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Product info and discussion - VARDAR radiator fans - Page 75

post #741 of 801
Quote:
Originally Posted by kgtuning View Post

My only concern would be the 4 amp max for all fan headers and LED's . My 12 Vardars are rated at 8.4 amps at full power. You know, maybe I'll just dump one of the 560's and 4 fans and just run 8 fans and two 560's then I can just use the motherboard PWM header and be done with it.
What I previously did with 3 120ERs and 4 140ERs... The ERs have less draw than the Furious versions. But those 7 fans were just under the limit for the CL Commander mini. Because I recently added 4 more 140ER's (8 total), I purchased the swiftech 8 way PWM sata controller. I just plug in all the 140ERs vardars to that, and then connect the PWM to the corsair link. Then just plug in my other 120ERs to it. Works like a charm.
    
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post #742 of 801
Quote:
Originally Posted by SteezyTN View Post

What I previously did with 3 120ERs and 4 140ERs... The ERs have less draw than the Furious versions. But those 7 fans were just under the limit for the CL Commander mini. Because I recently added 4 more 140ER's (8 total), I purchased the swiftech 8 way PWM sata controller. I just plug in all the 140ERs vardars to that, and then connect the PWM to the corsair link. Then just plug in my other 120ERs to it. Works like a charm.

Ahhh that makes sense. This seems like a good idea. Thanks for the input.
post #743 of 801
Quote:
Originally Posted by kgtuning View Post

okay guys, I have got to ask the question.. how bad is it to control these fans with voltage? When i bought these fans i intended on controlling them by the motherboard but I only have one PWM header and from what I hear even using the Swiftech pwm splitters, 8-10 fans is the max. I really dont want to drop the money on an Aquareo. thoughts?

Its bad to control most of the fans by voltage if they are PWM. I mean, its not "bad"... but you can achieve lower RPMs using the PWM control.
If you want to control many fans, just get a proper PWM splitter that uses 12V for a SATA or Molex plug, and the PWM signal from the motherboard.

post #744 of 801
Quote:
Originally Posted by kgtuning View Post

okay guys, I have got to ask the question.. how bad is it to control these fans with voltage? When i bought these fans i intended on controlling them by the motherboard but I only have one PWM header and from what I hear even using the Swiftech pwm splitters, 8-10 fans is the max. I really dont want to drop the money on an Aquareo. thoughts?

If you're willing to do some DIY work, you could also just get 5 or 6(Depending if you want to keep a channel for the pump) 2-way(OR 3-way) PWM splitters, disconnect their 12V and ground wires on the controller side, sleeve them and connect them all to a molex or sata power connector.
This way you can use all 6 channels of the controller(Commander Mini) evenly, you won't draw any power form it and its quite a bit cheaper than even a single Swiftech splitter.
Edited by Gilles3000 - 7/19/16 at 2:30am
post #745 of 801
Quote:
Originally Posted by Kutalion View Post

Stalefish, if you want silence go eloops, it is that simple smile.gif so far no contest on silence/perf ratio and bearing noise on sub 1500rpm.

If only they had an all Black fan. Can't work with black/white fans.
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post #746 of 801
Quote:
Originally Posted by Steamroller83 View Post

Its bad to control most of the fans by voltage if they are PWM. I mean, its not "bad"... but you can achieve lower RPMs using the PWM control.
If you want to control many fans, just get a proper PWM splitter that uses 12V for a SATA or Molex plug, and the PWM signal from the motherboard.

The problem with that is a pwm signal on my board will only be able to control 8 to 10 fans with this method. I want to run 12. I actually have made up my own set of cables that do the same as the pwm splitter you posted.


Quote:
Originally Posted by Gilles3000 View Post

If you're willing to do some DIY work, you could also just get 5 or 6(Depending if you want to keep a channel for the pump) 2-way(OR 3-way) PWM splitters, disconnect their 12V and ground wires on the controller side, sleeve them and connect them all to a molex or sata power connector.
This way you can use all 6 channels of the controller(Commander Mini) evenly, you won't draw any power form it and its quite a bit cheaper than even a single Swiftech splitter.

I think the commander mini is probably the best solution. I would just plug my pwm splitters into a few channels. Id imagine a channel could handle 4 fans (each radiator). Thanks guys
post #747 of 801
Quote:
Originally Posted by Methodical View Post

If only they had an all Black fan. Can't work with black/white fans.

I think you can easily detach the rotor from an eLoop and paint it. I personally don't like disassembling fans and bearings... i like it factory sealed.
post #748 of 801
Quote:
Originally Posted by kgtuning View Post


I think the commander mini is probably the best solution. I would just plug my pwm splitters into a few channels. Id imagine a channel could handle 4 fans (each radiator). Thanks guys

You can run an infinite number of fans by one PWM signal... its just a signal. As long as you provide enough power for the fans everything will be OK.
post #749 of 801
Quote:
Originally Posted by Steamroller83 View Post

You can run an infinite number of fans by one PWM signal... its just a signal.

That is not quite correct in that some PWM controllers can have a hard time driving a large number of fans.

Basically the PWM line is actually loaded a little every time you add a fan. Some controllers can drive more fans than others before their PWM line is loaded enough for it to not be recognised correctly by the fans.

The original Aquaero 6 had this very same issue until it was revised in their later units.
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post #750 of 801
Quote:
Originally Posted by Steamroller83 View Post

You can run an infinite number of fans by one PWM signal... its just a signal. As long as you provide enough power for the fans everything will be OK.

Quote:
Originally Posted by Costas View Post

That is not quite correct in that some PWM controllers can have a hard time driving a large number of fans.

Basically the PWM line is actually loaded a little every time you add a fan. Some controllers can drive more fans than others before their PWM line is loaded enough for it to not be recognised correctly by the fans.

The original Aquaero 6 had this very same issue until it was revised in their later units.
Basically what Costas said. thumb.gif
While I'm not electronics tech I do have experience using PWM fans and controlling them. Most PWM controllers can control about 8 fans before intermittent control problems start, but it depends on both the fan PWM circuitry and PWM controller. Some fans (Corsair are notorious) won't work with only 3 fan on a PWM signal.

I suspect the 8x fans work on single PWM controller is at least part of the reason PWM controlled fan hubs have 8x fan headers on them. wink.gif
Edited by doyll - 7/20/16 at 2:54am
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