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Rob C · 09-10-2002, 06:59 AM

It's been a while since I did this mod, but if I remember it goes like this - connect the red wire (positive) from the fan to the yellow wire (+12V) from the molex/ide connector, and the black wire from the fan (ground) to the red wire (+5V) from the molex connector. That'll give you a difference of 12-5 = 7V for the fan. I found some of my 120mm fans wouldn't quite spin up at 7V, so I'm using a rheostat instead to cut the voltage down to about 8V for them, which seems to work. Try it and see though - if it works, your fans will be a hell of a lot quieter

Hopefully this pic might help as well:

09-10-2002, 06:59 AM	#2
Rob C Cooling Neophyte Join Date: Sep 2002 Location: Woodcote, UK Posts: 18	It's been a while since I did this mod, but if I remember it goes like this - connect the red wire (positive) from the fan to the yellow wire (+12V) from the molex/ide connector, and the black wire from the fan (ground) to the red wire (+5V) from the molex connector. That'll give you a difference of 12-5 = 7V for the fan. I found some of my 120mm fans wouldn't quite spin up at 7V, so I'm using a rheostat instead to cut the voltage down to about 8V for them, which seems to work. Try it and see though - if it works, your fans will be a hell of a lot quieter Hopefully this pic might help as well: