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

[Greg A. Woods]

[ 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

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