this unit... get it!

I remember paying roughly 40 for mine, and then had to pay for shipping.

The PWM rheobuss has a 4 pin pwm that connects to the board.
This allows the unit to take the PWM header and control all 6 fans on PWM via button.

Here is a sample of a typical load and rest session using the PWM rheobus.
You can hear my fans BLAST when the cpu gets near 100% load and then quiet down back on idle.

http://s125.photobucket.com/albums/p73/aigomorla/Nadeshiko/?action=view&current=MOL001.mp4

 

[Minerva]

Looks weak to me.
Lamptron has a four channel one that does an honest 50WPC. It was tested full load and the voltage drop was under 3%!

I guess if you have weak fans it will be fine though. It's cheap enough!

 

[kevindd992002]

xoxide is offering the 6 port pwm for 21.95 with free shipping the last time i checked.
http://www.xoxide.com/sunbeam-rheosm...ontroller.html

if you guys are interested in this unit... get it!

I remember paying roughly 40 for mine, and then had to pay for shipping.

The PWM rheobuss has a 4 pin pwm that connects to the board.
This allows the unit to take the PWM header and control all 6 fans on PWM via button.

Here is a sample of a typical load and rest session using the PWM rheobus.
You can hear my fans BLAST when the cpu gets near 100% load and then quiet down back on idle.

http://s125.photobucket.com/albums/p73/aigomorla/Nadeshiko/?action=view&current=MOL001.mp4

Have you checked the voltage outputs of the Rheosmart?

 

[dawp]

Absolutely. The problem stated in this thread is with the AUTO feature of the Rheosmart 6 using the PWM signal from the motherboard. Using its MANUAL function is a no-brainer.

I am using the auto mode most of the time and it works just fine. Only switching to manual to max out the fans on occasion.

If I had a decent meter I'd get the measurements requested for the pwm signal.

 

[kevindd992002]

I am using the auto mode most of the time and it works just fine. Only switching to manual to max out the fans on occasion.

If I had a decent meter I'd get the measurements requested for the pwm signal.

Well, do you notice your analog fans ever spinning slowly?

 

[dawp]

they seem to spin slower but I'm not sure of the speed as it either registers as 0 or some ungodly speed such as 65535 when they are spinning low.

I'm using ASUS's Fan Xpert util that came with my board which has a calibrate option and that doesn't register proper speeds until it reaches 60% of max. I can hear the fans speed increase and it is pretty damn quiet until it hits around 50% or so.

I have also used speedfan and it does the same thing.

so yes, it does spin slower.

 

[kevindd992002]

they seem to spin slower but I'm not sure of the speed as it either registers as 0 or some ungodly speed such as 65535 when they are spinning low.

I'm using ASUS's Fan Xpert util that came with my board which has a calibrate option and that doesn't register proper speeds until it reaches 60% of max. I can hear the fans speed increase and it is pretty damn quiet until it hits around 50% or so.

I have also used speedfan and it does the same thing.

so yes, it does spin slower.

How were you able to see the 0/65535 RPM report of those fans if they are directly connected to the Rheosmart? Or are you using the RPM splitter cables that came with the device?

 

[dawp]

yup, I'm using the splitter and plugging one of the fans into the pwm header.

 

[kevindd992002]

yup, I'm using the splitter and plugging one of the fans into the pwm header.

So in essence, the RPM splitter doesn't work properly?

 

[dawp]

So in essence, the RPM splitter doesn't work properly?

I'd say the it's the board that's not reading the signal properly as the splitter is just wires and 3 connectors, not too much to screw up.

the only pwm fans I have are stock intel heatsinks and I may try connecting one of those to the splitter to see if it's any different.

I may also try to connect one of my 120s to the pwm extension.

these are the fans I currently have on my rheosmart that are feeding the rpm signal
http://www.jab-tech.com/YATE-LOON-120mm-Case-Fan-D12SH-12-High-Speed-pr-3771.html

I also have some of these I may try too to see if there is a difference between the two.
http://www.performance-pcs.com/cata...ge=product_info&cPath=36_49&products_id=24880

only got those to hold me over until the Scythe gentle typhoon isn't out almost everywhere.

 

[aigomorla]

Have you checked the voltage outputs of the Rheosmart?

Im fairly sure all rheobus PWM's offer 30W / Channel.

currently i have 6 San Aces 3 daisy chained per header, and its doing that fine.

If you need to daisy chain more amperage then 3 san aces... well, i dont even recomend a lamptron, because the current pull on something that high will do this to any fan controller:

Now if your talking about the PWM feature, you need to enable that ON your board.
You set PWN settings in bios under CPU Health in most cases, and define the PWM Values there.

As i said my Systems REV's up when there is load, and then Throttles down as the load decreases... That video should allow you to hear the difference between san aces set at 40% -> 100%

 

[kevindd992002]

Im fairly sure all rheobus PWM's offer 30W / Channel.

currently i have 6 San Aces 3 daisy chained per header, and its doing that fine.

