Path: utzoo!utgpu!cunews!bnrgate!brtph3!brchh104!brchs1!bnr.ca!rice.edu!sun-spots-request
From: moldev!geo@uunet.uu.net (George Pontis)
Newsgroups: comp.sys.sun
Subject: 3/60 & 3/80 hardware speedup query
Keywords: Hardware
Message-ID: <728@brchh104.bnr.ca>
Date: 9 Dec 90 22:53:59 GMT
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When Sun shipped 3/80 workstations, it was with 100nS SIMMs. I don't
remember for certain, but 3/60 workstations may have even had 120nS SIMMs.
To make everything work reliably this would have necessitated quite a few
wait states on any memory access. Especially so with the 3/80, which
doesn't have the external cache of the 3/60.

So ... it seems that with the cheap 70ns and 80ns SIMMs that are now
available a workstation could run somewhat faster if the number of waits
were reduced to reflect the higher performance RAM.

Does anybody know if it is possible to make a simple hardware change that
will reduce the number of wait states ?

George Pontis ( geo@moldev.com )