I have just bought 2x lian li br digital rgb fan bundles,six fans in all . It includes a fan hub that pliugs into 1 fan header and connects up to six fans. How can 1 fan header handle 6 fans ??? This applies to the addressable led header on the mother board,which shows daisychaining 6 fans. I dont want to destroy my new x570 Taichi.. so some help would be appreciated...
Rgb fan confusion!
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Is there a power input anywhere on the board? I've had fan controllers from Phanteks and NZXT and I'm pretty sure they used SATA power connectors. I wouldn't have that many fans running from a single header without extra power.
Right as no one is helping i shall try and help myself(join in if you wish
) . All of the fan headers on my motherboard are 2 amp. The specs of my fans says 0.2 amp locked(i presume locked is to prevent start up amp surge). 6 x 0.2 = 1.2 amp. In wich case i should be fine? my addressable fan header is 3 amps so again should be fine connecting all 6 fans ??
) . All of the fan headers on my motherboard are 2 amp. The specs of my fans says 0.2 amp locked(i presume locked is to prevent start up amp surge). 6 x 0.2 = 1.2 amp. In wich case i should be fine? my addressable fan header is 3 amps so again should be fine connecting all 6 fans ??
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The controller uses sata. But this is not needed if using motherboard software to controll the rgb. It only controls the lighting i woud presume.
Sorry i re read your question after reading it wrong the first time. No there is no power conector apart from the header on the hub.
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id say that SATA power connector on the controller is to power the fans, not the RGB, thats how most of them work, one way to find out is leave it disconnected and switch the PC on, if the fans are not spinning its because you dont have the power cable plugged into the controller.
I have considered this. But the controller is not used if you use the motherboards address led header. So the fan power must come from the fan header. My new case turned up damaged so at least i have a few days to get to the bottom of things.
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If thats the case, im not so sure id want to risk 1 header running 6 fans, whilst waiting for your case to be replaced, grab one of these, the supplied cable goes to the motherboard header for PWM signal only, then it requires an SATA power connector to supply power to all of the fans, great option for the price, well worth it:
https://www.overclockers.co.uk/xspc-8-way-pwm-splitter-hub-sata-powered-black-v2-fg-009-xs.html
There is however another option, if you have any old devices laying around with a molex connector on them, you can cut the molex off and use that, in your picture where is says "input", remove the VCC and GND wires from the supplied cable (motherboard end) and connect the molex connector, now your fans are getting their power from the molex connector and the PWM signal is being supplied by the motherboard.
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Both good options to consider . The sata powered hub is probably the way forward though. I still can't get my head round why Lian li would suplly a six fan splitter powered by just one pwm fan header?
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It is a bit odd, 0.15 amps each is still 1.2amps total, most motherboard headers are 1amp, so very risky in the long term, maybe they expect you to use a 2amp header if your board has one, I usually limit my headers to 3 fans per header in the past, but as im cutom water cooling, im using 5 fans (3 for a 360mm and 2 for a 240mm) with them all ramping up and down at exactly the same speed is perfect, so im using one of those splitters I linked earlier, they are tiny and can be placed pretty much anywhere, with the supplied lead connected to the CPU fan header for PWM signal and drawing thier power direct from the PSU, its one less thing to worry about.
I have just ordered one of those hubs you linked. Gives me options when i start the build. One thing of note is that all my fan headers are 2 amp and my fans are 0.2 amp. I am also wondering how many fans i can daisy chain of off my address led header. it is 3 amp so i would imagine the six fans will be fine?
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If all of your headers are 2amp, you could have run all 6 fans off one header, as for the RGB side of things, I had a look at the specs of your fans, I think if I remember right without looking it up again, the RGB was 0.35 (2.1amps) or 0.45 amps per fan (2.7amps).
Are you sure about the rgb ampage? the specs say the whole fan is 0.2 locked amps. so i would have thought the rgb side would be no more than 0.05 amps?
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Sorry forget what I said, I read it wrong on the product page.
Model Lian Li Bora 120
Fan Dimension 120mm x 120mm x 27mm
Rated Voltage DC 12 V
Fan Speed 900~1500 RPM
Max. Air Pressure 1.23 mm-H2O
Max. Air Flow 48.31 CFM
Acoustical Noise (AVG.) Max. 28.2 dBA
Insulation Type Class A
Locked Current 0.15 A
Bearing Type Hydraulic Bearing
Operation Voltage 10.8V—13.2V
Start-up Voltage ≤ 6V (ON/OFF)
Input Currentg 0.32A (Max. 0.45A)
Input Power 3.84W (Max. 5.4W)
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Surely none of those specs refer to the LEDs' consumption.Sorry forget what I said, I read it wrong on the product page.
Model Lian Li Bora 120
Fan Dimension 120mm x 120mm x 27mm
Rated Voltage DC 12 V
Fan Speed 900~1500 RPM
Max. Air Pressure 1.23 mm-H2O
Max. Air Flow 48.31 CFM
Acoustical Noise (AVG.) Max. 28.2 dBA
Insulation Type Class A
Locked Current 0.15 A
Bearing Type Hydraulic Bearing
Operation Voltage 10.8V—13.2V
Start-up Voltage ≤ 6V (ON/OFF)
Input Currentg 0.32A (Max. 0.45A)
Input Power 3.84W (Max. 5.4W)
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Why I said forget what I said, I read it wrong
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Aye - point being, so far we haven't seen any reference to the actual LED power consumption
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Had a look around - it's 16 LEDs per fan on that fan, so 96 LEDs total.
I found typical 5V digital LEDs pull 1A for a 60 LED strip (1 metre).
So one could suggest ~1.5A for the 6 fans. The motherboard manual might suggest a maximum number of LEDs too, as that seems to be a limitation/unit of measure for RGB control.
I found typical 5V digital LEDs pull 1A for a 60 LED strip (1 metre).
So one could suggest ~1.5A for the 6 fans. The motherboard manual might suggest a maximum number of LEDs too, as that seems to be a limitation/unit of measure for RGB control.
The fans i have are slightly different from them specs. they are BR digital with a total current drain of 0.2 amps per fan . My addressable header is 5 volt,3 amp rated.
Anyways i have ordered an XSPC 8 way rgb splitter hub and a XSPC 8 way pwm splitter hub. Even thought my motherboard can technically run all the fan, for 20 quid i decided to play it safe.
Ps. my fans have 12 LED's each so slightly less current draw.
Anyways i have ordered an XSPC 8 way rgb splitter hub and a XSPC 8 way pwm splitter hub. Even thought my motherboard can technically run all the fan, for 20 quid i decided to play it safe.
Ps. my fans have 12 LED's each so slightly less current draw.
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Soldato
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I didnt even know those RGB hubs existed, thanks for that, great buy also, and once again, they take the worry away as they pull the power straight from the PSU.