Re: Xi 8088 - The improved version of my XT board

[roman fulek <roman...@gmail.com>]

Hello Sergey

Thanks. I am more interested in the original "slowness" of PC/XT rather than getting high speeds. If it is really only slightly faster compared to original then I am in for it. I will definitely want an ISA backplane for ATX case too. That's wonderfull idea.

Roman

Dňa utorok, 25. septembra 2012 20:18:27 UTC+2 Sergey napísal(-a):
> Roman,
>
> It will be slightly faster even on standard 4.77 MHz because SRAM
> doesn't need to be refreshed, and so it saves some DMA cycles. But
> other than that this board support turbo mode, so if you have fast
> 8088 or V20 CPU you can run it on higher frequency. I was able to run
> it (the previous version) on 13.33MHz with V20HL CPU.
>
> Not sure if they Acqutek sells boards to individuals (I would assume
> so, why not :-). But if they don't there are a lot of other places to
> find ISA backplanes. Or maybe even construct one yourself.
>
> If it will be a demand for backplanes, I'll consider designing a Micro
> ATX sized backplane with 6 slots or so (I have to check how many slots
> it will fit). But I don't think it will be cheaper to make one than to
> buy one (say $30 for the PCB, $1.5 for each ISA connector, few dollars
> for other components, so about $45).
>
> Thanks,
> Sergey
>
> On Sep 25, 10:45 am, roman fulek <roman...@gmail.com> wrote:
> > Sergey, will this board perform faster than original XT at the same clock
> > frequency because of SRAMs ? Does Acqutek sell ISA backplanes to home
> > bilders too ?