On Wed, Feb 22, 2006 at 12:50:57PM +0000, Julian Coleman wrote:
> > The 8meg VSIMM in the slot closest to the CPUs (seems) to make
> > the MBUS run at 40mhz, so the sbus runs at 20mhz.
> > 
> > If I move the VSIMM to the slot furthest from the CPUs 
> > and closest to the front of the system then the MBUS runs
> > at 50mhz and the sbus runs at 25mhz.  On systems this 
> > slow every little bit helps.
> > 
> > Surely that was documented somewhere...
> 
> There is the "SPARCstation 20 DSIMM/VSIMM Installation Guide" at:
> 
>   http://sunsolve.sun.com/data/801/801-6185/pdf/
> 
> This mentions that the rear slot is for the 2nd SX and the front one for
> the 1st SX.  You need a special adapter to bring the connector for the
> 2nd slot through one of the rear (SBUS) slots.  Note that you can have
> the SX in the front slot and put DSIMM's in the other 7.
> 

Thanks very much!

cheers

bruce


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