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- From: ricks@tcpbbs.pcn.org (Sports Sysop)
- Newsgroups: comp.sys.atari.st
- Subject: Re: 16 MHz / Overscan questions
- Message-ID: <oe2uPB1w164w@tcpbbs.pcn.org>
- Date: Fri, 21 Aug 92 10:14:23 EDT
- References: <1992Aug18.143241.5623@aston.ac.uk>
- Organization: TCP BBS, Cleveland, Ohio
- Lines: 50
-
- wrighttj@uhura.aston.ac.uk (Auntie Tim) writes:
-
- > Well, I'm contemplating squeezing some more hardware into the guts of
- > my ST and I wondered if anyone could give me some advice. The two
- > upgrades I'm currently considering are...
- >
- > A cheap accelerator board (probably 16 MHz 68000) which seem quite cheap,
- >
- > The PD Overscan mod, which seems incredibly cheap!
- >
- > The things I'm concerned with are mainly (1) performance and (2) compatibilit
- > with the software I'm using. Firstly, what kind of speed increase do you get
- > from the accelerator? Will it significantly speed up window drawing, number
- > crunching and the like? What performance do people get from things like
- > packed executables/ archives being uncompressed, ray tracing programs, screen
- > redraws and the like? Is it worth coughing up more cash for a 25Mhz or even
- > faster?
- >
- > Regarding Overscan, does it slow down the computer significantly when it's
- > running? If so, how much? There's also a hardware kit over here in the UK
- > called the "Autoswitch Overscan" which (I think) fits into the monitor
- > (Hi res) and costs 50 UK pounds- as I almost exclusively use Hi-res this
- > would be equally functional for me, so does anyone have experience of this?
- > Is it better/worse than the PD overscan hardware mod?
- >
- > Compatibility- I play a few games in colour, but presumably both these mods
- > can be deactivated so that shouldn't be a problem (should it?) but in hi res
- > I'm using (or planning on buying) Neodesk 3, Steinberg Cubase, Spectre GCR,
- > and numerous ray-tracers, graphics programs, and STOS. Anyone have any
- > experience of how these programs work with 16MHz / Overscan modes?
- >
- > Anyway, thanks for reading all this, If I get much feedback I'll post a
- > summary. Cheers...
- >
- > --
- > Tim Wright.
- > wrighttj@cs.aston.ac.uk
-
- I've had extemely good luck with ICD's AdSpeed. It seems to be compatible
- with everything in 16MHz mode except for the MiGraph handscanner (the Mega
- STe in 16MHz mode doesn't work either). But you can switch to 8MHz and
- everything is fine. With AdSpeed you can switch speed with software,
- keyboard or a mechanical switch if you want to add one in. The speed
- increase in graphics programs is nice. It also works very well with the
- Spectre GCR.
- If you have any other questions, please let me know.
-
- Rick Snevel
- B&G Electronics
- Cleveland, OH
-