Re: A8V Deluxe - fan connections
- From: nospam@xxxxxxxxxx (Paul)
- Date: Thu, 05 Jan 2006 09:03:26 GMT
In article <Dx0vf.247958$ki.29226@pd7tw2no>, Jerome <foo@xxxxxxx> wrote:
> I just set up an A8V Deluxe board and bought some new case fans that can
> connect to the motherboard connectors, but I am a bit confused. The fans
> come with the little connectors for the motherboard and the larger
> connectors for the power supply plugs.
>
> Do I use both?
>
> Or do the little connectors provide power to the fans and I can ignore the
> larger connectors?
>
> I tried using just the little connectors but the fans didn't run - maybe
> the machine wasn't warm enough to cause them to be needed?
>
> The booklet for the mobo just says there are connections, and not how to
> use them and since these type of fans are new to me (Antec 80mms) I'm not
> sure the correct way to set them up. Right now I am powering them from the
> power supply and have them connected to the mobo connectors, and the fans
> run all the time.
Rather than explain all the possible combinations of cables that
come with fans, I'll take a guess that the three pin connector
has a single yellow wire on it. The other connector is for power
and has the Molex 1x4 disk drive connector(s).
When you connect the fan's Molex connector to a disk drive
power connector from the ATX PSU, the fan will get power to spin.
(It uses the +12V and GND, of the possible +12V,GND,GND,+5V pins on
the Molex.)
If you decide to connect the three pin fan connector with the
single yellow wire on it, to a motherboard header, that
carries the tachometer (RPM) signal to the motherboard.
Assuming the motherboard picks up that signal and connects
it to monitor hardware, you'll be able to read the RPMs
of the fan in software.
If the above description matches what you've got, then connect
both of them. If the three pin fan connector has some other wire
configuration, describe it in more detail.
The fans should run all the time, as they are connected
right to the +12V and GND on the Molex connector.
Some of the available case fans out there now, have a
thermal sensor. That allows that type of fan to adjust
its own speed, according to the computer case air temperature.
I see on the Antec web site, that their "SmartCool" fans
do something like that. They also make the older fixed
speed fans as well.
There are also some fans that come with a small adjustment
pot on the end of a cable. You can dial those to the
desired fixed speed to reduce the noise. I got some Enermax
fans like that, but they smell so bad, I cannot use them.
HTH,
Paul
.
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