How to do split wire mod for fan?

Soundster

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Joined

Sep 12, 2003

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San Francisco

• Sep 25, 2003

• #1

Does anyone know how to do a split wire mod on a cpu fan so that the fan uses power from the PSU and can still see the fan RPM on the MoBo software?

 

OC-overkill

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Joined

May 22, 2003

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Bay Area

• Sep 25, 2003

• #2

The rpm monitoring wire is the yellow one i believe. Just cut off the other two and use the molex connector, red wire to the 12v line and the other to the gnd.

 

OP

Soundster

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Joined

Sep 12, 2003

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San Francisco

• Sep 25, 2003

• Thread Starter
• #3

Thanks......But how do i keep the wire connect securely to the MoBo? Tape? Soder? Special connector I can purchase?

 

M

Mysphyt

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Apr 12, 2002

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Elsewhere

• Sep 25, 2003

• #4

I'd just leave the monitoring wire attached to the fan header, and cut power/ground at the header. Then leave the header connected to the mobo, and the power/ground from the fan connected to the PSU.

 

Jognt

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Aug 24, 2003

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Netherlands

• Sep 25, 2003

• #5

why would you do this? you have some ultra powered fan?

 

OP

Soundster

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Sep 12, 2003

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San Francisco

• Sep 25, 2003

• Thread Starter
• #6

Jognt said:

why would you do this? you have some ultra powered fan?

Click to expand...

Na....not ultra powerful fan, but when I had it in the MoBo, the fan alarm keeps going off...I had to turn the alarm off in the BIOS...also others suggested plugging it directly to the PSU is better......then the whole fan RPM won't be avai. when its in the PSU.....I don't even know why knowing a fan's RPM is important.....

 

Jognt

All round good guy

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Joined

Aug 24, 2003

Location

Netherlands

• Sep 25, 2003

• #7

ah i read in the other thread, connect to PSU for stability, and split wire to see RPM.....

knowing a fans RPM is important, cuz ull be able to see if the fan is nearing the end of its life span, or if your CPU!!!!!! fan is dying....

 

Carnil

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May 29, 2002

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Spokane, USA

• Sep 26, 2003

• #8

Soundster said:

I don't even know why knowing a fan's RPM is important.....

Click to expand...

So that you know the fan is still spinning, and whether or not it's wearing out.

 

Ffats

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Jan 20, 2003

Location

Illinois

• Sep 26, 2003

• #9

You could purchase one of these if electrical tape is too ghetto .

 

OP

Soundster

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Sep 12, 2003

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San Francisco

• Sep 26, 2003

• Thread Starter
• #10

Ffats said:

You could purchase one of these if electrical tape is too ghetto .

Click to expand...

Thanks, this is helpful!

 

PachManP

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Jul 14, 2003

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Third sphere from Sol

• Oct 1, 2003

• #11

Soundster said:

.....I don't even know why knowing a fan's RPM is important.....

Click to expand...

And you can play around with custom fan speed controlors(variable resistors in line) better.

As for tell if the fan is still running I would suddenly be able to hear things if one got cut out.

 

R

RedArmy

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Joined

Oct 17, 2002

• Oct 2, 2003

• #12

It's not even a 50/50 probability that you will be away when that happens.