New 8 Core MP passing power to firewire ports even when turned off???

Is anyone else noticing this? Even after you have turned the power off to the MP 8 core, power continues to travel through the firewire ports?

Some FireWire functions work with the computer off. See:
<http://developer.apple.com/documentation/HardwareDrivers/Conceptual/HWTechFireWire/Articles/FireWimplementation.html>
and
<http://developer.apple.com/documentation/HardwareDrivers/Conceptual/MacPro_0801/Articles/ProductDeveloperNote.html#//appleref/doc/uid/TP90005242>
"When in sleep, the Mac Pro has 25 W of power available to the USB and FireWire ports, and memory. If the combined USB and FireWire port power load exceeds the available power, power to those ports will be cut to preserve memory."

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Hi everyone,
My Mac Pro Early 2008 (Dual quad core 2,8) began to make noise a while ago and it drives me mad.
The sound is (100% sure) coming from the Power Supply. The sound is not mechanical, but electrical, like an oscillator crackle sort of.
First I thought it was the PSU itself, so I had it replaced with a new one, but that did not change the situation.
The (new) PSU makes excactly the same noise, even when my computer is turned off (but still connected to the power socket in the wall).
I've eliminated all possible factors that could create an interference (other electrical devices). I even completely switched off the power of my office, except for one power socket; the one I used to test the Mac. As soon as I connected the Mac, as soon the noise came back. So, it's got to be inside the Mac.
So my question is: if it's not the PSU, nor the power of my office, what could it be?
PS: I've tried a UPS too... but that did not change a bit.
Thanks for your suggestions!

Hey
I appreciate the attention and help from you guys. I installed hardware monitor and this is what tells me:
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CPU A Heatsink 28
CPU B Heatsink 29
CPU Core 1 27
CPU Core 2 30
CPU Core 3 29
CPU Core 4 27
Expansion Slots 32
Hard Drive Bay 1 30
Hard Drive Bay 2 25
Hard Drive Bay 3 24
Hard Drive Bay 4 24
Memory Bank A Point 1 38
Memory Bank A Point 2 44
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Memory Bank B Point 1 37
Memory Bank B Point 2 44
Memory Bank B Point 3 48
Memory Module A1 65
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Got power on firewire - but the mac is off ...

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bought a used mac pro 3.1 - i switched it off - but on all firewire units is still power ???
sound strange ?

It's supposed to do that. Click here for more information.
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Ipod looses power when turned off

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- Restore to factory settings/new iOS device.
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Hi the_mad_movies,
It seems like this article will be the best option for addressing this issue:
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http://support.apple.com/kb/ts4451
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Hello Terryfrank,
Congratulations on your new laptop! Also, thank you for the details of the issue you are experiencing with transferring your iTunes Library to your new computer.
I notice that you are coming from the article “iTunes: How to move your music to a new computer,” and it sounds like you might have used the Home Sharing method outlined in that article.
With Home Sharing, you can stream content from another computer, and it sounds like that is how you have it currently set up. The last step is to import the content to your new computer. Use these steps on the new computer (while the old computer is on) to import the music to your new computer’s hard drive:
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Additionally, if you want to transfer your playlists, you can export them from the old computer to the new computer:
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If you want not only your content but also your playlists to exist on your new computer, you will want to transfer a copy of all your playlists from your old computer. To do this, choose File > Library > Export Library on your old computer. Save the XML file that is created to your desktop.
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iTunes: How to move your music to a new computer
http://support.apple.com/kb/HT4527
Thank you for using Apple Support Communities.
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I've been exploring this question, too, since I just bought a new iPod nano as a gift for someone with an older G4 iMac with Firewire and USB 1.0 ports. VERY frustrating that for the sake of a cable, Apple doesn't seem to allow this! The computer isn't that old!
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I am having a very close issue too (posted also in a more recent thread about power button not functioning). My old iMac G5 20 inches got a power supply that went bad two years ago. I had it replaced and all went fine until two weeks ago.
My wife was using it, while I was away: machine shut down with a 'pop!' sound.
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New 8 Core MP passing power to firewire ports even when turned off???

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