[G4] Liquid Cooled new g5 2.5 ghz

[sr ferenczy]

On Jun 9, 2004, at 9:59 AM, Steven wrote:
>>
>
> I thinks so. In a car engine the cylinders are part of one block that 
> has to be cooled. I'm not sure if the cooling fluid passes the 
> cylinders one after the other (in a series) instead of passing the 
> cylinders in parallel at the same time. I would say the latter would 
> be possible and preferable. I'd surprise me if it were not done that 
> way.

it simply cannot pass them all at the same time, engine orientation 
prevents this. take my four cylinder vw for example, coolant flows in 
through one end of the straight four, and out at the other end -the 
last cylinder HAS to be getting coolant that has already been heat 
soaked by the first 3 cylinders in line in the series.  a mass 
"parallel" (if even possible) setup would take way too much plumbing, 
and would probably end up being far to inefficient in day to day 
working.

>
> Anyway the comparison is not valid i.m.h.o. The processors are two 
> separate units whereas the engine is one block.
>
> Steven

why wouldnt the comparison be valid? basically, the point is just to 
show that coolant, while getting very hot, still has the capability to 
dissipate heat from an even hotter surface, whether it be a microchip 
or an engine.

very obviously, highly skilled engineers have set both systems up, and 
would not let one end of the loop get "much hotter"  than the other 
end. im sure, just like in all other liquid cooled applications, both 
the beginning of the series and the end of the series are within 
operating specs.


sandor







> sr ferenczy wrote:
>
>> On Jun 9, 2004, at 9:16 AM, Steven wrote:
>>> sr ferenczy wrote:
>>>
>>>> http://www.apple.com/powermac/design.html
>>>
>>> It seems to me that if I read the diagram correctly one of the 
>>> processors will be much hotter than the other...
>>
>> no more so than in a radiator-cooled car engine, where the coolant 
>> flows in a continuos loop past the first cylinder before the last....