Imac G4 fan swap issue – not starting after replacement

F5F Stay Refreshed Hardware Desktop Imac G4 fan swap issue – not starting after replacement

Imac G4 fan swap issue – not starting after replacement

Imac G4 fan swap issue – not starting after replacement

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beth04
Member

156

05-30-2016, 03:56 PM

#1

I was handling the swap of the noisy, outdated fan on my iMac G4. I trimmed the connector and checked the polarity according to the following setup: (Cable color on iMac → matching cable on replacement fan – Arctic F9: black → striped black, red → middle yellow, yellow → outer black, not striped). When linking the old fan this way to a USB adapter it started spinning. After placing the new fan in the iMac, it failed to spin and wasn’t recognized by the OS (10.4.11). How can I verify if my cable polarity is correct? I have a multimeter but don’t know what to test. Or perhaps someone here knows the proper cable arrangement?

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beth04

05-30-2016, 03:56 PM #1

I was handling the swap of the noisy, outdated fan on my iMac G4. I trimmed the connector and checked the polarity according to the following setup: (Cable color on iMac → matching cable on replacement fan – Arctic F9: black → striped black, red → middle yellow, yellow → outer black, not striped). When linking the old fan this way to a USB adapter it started spinning. After placing the new fan in the iMac, it failed to spin and wasn’t recognized by the OS (10.4.11). How can I verify if my cable polarity is correct? I have a multimeter but don’t know what to test. Or perhaps someone here knows the proper cable arrangement?