Re: [N8VEM: 14713] Re: Xi 8088 - The improved version of my XT board

["J. Alexander Jacocks" <jjac...@mac.com>]

Sergey,

If I had the choice, I'd rather build the backplane.  It adds to the
fun of the whole exercise.  :-)

- Alex

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 ?