Re: NetBSD on a PowerMac G5

[Christopher Hilton <chris%vindaloo.com@localhost>]

On Jan 11, 2013, at 2:39 PM, Thor Lancelot Simon wrote:

> [snip]

> Be aware they're extremely unreliable.  The quad-CPU modules fail and
> Apple will no longer replace them under warranty (needless to say).  I
> have one of these whose CPUs have failed for the fourth time -- they
> have been replaced twice under warranty while I owned the system and
> once while its prior owner had it, but this time the warranty on the
> third warranty repair had just expired when things went south.  You
> might want to investigate one of the last-generation dual-G5 models
> instead, which are architecturally very similar.  I don't actually know
> they're more reliable, but there should at least be less heat!
> 

After communicating with Julio offline, I did a little research into the 
difference between the dual and quad machines. If I understand things correctly 
the quad machines were liquid cooled and there are two versions of the cooling 
system. The earlier liquid cooled systems are unreliable because the cooling 
systems leaked. The later systems didn't leak as often and are thus slightly 
more reliable.

-- Chris

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