Archived from groups: alt.comp.periphs.mainboard.asus (
More info?)
Paul,
The Chassis Fan has 4 wires; red/black, +12 & Rtn connected
to the Power Supply yellow /blk connector.
There is also a pair blue/blk wires that are connected to the A8V mobo
"Pwr Fan" connector. The Pwr Fan connector has 3 pins, +12, Rotation
& Rtn. Just thinking that I really should get the fan power from that
connector and not directly from the Power Supply.
I would need to connect both black wires together.
Joe
On Mon, 15 Aug 2005 03:12:03 -0400, nospam@needed.com (Paul) wrote:
>In article <76qvf1ljmkdked2rmpbbm8ra1catuggr04@4ax.com>,
>tanque_verde@hotmail.com wrote:
>
>> Have an A8V Deluxe in an Antec Case
>> The ASUS PC Probe indicates that the chassis fan is at zero rpm
>> although it is turning fairly fast.
>> Probe shows that the CPU and Power Supply fans are rotating as
>> expected.
>> Running "A8V1014.AMI" BIOS ; Cool 'n' Quiet in BIOS are enabled.
>>
>> Any ideas???
>
>Does the fan have three wires ? I have a bunch of fans here,
>with only two wires (+12V and GND) and they don't have a
>tachometer output (the third wire). Make sure the fan has the
>RPM signal, as that can be a reason it reads zero.
>
>The second thing, is the monitor chip. The BIOS programs it
>for a certain range of RPMs. It has a min and a max value.
>On one of my computers, the min is 1800RPM, which is much
>too high. If a fan goes to 1799RPM, the software reads it
>as zero RPM. The RPMs have to stay between the min and
>max value, to be readable.
>
>I wish the manual stated for each motherboard, what the
>minimum RPM is for the monitor chip. As then I could
>tell you what to expect. It is also possible if Cool and
>Quiet is enabled, that the fan spins too slow to be
>properly monitored.
>
> Paul