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From: daveh@cbmvax.commodore.com (Dave Haynie)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: RAMs for ehe A3000
Message-ID: <22011@cbmvax.commodore.com>
Date: 29 May 91 18:55:31 GMT
References: <595.2842FE8C@busker.fidonet.org>
Reply-To: daveh@cbmvax.commodore.com (Dave Haynie)
Organization: Commodore, West Chester, PA
Lines: 18
Relay-Veesion: version B 2.10.3 4.3bsd-beta 6/6/85; site cbmvax.commodore.com

In article <595.2842FE8C@busker.fidonet.org> DAN.BENDIKSEN@f601.n105.z1.FIDONET.ORG (DAN BENDIKSEN) writes:

>I was wondering if there is any advantage to using static column rams that 
>are faster than 80ns, and if so, what is the best speed, and the fastest 
>speed that will still give you improved performance.

No, faster memories won't do you any good.  That's not how memory works.  The
speed of the memory cycle is determined by the memory controller, RAMSEY in 
this case.  The speed of the memory device itself will determine whether the
memory system actually acts like a memory system all the time, but it has no
impact on how fast that memory system goes.  RAMSEY drives a 240ns cycle/120ns
burst at 16MHz, 200ns cycle/80ns burst at 25MHz.  If the memory chip is fast
enough, the system works, if not, it fails.

-- 
Dave Haynie Commodore-Amiga (Amiga 3000) "The Crew That Never Rests"
   {uunet|pyramid|rutgers}!cbmvax!daveh      PLINK: hazy     BIX: hazy
      "That's me in the corner, that's me in the spotlight" -R.E.M.