IBM VRMs (was: [rescue] Netra 1100/1400 => 1105/1405?)

[Ken Hansen]

I am using a PII VRM in my PProCompaq - the difference is the current levels
supported by the VRM - I think the voltages are the same...

Ken

----- Original Message -----
From: "Greg A. Woods" <woods at weird.com>
To: <rescue at sunhelp.org>
Sent: Sunday, August 26, 2001 1:56 PM
Subject: Re: IBM VRMs (was: [rescue] Netra 1100/1400 => 1105/1405?)


> [ On Sunday, August 26, 2001 at 10:45:49 (-0400), G W Adkins wrote: ]
> > Subject: Re: IBM VRMs (was: [rescue] Netra 1100/1400 => 1105/1405?)
> >
> > Probably not, a VRM is a DC/DC converter which supplies the core
voltages
> > for the CPU, unless you have the VID senseng, autoranging VRM's (2 pc
boards
> > thick) the ones you have are probably for the PPro core voltages (3.3 or
> > 3.2V)
>
> The VRM for the newer models of PC Server 325 (i.e. the P-II series)
> seem to work with all supported P-II's as there only seems to be one
> model of VRM for P-II 266 through P-II 333.  I'm not sure if that's
> because those particular P-II's all use the same core voltage, or if the
> VRM actually does have VID sensing.  It seems to have some non-basic
> multi-pin surface mount chips and lots of other discrete parts, and has
> lots of pins on a dual-inline header to plug into, but it's not much
> bigger than any old-fashioned PPro VRM.
>
> --
> Greg A. Woods
>
> +1 416 218-0098      VE3TCP      <gwoods at acm.org>     <woods at robohack.ca>
> Planix, Inc. <woods at planix.com>;   Secrets of the Weird <woods at weird.com>
> _______________________________________________
> rescue maillist  -  rescue at sunhelp.org
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