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

[Sergey <skis...@gmail.com>]

Good. In this case I'd like to know who else will be interested in
making a backplane?

I'll start a separate thread to discuss this.

On Sep 25, 12:03 pm, "J. Alexander Jacocks" <jjac...@mac.com> wrote:
> Sergey,
>
> If I had the choice, I'd rather build the backplane.  It adds to the
> fun of the whole exercise.  :-)
>
> - Alex
>
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> On Tue, Sep 25, 2012 at 2:18 PM, Sergey <skis...@gmail.com> wrote:
> > 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 ?