[Cialug] [omaha] Google Datacenters

[John Lengeling]

> I've often wondered if it would be possible to convert AC to 12VDC for
the entire datacenter then run 12V lines to each server and only have a
DC->DC 

>12V/5V/3.3V Point of Load power supply do the conversion.  Thus
eliminating power loss in the multiple AC-DC conversions and running all
the extra power 

>supply fans, etc

 

This is nothing new...new to IT data centers...but nothing new...

 

Telecoms run -48v DC in their switching centers.  Another example of
something old is now new... I wish I would have thought of it....   

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