Imac G5 Fan Noise, hooking fw devices, inerfaces, HD Options

[camarao]

Hi,

I´ve ordered an Imac G5 1,8 17" with 2gb ram and a Lacie 200gb firewire disk and Logic Pro 7 .
I´ve read in the Apple discussion forums some big problems about the fan noise. It scared me because I want a silent computer ( I´m a PC user, you know...). I even heard the noise thru some audio files that were posted, and it was like a very, very annoying whine/buzz! It was terrible.
Yesterday I was to the store to pick up my Imac, but before paying and bringing it to home , I tried the Imac in the store and... there was that terrible noise! It´s not a very loud noise, but it´s very annoying, like a constant dentist drill... I didn´t brought it home! You have to wait a few minutes and you have to push the cpu to the limit to hear the noise. But after that the horrible sound is always there.
Meanwhile, I have a friend who has an Imac G5 20", and so I was running to his place to try the noise in his computer. The results : "quiet as a whisper" as Aplle claims. I´ve heard that this problem is more common in the 17" model.
So, I have some questions to you :

1- Did you heard about this ?
2 - Do you confirm that the noise is more common in the 17" model?
3- If I buy the 20" model, which has a 160gb disk, do you think I still need the Lacie firewire drive ( I will buy a M-Audio Audiophile Firewire ) ? Is the partition of the internal 160gb disk enough in terms of velocity power ( the space is enough for me) ?
4- Are there some kind of problems by having a firewire disk and a firewire soundcard in the same computer ( thru different connections) ?

I would appreciate your help, since this costs a lot of money and it´s a big decision for me ( it´s my first Mac).

Best vibes...

[lepetitmartien]

The problem affects only certain units (I don't remember if it's the 17 or the 20"), anyway it's only some units, not all.

Now it's easily solved by a DIY changing of the power unit, sent by Apple with a how-to step by step. At least in Europe. It takes minutes…

Now, we understand it's a bit of a back off to buy a new computer supposedly top of the bunch and to hear about THAT. this problem has affected Dell computers too (if I remember well) so it's more a problem of quality service at the south east contractant… But it shouldn't happen!

Concerning one of your other points, you can use the internal drive only, but it'll be better to put your audio files in another drive, that is outside and a mandatory firewire for this one.

Note that you can eventually hack the Open Firmware of the iMac and enable the 2nd monitor (Apple, it's just plain stupid this trick…) and have that way 2 monitors provided you have another one around the trick at Heise.de (file thru ftp)