I've just completed a fan mod
http://macos9lives.com/smforum/index.php?PHPSESSID=ctqr72ngaoi59g44dggo0u4g75&topic=1922.0I replaced a 120mm fan
http://www.newegg.com/Product/Product.aspx?Item=N82E16835226013and the two 60mm in PSU
http://www.newegg.com/Product/Product.aspx?Item=N82E16835230018----------------------------------
after the mod the computer wont turn on. when power is pressed, the button lights up and it fades seconds after computer dies. i tried this with the side open i can see the fans kick, there is also a red light that comes on next to the ram.
the strange thing is when i plug in the original factory 120mm fan everything works just fine.
Its without the factory fan the computer refuses to turn on.
I've tried the new 60mm fan, the new 120mm fan, the old 60mm fan on that port and nothing is "sensed" by the machine. only thing that works is the factory 120mm. really strange.
to isolate the problem i disconnect everything internally except the power button to logic board and Psu to logic board, same thing the power button lights up then the machine instantly dies.
plug in the factory fan = all good.
here are my specs:
Apple Power Macintosh G4 1.25 DP (MDD) Specs
Identifiers: Mirrored Drive Doors - M8573LL/A - PowerMac3,6 - M8570 - 1914
August 13, 2002 Power Macintosh G4 1.25 DP (MDD) 9.2.2 *high end model*
http://www.everymac.com/systems/apple/powermac_g4/specs/powermac_g4_1.25_dp_mdd.htmlothers have posted that they haven't experience anything like this. I'm starting a new topic since this is a complete new problem.