Software and Hardware for RISC OS and Acorn computer systems
APDL Turbo processor upgrade
- Do you have a Strong ARM RiscPC?
- Would you like a 20 to 25 percent speed increase?
- Would you be prepared to pay around £50?
If the answer to these is 'yes' then we may be able to help.
![Turbo processor](images/turbo.jpg)
This is primarily a part exchange processor
upgrade for any Strong ARM RiscPC, although we can also supply
new Revision T Turbo processors with or without
part-exchange. It has a boosted clock rate and other modifications to
increase speed. This method of improving performance has been widely
used by enthusiasts, and the Turbo 287 can give a speed increase of
between 15 and 30 percent depending on the type of program being
run.
Most users are naturally apprehensive about carrying out this type of
work. There is the possibility that the processor could be damaged as
not all will work reliably at high speed, leaving you with a dead
computer and a bill for about £250 for a new Strong ARM.
The APDL Turbo upgrade removes the risk of running a fast processor.
Your Turbo processor upgrade is fully guaranteed for one year so we
carry the risk. In addition if you need to have your computer repaired
during this time and want to ensure that it has a standard processor
while repairs are carried out we will arrange to lend you a standard
Strong ARM processor for a short period for only a very small charge to
cover expenses.
We can usually arrange to send you your new Turbo Processor and then,
once you have fitted it and made sure that everything is working
properly, you return your old Strong ARM to us. This means you aren't
without your computer while your processor is upgraded.
Some comments from users.
"The 287-T installed in a RISC OS 4.02 machine has a truly
incredible performance."
David Coppen
"... things I did measure showed improvements from about
4pc to 55pc."
"My greatest satisfaction came from Fireworkz. RiScript also seems
to buzz. e.g. loading the Oregano manual and rendering their front page
pic improved by 38.5pc."
Barrie McElroy
"If I were living state-side, I'd be tempted to describe the
APDL upgrade as a 'no-brainer' - that is to say that the decision is
very simple."
"... for a very small outlay you get a noticeable speed increase. After several years
of owning a 200 or 233Mhz processor, this is a simple and effective
method of rejuvenating your system without resorting to feeding it viagra!"
Andrew Rawnsley
Types of upgrade
The Turbo upgrade is supplied in three versions -
- Turbo 257 - 257 Mhz upgrade from S/ARM 202 Mhz
- Turbo 276 - 276 Mhz upgrade from S/ARM 202 or 233 Mhz
- Turbo 287 - 287 Mhz upgrade from S/ARM 202 Mhz
Prices are -
- Turbo 257 - £29
- Turbo 276 - £39
- Turbo 287 - £49
Prices include VAT. Just add £3.50 to cover UK carriage.
Turbo specials with Rev. T processor
Exchange your old 202 or 233 Mhz processor card for a brand
new Revision 'T' Turbo Strong ARM from just £129
plus carriage. All the speed of the Turbo upgrade plus the
latest processor that supports lazy task switching with RISC OS 4.
- Turbo 276-T - 276 Mhz Rev.T upgrade from S/ARM 202 or 233 Mhz - £129
- Turbo 287-T - 287 Mhz Rev.T upgrade from S/ARM 202 or 233 Mhz - £149
Need an OS upgrade as well? We can supply a Revision T Turbo processor complete with RISC OS 4
- Turbo 276-T - 276 Mhz Rev.T from S/ARM 202 or 233 plus RISC OS 4 - £199
- Turbo 287-T - 287 Mhz Rev.T from S/ARM 202 or 233 plus RISC OS 4 - £219
Prices include VAT. Just add £3.50 to cover UK carriage. When
purchasing a Turbo-T plus RO4 upgrade you must also return your RISC OS
3.7 ROMs.
Don't already have a Strong ARM? We can supply new Turbo Rev T or Rev K processors. You will need RISC OS 3.7 or 4
- Turbo 276-T - new 276 Mhz Rev. T (purchase, no exch.) - £229
- Turbo 287-T - new 287 Mhz Rev. T (purchase, no exch.) - £249
- Turbo 276-T - 276 Mhz Rev.T plus RISC OS 4 (purchase, no exch.) - £289
- Turbo 287-T - 287 Mhz Rev.T plus RISC OS 4 (purchase, no exch.) - £309
- Turbo 276-K - 276 Mhz Rev. K (purchase, no exch.) - £179
- Turbo 287-K - 287 Mhz Rev. K (purchase, no exch.) - £199
We can usually supply RISC OS 3.7 ROMs if you do not already have RO 3.7 or RO 4.
276-K and 287-K processors not always available. Please contact APDL before ordering
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