I have an Antec True Power TP3-550 power supply and it has a thin blue
wires that end with 3 prongs (I think these are female). Anyone know
what this is for? Thanks.
<matt8500@gmail.com> wrote in message news:5c25527d-e68d-4a61-9859-fc5a3b55300a@b2g2000prf.googlegroups.com...
> I have an Antec True Power TP3-550 power supply and it has a thin blue
> wires that end with 3 prongs (I think these are female). Anyone know
> what this is for? Thanks.
I think that's an RPM monitor for the power supply fan. Optional but
nice if your system board offers RPM monitoring.
Does that get plug-in to the mother board or a fan? My mother is an
Asus P5N-D. I'm assembling the PC and my room is a mess. I can't
find the motherboard manual.
> Does that get plug-in to the mother board or a fan? *My mother is an
> Asus P5N-D. *I'm assembling the PC and my room is a mess. *I can't
> find the manual.
More info. I found the manual. If that wire gots to the motherboard,
there are 3 possible locations. These are marked: CHA_FAN1, CHA_FAN2,
and PWR_FAN. Does the wire go into the PWR_FAN? Thanks.
matt8500@gmail.com wrote:
>> Does that get plug-in to the mother board or a fan? My mother is an
>> Asus P5N-D. I'm assembling the PC and my room is a mess. I can't
>> find the manual.
>
> More info. I found the manual. If that wire gots to the motherboard,
> there are 3 possible locations. These are marked: CHA_FAN1, CHA_FAN2,
> and PWR_FAN. Does the wire go into the PWR_FAN? Thanks.
Yes.
*******
Blue wire is RPM, black wire is ground.
Since your room is a mess, the motherboard manual is here.
On Tue, 16 Sep 2008 04:23:55 -0400, Paul <nospam@needed.com> wrote:
>matt8500@gmail.com wrote:
>>> Does that get plug-in to the mother board or a fan? My mother is an
>>> Asus P5N-D. I'm assembling the PC and my room is a mess. I can't
>>> find the manual.
>>
>> More info. I found the manual. If that wire gots to the motherboard,
>> there are 3 possible locations. These are marked: CHA_FAN1, CHA_FAN2,
>> and PWR_FAN. Does the wire go into the PWR_FAN? Thanks.
>
>Yes.
>
>*******
>Blue wire is RPM, black wire is ground.
>
>Since your room is a mess, the motherboard manual is here.
>
>http://support.asus.com/download/dow...us&model=P5N-D
>
>http://dlsvr.asus.com/pub/ASUS/mb/so...n-d_manual.zip
>
That's all true, and no doubt the m/b might do something with the
signals, but on my ASUS P5E3 neither the BIOS nor ASUS's Probe
software monitors the pwr_fan socket. I connected the Antec lead to a
cha-fan socket.
Robin Bignall wrote:
> On Tue, 16 Sep 2008 04:23:55 -0400, Paul <nospam@needed.com> wrote:
>
>> matt8500@gmail.com wrote:
>>>> Does that get plug-in to the mother board or a fan? My mother is an
>>>> Asus P5N-D. I'm assembling the PC and my room is a mess. I can't
>>>> find the manual.
>>> More info. I found the manual. If that wire gots to the motherboard,
>>> there are 3 possible locations. These are marked: CHA_FAN1, CHA_FAN2,
>>> and PWR_FAN. Does the wire go into the PWR_FAN? Thanks.
>> Yes.
>>
>> *******
>> Blue wire is RPM, black wire is ground.
>>
>> Since your room is a mess, the motherboard manual is here.
>>
>> http://support.asus.com/download/dow...us&model=P5N-D
>>
>> http://dlsvr.asus.com/pub/ASUS/mb/so...n-d_manual.zip
>>
> That's all true, and no doubt the m/b might do something with the
> signals, but on my ASUS P5E3 neither the BIOS nor ASUS's Probe
> software monitors the pwr_fan socket. I connected the Antec lead to a
> cha-fan socket.
>
What you can do, is download the datasheet for the hardware
monitor chip, and see how many measurement channels it has
for fan RPMs. Sometimes, it is possible to predict in
advance, that one of the headers will be unable to measure
anything (more fan headers than channels).
That chip has five channels for RPM measurement, of which
two have dual definition pins. Three channels are definitely
available for measurements. A fourth can be used without
too much trouble (the alternate definition is a GPIO pin).
The fifth channel pin, is also used for a serial flash
interface, so if there is a serial flash chip on the
board, that channel may be "hijacked" for interfacing
to flash.
In any case, the user manual for P5E3 shows six fan
headers, and there are a maximum of five measurement
channels on the Winbond chip, so the Asus manual
is wrong. One of the headers should have the "Rotation"
label removed, as the pin obviously cannot be connected
to the hardware monitor. No channels left.
What is that blue wire from my power supply?? 
Linear Mode
