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View Full Version : powermac g5 what is that little box?


WalterDirt
May 23, 2005, 02:23 PM
Alright so I bought a G5 2.0Ghz dualie. Aside from the mini its my first real mac. The first thing I did was open the puppy up and look at its guts. Everything seems normal except this one little box. It's been bugging me and I can't figure out what it is.

Between the Optical Drive and the Hard drive bays theres a round looking plastic module with 4 little cables running into it that I haven't a clue what it is. Does anybody know?

It has a cable that plugs into the motherboard, but even disconnected the machine boots. It's a bit hard to get to.

Thanks in advance.

Lacero
May 23, 2005, 02:27 PM
Beats me. I've always wondered what that was as well. Maybe someone geekier than me can answer that question.

stevey500
May 23, 2005, 06:53 PM
I am also interested !

dejo
May 23, 2005, 07:03 PM
My (older) G5 Dual 2.0GHz has fans between the optical drive and the HDs. Can anyone post a picture?

jimsowden
May 23, 2005, 07:06 PM
I'll ask the service guy at work wednesday.

mklos
May 23, 2005, 07:42 PM
It could be the heat sensors. I know there's sensors in every zone. It could also be the plugs from the USB, FW, Power Button, and headphone ports.

Macmaniac
May 23, 2005, 07:45 PM
Could you post a picture, my guess is that it is some sort of fan, although I can't be sure without a picture, their are fans in places people don't realize.

WalterDirt
May 24, 2005, 12:12 PM
Here is the picture, nobody seems to know what this is uh?

what is that little box (http://img215.echo.cx/img215/2387/10107234gy.jpg)

kwajo.com
May 24, 2005, 12:44 PM
Here is the picture, nobody seems to know what this is uh?

what is that little box (http://img215.echo.cx/img215/2387/10107234gy.jpg)
oh THAT box! :p when I look inside my G5, it's clearly a widget or a doodad. ;)

TEG
May 24, 2005, 01:02 PM
Looks like a converter from Legacy Power Connector to SATA power Connector. It could also be the "brain" behind the fans, controlling them, etc.

TEG

anonymous161
May 24, 2005, 01:08 PM
Where do all 4 of the cables go?
It looks like the controller for the fans, like Teg said.

mowogg
May 24, 2005, 01:16 PM
Looks like a fan to me.

hob
May 24, 2005, 01:33 PM
I'd say it's a fan - i noticed it too as soon as I opened up my new machine!

http://images.apple.com/uk/powermac/images/indexenclosure06082004.jpg

Yup, definitely a fan!!

It has a cable that plugs into the motherboard, but even disconnected the machine boots. It's a bit hard to get to.
Why on earth would you unplug it?!

kwajo.com
May 24, 2005, 01:51 PM
I'd say it's a fan - i noticed it too as soon as I opened up my new machine!

http://images.apple.com/uk/powermac/images/indexenclosure06082004.jpg

Yup, definitely a fan!!


Why on earth would you unplug it?!

i'm not convinced it's a fan, I guess the usrrest way to find out is to count the other fans in the case. if you count 8 others, then it's a fan, if there are 9 others, then it's a bomb ;)