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| Click here to select a new forum. | | 1ghz iMac G4 Fan replacement | Hello! I would like to replace the fan on my iMac g4 with minimal complications. I had read a little online about folsk buying the right size replacement fan but with the wrong connectors. I'm wondering if someone would provide some guidance on a good fan to purchase. Would this one work...?
Noctua NF-A9 PWM, Premium Quiet Fan, 4-Pin (92mm, Brown)
Posted by: mloret on 2025-12-08 08:25:19 | Gidday. I'm looking into the same thing and came across this. It has a bit of info about connectors for that fan, if that's of any help. 🙂
Mac Rumors - iMac G4 Fan Replacement
Posted by: Graeme Woller on 2025-12-16 00:53:10 | I bought this fan, except the FLX version, and it fit perfectly in a 1st gen, 700mhz 15" G4 to replace the original fan. Noctua is nice because they provide a ton of adapters for power and installation. I ended up using one of the included power adapters to have it piggyback off the HDD power because the original fan power pinout was backward.
Posted by: DisraeliGears on 2025-12-16 12:21:20 | If the physical connector/pin order is ever the issue, but you know the fan is electrically compatible, you can also use a very small, flat screwdriver to press down on the exposed, angled parts of crimped pins on the new fan's plug, then firmly (not with excessive force that'd rip anything, of course) pull them out. Repeat this with the original fan, taking a picture or making note of the pinout you want, and then just shove the pins of your new fan into the desired holes in the original's plug, with the bent metal parts facing into the rectangular holes like before, effectively swapping the plugs.
It might sound fiddly, but it's nondestructive, reversible, clean, and requires no soldering. If you prefer, you can also re-pin one of the adapters and not the fan itself, in case you need more slack, or to simplify future fan replacements.
Posted by: Boctor on 2025-12-16 15:38:50 |
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