[CUBE] Dead Cube saga continues...

[Rick Rodman]

Well, let's not be overly pessimistic... the last post sounded as though the
processor might have survived...

----- Original Message -----
From: "James Rice" <blackcube at megaeasy.com>
To: "Cube List" <Cube at lists.themacintoshguy.com>
Sent: Monday, December 23, 2002 22:50
Subject: Re: [CUBE] Dead Cube saga continues...


> I've never had it happen with a Mac, but we had a whole series of cheap
> ATX supplies the went bad.  Sleeve bearing fans would seize then
> everytrhing would overheat.  When the supply failed, these particular
> supplies put 55 volt unregulated chopped DC on the +-12v, 3.3 and 5v
> lines at the same time.  It blew chips off the motherboards, drive
> controller boards, lots of magic smoke set free.  I'll never buy an ATX
> supply from Thailand labeled "Green Tech".
>
> James
>
> \Tom Davidson wrote:
>
> > Sounds like you have a worst case DC-DC failure...
> > When it blew, it took everything else in the cube with it.
> > Apple's design has no protection for overload and when the
> > board fails, it shorts the 28V brick supply to 5V or 3.3V,
> > blowing out everything hooked up to those supplies.
> >
> > Realistically, you should have scrapped that machine and started
> > over with a new system. You cant re-use any electronics from your
> > original machine.
> >
> >
> > ----------
>
>
>
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