Fan Dilemma


K

keith robinson

I have an Antec Lanboy case which has a "3-pin fan signal connector"
coming from the PSU which is to be connected to the front panel fan
post on my Intel D845PEBT2 motherboard. . . .My question is, what if I
have a front panel fan???. . . I thought it's best to have the front
fan as an intake, and a rear case fan as an exhaust. . . but this
connector coming from the PSU has me confused. . .thanks, Keith

ps. . this is my first try at computer building .
 
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B

bobb

I have an Antec Lanboy case which has a "3-pin fan signal connector"
coming from the PSU which is to be connected to the front panel fan
post on my Intel D845PEBT2 motherboard. . . .My question is, what if I
have a front panel fan???. . . I thought it's best to have the front
fan as an intake, and a rear case fan as an exhaust. . . but this
connector coming from the PSU has me confused. . .thanks, Keith

ps. . this is my first try at computer building .


Really? the mobo's pin says it's specifically for a "Front panel Fan?"

It doesn't matter, it's only a label, you connect whatever you want to
it and the fan will work the same way.





-bobb
 
S

spodosaurus

keith said:
I have an Antec Lanboy case which has a "3-pin fan signal connector"
coming from the PSU which is to be connected to the front panel fan
post on my Intel D845PEBT2 motherboard. . . .My question is, what if I
have a front panel fan???. . . I thought it's best to have the front
fan as an intake, and a rear case fan as an exhaust. . . but this
connector coming from the PSU has me confused. . .thanks, Keith

ps. . this is my first try at computer building .

It *sounds* to me like the PSU connection is for RPM monitoring of the
PSU fans which the Truepower series has (is this the PSU in that case?).
You don't have to hook this up at all, as the thermal sensor in the
PSU itself will be regulating fan speed, this just lets you monitor it.
You can connect your front case fan to that motherboard header.
Alternatively, you can connect the PSU to the motherboard header and use
a 3->4 pin adapter to connect the front case fan directly to a power
connector, but then you don't get rpm monitoring with it.

HTH,

Ari

--

Are you registered as a bone marrow donor? You regenerate what you
donate. You are offered the chance to donate only if you match a person
on the recipient list. Call your local Red Cross and ask about
registering to be a bone marrow donor.

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E

Ed_

Really? the mobo's pin says it's specifically for a "Front panel Fan?"

It doesn't matter, it's only a label, you connect whatever you want to
it and the fan will work the same way.





-bobb
I'm not real sure of this but I think that the Lanboy comes with the SmartPower
PS that supports temp sensors to control the fans. I'm thinking that pin may
have something to do with the temp sensor.

Ed
 
B

bobb

I'm not real sure of this but I think that the Lanboy comes with the SmartPower
PS that supports temp sensors to control the fans. I'm thinking that pin may
have something to do with the temp sensor.


Well, newbie can always RTFM and be done with it. 3 pins is standard
for Positive, Negative, and RPM readout.






-bobb
 
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bobb

4 fan connector leads. . .3 fan headers on the mb. . . .RTFP


No where on your original post do I see "4 fan connector leads."
Perhaps something wrong with the news server.

No brainer really, if the fan expects a fourth pin "thermal signal"
and your Mobo doesn't provide one, yer SOL.






-bobb
 
S

spodosaurus

bobb said:
Well, newbie can always RTFM and be done with it. 3 pins is standard
for Positive, Negative, and RPM readout.

3 pins does not always equal three wires, and you'd know this if you had
a look at the connector in question on an Antec PSU. I have done, and
responded.


--

Are you registered as a bone marrow donor? You regenerate what you
donate. You are offered the chance to donate only if you match a person
on the recipient list. Call your local Red Cross and ask about
registering to be a bone marrow donor.

spam trap: replace shyah_right! with hotmail when replying
 
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S

spodosaurus

keith said:
4 fan connector leads. . .3 fan headers on the mb. . . .RTFP

Keith, read my post. You have 3 fans, right? Front, Back, and CPU?
Plug them all into their appropriate motherboard headers and leave the
PSU plug off. Look at the fan plug from the PSU. It has only two
wires, right? It's for RPM monitoring only. It is not necessary for
the PSU to run, all it does is report in how fast the PSU is running its
fans. You have no option to throttle up as the PSU controls the fan
speed. If you want to monitor the fan speed of the PSU fan, then
connect that one up to a motherboard header and use a 3 to 4 pin
connector to hook the remaining case fan up to the power supply via a 4
pin molex connector, the kind used to connect to IDE drives.


--

Are you registered as a bone marrow donor? You regenerate what you
donate. You are offered the chance to donate only if you match a person
on the recipient list. Call your local Red Cross and ask about
registering to be a bone marrow donor.

spam trap: replace shyah_right! with hotmail when replying
 

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