VAX-11/730

Heinz Wolter h.wolter at sympatico.ca
Tue Apr 19 19:49:53 CDT 2005


I've been wondering about the possibility of hacking one of the memory
boards
- say from 16 to 64K drams or 64 to 256K. Is the microcode the  limitation
or memory controller/physical constraints/powersupply?
8 megs on my 725 would lovely...
h

> > The 11/730 (and 11/725) CPU rivals the MicroVAX-I for slowness (one is
> > 30% as fast as a 780, one is 40% as fast), but is a solid machine.  We
>
> It has one other advantage for people like me. It's one of only 2 series
> of VAXen (the other being the 11/780 + derivatives) that is built from
> standard chips. The 11/730 is mostly non-protected PALs, AMD2901s, etc.
> OK, there are _2_ custom chips, the ECC correcting logic IIRC, but most
> of it is hackable.
>
> If you don't have space for an 11/780, then the 11/730 (and its brother
> the 11/725) is about the only choice for a hardware hacker.
>
> -tony




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