AMD64 X2

[Brooks Davis]

On Fri, Jul 01, 2005 at 09:53:27PM +0800, Jia-Shiun Li wrote:
> On 7/1/05, Guy Dawson <guy at crossflight.co.uk> wrote:
> > David O'Brien wrote:
> > > It really should be that simple.  All the external interfaces and pins
> > > are the same for Athlon64-939 and Athlon64 X2.  They have the same
> > > thermal specifications, etc...
> > 
> > It's the only way AMD could reasonably do it. To require a different
> > motherboard for X1 (?) and X2 chips would have the mobo makers rioting!
> 
> That's what Intel did. Requiring a new i945/i955-based board for their
> rushed dual-core CPUs. Only use the same socket but varied pin
> definition. If you put the new CPU on an i915 board, it will shutdown
> automatically to 'protect'. In contrast Athlon64 claimed to be
> designed with dual-core capability in mind from the beginning.

It is worth noting that some motherboard manufactures did produce boards
that don't work with dual core opterons.  In particular the Tyan K8SR
prior to rev-D doesn't work because they proview a couple too few watts
to the CPU sockets.

-- Brooks

-- 
Any statement of the form "X is the one, true Y" is FALSE.
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