<html><head></head><body><div dir="auto">The contexts are part of the MMU+ chip, not the IU+FPU. Even then, the chip is the same in the SS2/IPX, just configured differently. I'm confident the CPUs are interchangeable.<br><br>-Ethan </div><br><br><div class="gmail_quote"><div dir="auto">On 5 January 2025 3:27:16 am AEDT, Dave McGuire via rescue <rescue@sunhelp.org> wrote:</div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<pre class="k9mail"><div dir="auto"><br> Are you certain the pinout etc is the same? I'd definitely not risk it without hard info like datasheets or a schematic.<br><br> 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.<br><br> -Dave<br><br>On 1/4/25 11:18, Ethan Hawke via rescue wrote:<br></div><blockquote class="gmail_quote" style="margin: 0pt 0pt 1ex 0.8ex; border-left: 1px solid #729fcf; padding-left: 1ex;"><div dir="auto">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.<br><br>-Ethan<br><br><br>On 5 January 2025 2:42:39 am AEDT, Dave McGuire via rescue <rescue@sunhelp.org> wrote:<br><br><br> The SS2 and the IPX do not use the same CPU.<br><br> -Dave<br><br> On January 4, 2025 9:57:22 AM Todd Vernon via rescue<br> <rescue@sunhelp.org> wrote:<br><br> I believe I have a spare SS2 board I bought just to harvest a<br> PowerUp CPU from and I have the CPU from another SS2 that I put<br> PowerUp chip into. Not sure they are same as the IPX.<br><br> If you determine they are I could sell you that bundle. Let me know.<br><br> -t<hr> Todd Vernon<br> Entrepreneur | Investor<br> Email: todd@toddvernon.com<br> LinkedIn: toddvernon<br> On Jan 4, 2025 at 5:30 AM -0700, Michael Dombrowski via rescue<br> <rescue@sunhelp.org>, wrote:<br><br> I gambled and lost on an IPX with a low buy-it-now price:<br> the three main chips (GPU, Sparc, cache) have all been<br> pulled and I assume sold for $0.25 of gold. The rest of the<br> system seems to be in decent shape and I'm loath to just<br> throw this away. Anyone happen to have these three chips, or<br> more likely, an otherwise broken IPX system board that I<br> could harvest them from?<br><br> mike<hr> rescue list -<br> <a href="http://sunhelp.org/mailman/listinfo/rescue_sunhelp.org">http://sunhelp.org/mailman/listinfo/rescue_sunhelp.org</a><br> <<a href="http://sunhelp.org/mailman/listinfo/rescue_sunhelp.org">http://sunhelp.org/mailman/listinfo/rescue_sunhelp.org</a>><hr> rescue list -<br> <a href="http://sunhelp.org/mailman/listinfo/rescue_sunhelp.org">http://sunhelp.org/mailman/listinfo/rescue_sunhelp.org</a><br> <<a href="http://sunhelp.org/mailman/listinfo/rescue_sunhelp.org">http://sunhelp.org/mailman/listinfo/rescue_sunhelp.org</a>><br><br><br><br> --<br> Dave McGuire, AK4HZ<br> New Kensington, PA<hr> rescue list - <a href="http://sunhelp.org/mailman/listinfo/rescue_sunhelp.org">http://sunhelp.org/mailman/listinfo/rescue_sunhelp.org</a><br> <<a href="http://sunhelp.org/mailman/listinfo/rescue_sunhelp.org">http://sunhelp.org/mailman/listinfo/rescue_sunhelp.org</a>><hr>rescue list - <a href="http://sunhelp.org/mailman/listinfo/rescue_sunhelp.org">http://sunhelp.org/mailman/listinfo/rescue_sunhelp.org</a><br></div></blockquote><div dir="auto"><br><br></div></pre></blockquote></div></body></html>