If you need to daisy chain more amperage then 3 san aces... well, i dont even recomend a lamptron, because the current pull on something that high will do this to any fan controller:

Not exactly what I meant about "have you checked the voltage output of the Rheosmart" 🙂 What I meant by that was how does the Rheosmart convert PWM signal to voltage signals for 3-pin fans. If you read the posts by the OP, you would see that at 1% PWM, the output voltage of the Rheosmart is ~10V which is not a good value since it is too high for 1% PWM.

Now if your talking about the PWM feature, you need to enable that ON your board.
You set PWN settings in bios under CPU Health in most cases, and define the PWM Values there.

As i said my Systems REV's up when there is load, and then Throttles down as the load decreases... That video should allow you to hear the difference between san aces set at 40% -> 100%

Yup, I know about the PWM feature enabling in the BIOS of the board, no problems here.

 

[dawp]

I'd say the it's the board that's not reading the signal properly as the splitter is just wires and 3 connectors, not too much to screw up.

the only pwm fans I have are stock intel heatsinks and I may try connecting one of those to the splitter to see if it's any different.

I may also try to connect one of my 120s to the pwm extension.

these are the fans I currently have on my rheosmart that are feeding the rpm signal
http://www.jab-tech.com/YATE-LOON-120mm-Case-Fan-D12SH-12-High-Speed-pr-3771.html

I also have some of these I may try too to see if there is a difference between the two.
http://www.performance-pcs.com/catal...ducts_id=24880

only got those to hold me over until the Scythe gentle typhoon isn't out almost everywhere.

It's definitely something to do with the way the Yate Loon fans report the RPM. I tried another YL and it reported the same, the Nanoxia report the RPMs properly and as did the stock intel hsf. swapped the Y splitters between the Nanoxia and the YL and had the same results with the YL reporting erroneously.

 

[aigomorla]

Not exactly what I meant about "have you checked the voltage output of the Rheosmart" 🙂 What I meant by that was how does the Rheosmart convert PWM signal to voltage signals for 3-pin fans. If you read the posts by the OP, you would see that at 1% PWM, the output voltage of the Rheosmart is ~10V which is not a good value since it is too high for 1% PWM.

this is defined by your pwm settings.

It will go anywhere from 0V - 11.8V not exactly 12V if i remember correctly.

When PWM says 20% it will rev 20% of 11.8V.

 

[kevindd992002]

this is defined by your pwm settings.

It will go anywhere from 0V - 11.8V not exactly 12V if i remember correctly.

When PWM says 20% it will rev 20% of 11.8V.

Well actually this is what I was "expecting" of the controller but how do you explain the tests done by the OP?

 

[aigomorla]

Well actually this is what I was "expecting" of the controller but how do you explain the tests done by the OP?

mmm... problem with his RPM sense line.

the controller is NOT PWM... meaning its does not take native PWM fans..

It has a PWM header which attaches to your board, and turns all the fan ports in that controller into "PWM Style" but not true PWM.

 

[kevindd992002]

mmm... problem with his RPM sense line.

the controller is NOT PWM... meaning its does not take native PWM fans..

It has a PWM header which attaches to your board, and turns all the fan ports in that controller into "PWM Style" but not true PWM.

Yeah but would the output voltage range of the controller be the same as yours for all fans?

 

[aigomorla]

Yeah but would the output voltage range of the controller be the same as yours for all fans?

so in short 1 pwm line going to 6 fans on the controller?

Technically they should all be the same if the port is set to PWM.

Red -> no PWM feature.
Green -> PWM is on.

If its not outputting... the RPM sense line is wacked... if u took a multi meter and messured it, there might be something wrong with the controller.

 

[kevindd992002]

Same PWM voltage even if you connect different fans?

 

[aigomorla]

Same PWM voltage even if you connect different fans?

it wouldnt matter.

The PWM freq. is translated to voltage from my understanding.

So when the board says 60%!

IT should in short be 60% of 11.8V or whatever max your controller can do.

I noticed not all sunbeams are the same... some have like 12.1V max, while the most gimp one i saw was 11.7

 

[kevindd992002]

it wouldnt matter.

The PWM freq. is translated to voltage from my understanding.

So when the board says 60%!

IT should in short be 60% of 11.8V or whatever max your controller can do.

I noticed not all sunbeams are the same... some have like 12.1V max, while the most gimp one i saw was 11.7

Hmmm, I hope that's all there is with this fan controller. I'm still worried because of the tests done by the OP which gave a result of 10V as the minimum output voltage of the controller even though the PWM signal is 1%.

 

[aigomorla]

Hmmm, I hope that's all there is with this fan controller. I'm still worried because of the tests done by the OP which gave a result of 10V as the minimum output voltage of the controller even though the PWM signal is 1%.

no i can tell you mine will go down to almost shutdown point when the cpu hits low enough.

AS i said in my video i showed u, the fans were sitting at around 5-7V... and they ramped up full.... its not a 10V to 12V ramp, because the noise wouldnt be as dynamic.

 

[kevindd992002]

no i can tell you mine will go down to almost shutdown point when the cpu hits low enough.

AS i said in my video i showed u, the fans were sitting at around 5-7V... and they ramped up full.... its not a 10V to 12V ramp, because the noise wouldnt be as dynamic.

Oh ok, so I guess there's something conflicting with his own setup?

Where is the video you're talking about? I don't see it posted in the thread?