Re: accelerate/turboing the ti-92?


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Re: accelerate/turboing the ti-92?



Reinier Zwitserloot wrote:

> The acceleration that is commonly referred to when talking about the
> Z80s
> in the TI8x series is by 'overclocking'. historic examples of
> overclocked
> chips:
>
> The pentium 66 Mhz chips out there. Some of them where actually real
> misnomers, they had a plain old (buggy at the time) intel Pentium 60
> Mhz
> chip in them. (confusion often caused by the designer: 60 Mhz? but
> that's
> lower than the dx2! must be 66.) However, most of these 66Mhz Pentiums
> were
> overclocked 60s. overclocking 6Mhz won't do much damage, but truth is,
> you
> are burning your chip to speeds it can't stand. the peoples at intel
> do
> some very precise testing to figger out exactly how much a chip can
> handle.
> (In fact, you can take a p75, and overclock it to 166. I doubt it
> would
> last more than 2 minutes before it goes, thou.).
>

To tell the truth, I've had my Pentium 75 overclocked to 120 MHz for
about a year now.

> In the TI8x series, someone overclocked their CPU. It's a lot easier
> in
> them, because you merely have to rip out a capacitator that catching
> some
> of the pulses. At this moment, no adverse effects of overclocking TI's
> has
> been found. However, due to the heavy increase in speed, I wonder why
> TI
> put in those cacacitators.. Anyway, DUALCLOCKING, which is what you
> are
> referring to, has never been tried on TIs. It would probably be
> possible,
> but there isn't a lot of space in that thing, and it would probably
> turn
> out to be waay too expensive.
>

They put in those capacitors is because over clocking your calculator
eats batteries.  TI put in capacitors to give the batteries in the
calculator more life at the cost of some speed.

Todd

> --
> -R.Zwitserloot@BTInternet.com
>
> Robert Kidd <rkidd@abelink.com> wrote in article
> <866235476mnewsrkidd@abelink.com>...
> >
> > >
> > >
> > > The TI-81 & TI-85 can be turboed by changing the C9 capacitor.
> > > The TI-82 & TI-83 can be turboed by changing the C6 capacitor.
> > >
> > > But I was wondering if anyone knows how to speed up a TI-92 (NOT
> 82)!
> Any
> > > information on it is appreciated.
> > > .
> > I don't know about changing a capacitor, but you could theoretically
>
> build an
> > accelerator for one with a different processor.  At shareware.com,
> search
> for
> > accelerator plans in the Amiga section.  There are plans to double
> the
> clock
> > speed which you might be able to adapt.  Of course, if you wanted to
>
> really get
> > ambitious, you could design one that used a 68020 and fitted over
> the
> 68000
> > (This has been done on the Amiga) or build one with a 66 MHz 68060
> and 16
> megs
> > of ram :-)
> >
> > Robert Kidd
> >
> >
> >


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