[synthfiend]

I've got a G4 1.25 Ghz that get this: spins the fan up higher when I plug in firewire devices.

Also, plugging a device into a port often knocks the other one off.

Is this a motherboard replacement issue or should I think about getting a new machine?
The G4 is only 18 months old, and has been pretty much trouble free aside from the fan thing.

[lenox]

My fan speed changes whenever I put my iPod in it's dock (connected via firewire) or take it out.

I don't have enough firewire peripherals attached to test if one knocks the other off, though. Maybe I'll check tonight.

I have to say, my mac has been so noisy since Tiger...I'm really looking into replacing all the fans and building some airflow guides into the case. This is so lame!

[angelmb]

I have a MDD 1.25 GHz with a LaCie FW hard disk and a LaCie DVD burner attached to it, I can not perceive an increment in the fan loudness once the FireWire devices are on. Weird…

[Starry Night]

I also have a 1.25 GHz MDD running 10.3.9. No change to fan noise here when FW devices are plugged in.........

[Azzgunther]

Originally Posted by lenox

I have to say, my mac has been so noisy since Tiger...I'm really looking into replacing all the fans and building some airflow guides into the case. This is so lame!

http://forums.macnn.com/73/hardware-hacking/262951/mdd-g4-owners-how-quiet-your/