watercooled pe2850 - pictures on the net

John Logsdon j.logsdon at quantex-research.com
Thu Oct 18 04:40:11 CDT 2007

What is the comparative power consumption?  

A lot of the power in such a server is used by fans that are moving large 
volumes of air through the box to the outside.  If the air can be moved to a 
local heat exchanger, cooled and returned, I would have thought that such 
water cooling (or even using a proper refrigerant) would be rather more 
efficient than conventional air cooling in keeping the box temperatures down.  

Given the present problem that a rack full of blade servers will consume as 
much as 40 amps, this may be a consideration as many suppliers still max out 
at 16 amps.  

That is also apart from the noise factor of course and not to mention the 

ISTR big IBM boxes were always water cooled in the past.

On Thursday 18 October 2007 09:07:52 michalwd1979 <michalwd1979 at o2.pl> 
<michalwd1979 at o2.pl> wrote:
> Hello everyone,
> Due to kindness of Markus Frosch the pictures of this server can be found
> on: http://www.lazyfrosch.de/hardware/watercooled_dell
> Please post any comments/suggestions about this system I will be glad to
> hear them :-).
> Regards,
> Michael
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Best wishes


John Logsdon                               "Try to make things as simple
Quantex Research Ltd, Manchester UK         as possible but not simpler"
j.logsdon at quantex-research.com              a.einstein at relativity.org
+44(0)161 445 4951/G:+44(0)7717758675       www.quantex-research.com

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