home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: comp.os.os9
- Path: sparky!uunet!gatech!taco!garfield.catt.ncsu.edu!kdarling
- From: kdarling@garfield.catt.ncsu.edu (Kevin Darling)
- Subject: Re: MM1
- Message-ID: <kdarling.712301201@garfield.catt.ncsu.edu>
- Keywords: MM/2 68030(i think) nope (kd)
- Lines: 25
- Sender: news@ncsu.edu (USENET News System)
- Organization: North Carolina State University
- References: <James_Matson.05v2@abcd.Houghton.MI.US> <27@emtwo.UUCP>
- Date: Tue, 28 Jul 1992 05:26:41 GMT
-
- Paul M Fitch writes:
- > I own an MM/1. The Basic system includes the palette chip. They had to
- > redesign the backplane board, to handle timing differences between 1MEG
- > and 4Meg simms, but that is ( I think) extra<g>.
-
- It's ~$90 for the replacement backplane which has sockets for two 4meg SIMMs.
- The original sockets were designed to meet prelim 4meg specs (before chips
- became available), but the chips changed after final board production began.
- I hear that Apple and other computer makers ran into the same thing.
-
- > Kevin Darling has had a 68030 system since last years AtlantaFest, and
- > Paul Ward has talked 'hush-hush' about plans for a 68030 MM/2 system.
- > The 68030 system KD had/has did NOT have a VSC graphic chip on it.
-
- The 030 card doesn't, but I still have an old VSC/audio card in that box.
- However, its only relationship to the MM/1 is that it originally had an 070
- cpu card, and the first VSC software was developed on it... so it's not an
- MM/2 prototype. More like a one-off upgraded MM/1 prototype, if even that.
-
- I think the most likely next step will be to take care of all the current
- MM/1 owners by offering some kind of inexpensive cpu upgrade, probably to
- a 68340 (~3 times as fast as a current expanded MM/1 070 system, according
- to tests done on that 68340 demo'd at the last CoCo fest; plus nicer DMA).
-
- best - kevin <kdarling@catt.ncsu.edu> <76703.4227@compuserve.com>
-