[TriLUG] Uh-oh: hardware question: IBM VRM

[Bill Geschwind]

If you add an additional processor to an IBM server, you will need to add a
corresponding Voltage Regulator Module (VRM), which is a device that ensures
that the processor will get the correct amount of regulated power, and
without which the system shouldn't be able to run or the processor could be
severely damaged.

The document that says that the part number has changed from ...01 to ...02
is fairly recent (8/10/05;
http://www-1.ibm.com/support/docview.wss?uid=psg1MIGR-56233), considering
which I would find it hard to believe that IBM is not able to sell you a
part that would work for you. Searching for specific parts on their web site
can be frustrating, and once before when I ran into a similar problem I
called them and they were able to get me the part I needed. Have you tried
calling them at 1-888-SHOP-IBM?

Good Luck!

________________
 
Bill Geschwind
ITS Distributed Systems, Server Farm
Carr Mill Annex, Suite G6
Phone: 698-8245
Pager: 216-1481
Email: geschwin at email.unc.edu
 
 
-----Original Message-----
From: trilug-bounces at trilug.org [mailto:trilug-bounces at trilug.org] On Behalf
Of Andrew Perrin
Sent: Thursday, October 27, 2005 4:00 PM
To: trilug at trilug.org
Subject: [TriLUG] Uh-oh: hardware question: IBM VRM

Folks, I'm afraid I'm in over my head and am hoping someone can bail me
out.

I bought an IBM xSeries 226 server and am souping it up for use in some
number crunching.  One of my "innovations" was to buy a second CPU for it:
an Intel Xeon 2.8Ghz processor, exactly the same as the one that came with
it.

Problem, though: apparently I have to insert a Voltage Regulator Module
(VRM) in order to enable the second processor. I have no idea what such a
thing is or how I get one, and they're apparently not available from IBM,
since the part is 24R2701 or ...02 and nothing comes up on the website
when I search for that.

So, can anyone tell me what a VRM is and how I can get one?

Thanks-
Andy

----------------------------------------------------------------------
Andrew J Perrin - http://www.unc.edu/~aperrin
Assistant Professor of Sociology, U of North Carolina, Chapel Hill
clists at perrin.socsci.unc.edu * andrew_perrin (at) unc.edu

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