[rescue] Looking for broken IPX system board or chips

[Dave McGuire]

   I didn't remember that being the case, but I think you're right.  I 
would say that's not 100% conclusive, but probably 99%. ;)

              -Dave

On 1/4/25 11:31, Michael Dombrowski wrote:
> My understanding is that the Weitek PowerUP CPUs are the same between 
> the SS2 and IPX
> mike
> 
> On Saturday, January 4, 2025 at 10:28:30 AM CST, Dave McGuire via rescue 
> <rescue at sunhelp.org> wrote:
> 
> 
> 
>    Are you certain the pinout etc is the same?  I'd definitely not risk
> it without hard info like datasheets or a schematic.
> 
>    I think if one could drop a 16-context SS2 IU into an IPX, a lot of
> us would've done it back in the day, but it's not something I've ever
> heard of.
> 
>                  -Dave
> 
> On 1/4/25 11:18, Ethan Hawke via rescue wrote:
>  > There were several compatible CPUs shared among the SS2/IPX systems
>  > (LSI, Cypress, Fujitsu and Weitek), the IPX had a slightly downgraded
>  > MMU (8 contexts vs 16) but is more or less the same, there shouldn't be
>  > any issue swapping CPUs between them.
>  >
>  > -Ethan
>  >
>  >
>  > On 5 January 2025 2:42:39 am AEDT, Dave McGuire via rescue
>  > <rescue at sunhelp.org <mailto:rescue at sunhelp.org>> wrote:
>  >
>  >
>  >    The SS2 and the IPX do not use the same CPU.
>  >
>  >    -Dave
>  >
>  >    On January 4, 2025 9:57:22 AM Todd Vernon via rescue
>  >    <rescue at sunhelp.org <mailto:rescue at sunhelp.org>> wrote:
>  >
>  >        I believe I have a spare SS2 board I bought just to harvest a
>  >        PowerUp CPU from and I have the CPU from another SS2 that I put
>  >        PowerUp chip into. Not sure they are same as the IPX.
>  >
>  >        If you determine they are I could sell you that bundle. Let me 
> know.
>  >
>  >        -t
>  >        
> ------------------------------------------------------------------------
>  >        Todd Vernon
>  >        Entrepreneur | Investor
>  >        Email: todd at toddvernon.com <mailto:todd at toddvernon.com>
>  >        LinkedIn: toddvernon
>  >        On Jan 4, 2025 at 5:30 AM -0700, Michael Dombrowski via rescue
>  >        <rescue at sunhelp.org <mailto:rescue at sunhelp.org>>, wrote:
>  >
>  >            I gambled and lost on an IPX with a low buy-it-now price:
>  >            the three main chips (GPU, Sparc, cache) have all been
>  >            pulled and I assume sold for $0.25 of gold. The rest of the
>  >            system seems to be in decent shape and I'm loath to just
>  >            throw this away. Anyone happen to have these three chips, or
>  >            more likely, an otherwise broken IPX system board that I
>  >            could harvest them from?
>  >
>  >            mike
>  >            
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>  >
>  >    --
>  >    Dave McGuire, AK4HZ
>  >    New Kensington, PA
> 
>  >    
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> 
> -- 
> Dave McGuire, AK4HZ
> New Kensington, PA
> 
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-- 
Dave McGuire, AK4HZ
New Kensington, PA