NetNews Usenet Archive 1993 #3/NN_1993_3.iso/spool/comp/sys/mac/hardware/26568

Internet Message Format | 1993-01-21 | 1.6 KB

Xref: sparky comp.sys.mac.hardware:26568 comp.sys.mac.system:16489
Newsgroups: comp.sys.mac.hardware,comp.sys.mac.system
Path: sparky!uunet!gatech!concert!fns-nc1!dwj
From: mcnc!fns-nc1.fns.com!dwj (David W. Jarrett)
Subject: Performa 600 and RAM cache
Message-ID: <[e-mail]>
Sender: mcnc!fns-nc1.fns.com!dwj
Organization: Fujitsu Network Switching
Date: Wed, 20 Jan 93 17:07:13 GMT
Lines: 22

I just bought a Performa 600CD, and have a question about something I read on
it.  I know the Performa doesn't have a math coprocessor or a cache card.  The
former can be added, but the latter couldn't because "the Performa 600
does not support cache-enable -disable functions ..."  Can anyone explain
this?  Is this a hardware or software problem?  What I'm wondering is whether
I can replace System 7.1P with regular 7.1 (or 7.0.1* for that matter) and
get the ability to use a RAM cache card.  If so, the next question is whether a
RAM cache for a CI could be put in the 600: is the card dependent on the
system clock, would it fit the "accelerator slot" in the Performa, is this
the same as the non-Nubus slot in the vx, or are there other reasons why this
won't work, ...

These questions arise because I bought a Performa 600CD for $2300.  It's
performance is fine for home use, so there is no immediate need to speed it up.
However, it would be nice if I could bring it up to ci/vx performance for
less than the price of a vx (yes, I'm trying to get something for nothing).

Any help would be appreciated; respond via news or send e-mail to
[e-mail] (or the return listed in this posting).

David Jarrett