Computer fans in a stand.
- Thread starter mr9iron
- Start date
computer fans
computer fans
The stand that I currently have came to me from a previous owner who had installed two small computer like fans at opposite ends in it. The fans are wired to a wire terminal strip, and then to a power supply unit, which I in turn have plugged into a digital timer. I currently have it set to come on and off several different times of the day and night. I just did not like the added noise of them on all the time. Not real loud, but still could hear air moving. Not sure how you might tie them into an Apex system controller.
computer fans
The stand that I currently have came to me from a previous owner who had installed two small computer like fans at opposite ends in it. The fans are wired to a wire terminal strip, and then to a power supply unit, which I in turn have plugged into a digital timer. I currently have it set to come on and off several different times of the day and night. I just did not like the added noise of them on all the time. Not real loud, but still could hear air moving. Not sure how you might tie them into an Apex system controller.
I use computer fans in my stand and canopy. I bought the fans from Radio Shack and a 12v DC power supply. They are controlled by my Apex with no problems. I also use a 12" x 12" house furnace filter for the fan in my stand. I have Golden Retrievers and with the long hair the filter keeps it out of my sump.
Sent from my ASUS Transformer Pad TF300T using Tapatalk 4
Sent from my ASUS Transformer Pad TF300T using Tapatalk 4
AZBigJohn
Usually confused...
Ok, here are the fans that I have. So, how do I go about wiring them? I am not an electrician so all help is appreciated.
Go to any computer electronics store (I use Fry's electronics out here, but I'm sure Radio Shack would have them) and buy a computer fan power supply (that's what they're called- s.b about $6) and the fans simply plug into it. One power supply can run 2-4 fans depending on size. The plugs are pretty much universal.
Thank you for that. I will give it a look.
SGT_York
New member
You need to ensure both fans are 12Volts. I can't read the picture clear enough but it will say a number followed by a V then another number followed by a Amp or mA M amp is in thousands.
If they are both 12V you can use them together if not then throw the non-12V out and get another. If it is an old computer they may not be 12V or if you used a CPU fan.
You need to match the volts and buy the transformer above the amp capacity of both fans. So add the amps should be 5 or less and buy a transformer 12V with 5 amps or more as the output.
Radioshack has some available I usually like to swing by goodwill or other thrift store and get them really cheap. buy thread connectors to attach the wires. (DC is safe and the fans will only work if you connect the positive to positive and negative to negative) They also need to be in parallel not serial. plug each fan into the transformer wires don't wire one fan into the other fan.
you can use the Apex to turn them on or off at your pleasure.
If they are both 12V you can use them together if not then throw the non-12V out and get another. If it is an old computer they may not be 12V or if you used a CPU fan.
You need to match the volts and buy the transformer above the amp capacity of both fans. So add the amps should be 5 or less and buy a transformer 12V with 5 amps or more as the output.
Radioshack has some available I usually like to swing by goodwill or other thrift store and get them really cheap. buy thread connectors to attach the wires. (DC is safe and the fans will only work if you connect the positive to positive and negative to negative) They also need to be in parallel not serial. plug each fan into the transformer wires don't wire one fan into the other fan.
you can use the Apex to turn them on or off at your pleasure.
d0ughb0y
Active member
if you really want to get fancy (instead of keeping it simple), it looks like one of the fan has 3 wire connection. That one probably has pwm speed control and you can make the spin speed proportional to measured temperature. That's how more expensive computer cases try to keep fan noise down.
Hot Pursuit
New member
You could just use the power supply from the computer. Mount it in the stand and extend the wires.
IT guy here.
Simple, black=negative
Red=Positive 12v
If you wire them backwards, they'll just turn backwards. Normally the white wire is the rpm sensor, it's used to send the rpm of the fan to the computer to insure the fan is working properly. DISREGARD THAT WIRE
The 4th wire is the low voltage, 5v I beleive, to make the fan run silent.
DISREGARD THAT WIRE
Little tip for those who wants to install computer fans. Under a 12v power supply, they can be quite noisy, "high pitch noise". You should run them at 5v (they will simply run slower thus quieter(use the same red wire as the 12v)). What 5v power supply that everyone has a crap load of?
USB phone chargers!! If you run multiple fans off the same power supply, just make sure that the total amps from the fans don't exceed the amp output of the usb charger.
That's it dirt cheap fans. Free Power supply.
Simple, black=negative
Red=Positive 12v
If you wire them backwards, they'll just turn backwards. Normally the white wire is the rpm sensor, it's used to send the rpm of the fan to the computer to insure the fan is working properly. DISREGARD THAT WIRE
The 4th wire is the low voltage, 5v I beleive, to make the fan run silent.
DISREGARD THAT WIRE
Little tip for those who wants to install computer fans. Under a 12v power supply, they can be quite noisy, "high pitch noise". You should run them at 5v (they will simply run slower thus quieter(use the same red wire as the 12v)). What 5v power supply that everyone has a crap load of?
USB phone chargers!! If you run multiple fans off the same power supply, just make sure that the total amps from the fans don't exceed the amp output of the usb charger.
That's it dirt cheap fans. Free Power supply.
Rognin
New member
I'm using three of these in my stand.
Silentx Cabinet cooling solution
Reason I chose it is because the 12v power supply is also the controller. So only one wire to the 120vac and you can have up to 5 fans controlled. Tuning down the fans reduces the noise quite a bit and the 38mm thickness really helps with the air flow and mmh2o.
Silentx Cabinet cooling solution
Reason I chose it is because the 12v power supply is also the controller. So only one wire to the 120vac and you can have up to 5 fans controlled. Tuning down the fans reduces the noise quite a bit and the 38mm thickness really helps with the air flow and mmh2o.
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