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Article #538Re: Up-ing the Speed of My A310.
From: Graham Allan
Date: Wed, 18 Nov 1992 03:57
Date: Wed, 18 Nov 1992 03:57
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In article <smiths.722004482@p4.cs.man.ac.uk> smiths@p4.cs.man.ac.uk (Little SteeeveS) writes: >A few months ago there was a lot of talk in this group of increasing > the speed of A310's by replacing the RAM and using a faster crystal > to clock the machine. > >Last Christmas I upgraded my machine to 4Megs (by Craddock Ltd ) and so > I find myself thinking on these lines... >In a 4 meg upgrade I believe the old RAM is discarded and completely replaced. Therefore this 4meg is quite modern RAM. Is it therfore capable of going faster? >i.e. can I whip out my 8MHz crystal and replace it with a 12Mhz one? ( I assume the new Riscos 3 ROMS will survive this but will the new RAM). I think you can't do this, because the I/O in the machine still has to run at 8MHz. The newer machines (A5000, A540) have extra circuitry to synchronise the 12MHz memory with 8MHz I/O. (Or something along those lines...) Graham allan@mnhep8.hep.umn.edu
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Newsgroups: comp.sys.acorn.tech Path: arc1-ca.pugleaf.net!sparky!uunet!charon.amdahl.com!pacbell.com!ames!agate!spool.mu.edu!umn.edu!student.tc.umn.edu!alla0008 From: alla0008@student.tc.umn.edu (Graham Allan) Subject: Re: Up-ing the Speed of My A310. Message-ID: <1992Nov18.035745.23799@news2.cis.umn.edu> Sender: news@news2.cis.umn.edu (Usenet News Administration) Nntp-Posting-Host: student.tc.umn.edu Organization: University of Minnesota References: <smiths.722004482@p4.cs.man.ac.uk> Date: Wed, 18 Nov 1992 03:57:45 GMT Lines: 17