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Want to move to all 208V for server racks

Subject: Want to move to all 208V for server racks
From: joelja at bogus.com (Joel Jaeggli)
Date: Fri, 3 Dec 2010 19:18:55 -0800
In-reply-to: <91470.1291424330@localhost>
References: <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <AF24AE2D4A4D334FB9B667985E2AE7637AC790@mail1-sea.office.spectrumnet.us> <[email protected]> <[email protected]> <91470.1291424330@localhost>

On Dec 3, 2010, at 16:58, Valdis.Kletnieks at vt.edu wrote:

> On Fri, 03 Dec 2010 13:21:07 PST, Matthew Petach said:
>> People are still feeding their gear with AC?  Save on PS inefficiency,
>> and feed direct 12/5vDC to the servers.  Save space, save power,
>> save cooling.
> 
> What does that do to customer equipment choices?  I've got a quarter acre of
> boxes that I know want 12/5vDC inside the case, but that's not an easily
> available option from the vendor - most of the time the only option is
> autoswitching 120-240DC with your choice of power cables.
> 
The 10,000amp bus for the 12v feed for a row of server racks would be a thing to behold. I don't think anyone but Paul Wall has seriously considered this.

> (If anybody has a good TCO analysis for doing this with Dell/Sun/IBM/Apple
> servers, I'm willing to listen...)
>

Follow-Ups:
- Want to move to all 208V for server racks
  - From: mpetach at netflight.com (Matthew Petach)

References:
- Want to move to all 208V for server racks
  - From: bicknell at ufp.org (Leo Bicknell)
- Want to move to all 208V for server racks
  - From: owen at delong.com (Owen DeLong)
- Want to move to all 208V for server racks
  - From: toasty at dragondata.com (Kevin Day)
- Want to move to all 208V for server racks
  - From: if at xip.at (Ingo Flaschberger)
- Want to move to all 208V for server racks
  - From: toasty at dragondata.com (Kevin Day)
- Want to move to all 208V for server racks
  - From: if at xip.at (Ingo Flaschberger)
- Want to move to all 208V for server racks
  - From: toasty at dragondata.com (Kevin Day)
- Want to move to all 208V for server racks
  - From: jfbeam at gmail.com (Ricky Beam)
- Want to move to all 208V for server racks
  - From: nathan at robotics.net (Nathan Stratton)
- Want to move to all 208V for server racks
  - From: jfbeam at gmail.com (Ricky Beam)
- Want to move to all 208V for server racks
  - From: cmadams at hiwaay.net (Chris Adams)
- Want to move to all 208V for server racks
  - From: jvanoppen at spectrumnet.us (John van Oppen)
- Want to move to all 208V for server racks
  - From: alex at corp.nac.net (Alex Rubenstein)
- Want to move to all 208V for server racks
  - From: mpetach at netflight.com (Matthew Petach)
- Want to move to all 208V for server racks
  - From: Valdis.Kletnieks at vt.edu (Valdis.Kletnieks at vt.edu)

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