[AusNOG] CNET: Google uncloaks once-secret server

[Andrew Cox]

I can't find any reference to the motherboard (Gigabyte GA-9IVDP) so I'd 
assume it is a custom.
The power supply also has a Google part number on it as well.

Kaan Kivilcim wrote:
> "Another illustration of Google's obsession with efficiency comes through power supply design. Power supplies convert conventional AC (alternating current--what you get from a wall socket) electricity into the DC (direct current--what you get from a battery) electricity, and typical power supplies provide computers with both 5-volt and 12-volt DC power. Google's designs supply only 12-volt power, with the necessary conversions taking place on the motherboard."
>
> Gigabyte must be making a custom design for Google I'd imagine.
>
> kk
>
> -----Original Message-----
> From: ausnog-bounces at lists.ausnog.net [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of Bob Purdon
> Sent: Friday, 3 April 2009 1:23 PM
> To: Craig Askings; AusNOG at lists.ausnog.net
> Subject: Re: [AusNOG] CNET: Google uncloaks once-secret server
>
>
> Battery goes directly into the PSU, so presumably there's a charging
> circuit in there.  I'd expect this to work a lot like a 48VDC system,
> except at 12V.
>
> The only thing that isn't explained - at least for me - is where they're
> getting the 5V for the HDD's from (assuming the Hitachi Deskstar's
> actually require 5V).  They may have a small DC/DC converter under the
> HDD's for that though. 
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