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- Newsgroups: comp.unix.aux
- Path: sparky!uunet!spool.mu.edu!agate!ames!nsisrv!jagubox!jim
- From: jim@jagubox.gsfc.nasa.gov (Jim Jagielski)
- Subject: Re: Mac II memory problems
- Message-ID: <1085@jagubox.gsfc.nasa.gov>
- Lines: 28
- Sender: usenet@nsisrv.gsfc.nasa.gov (Usenet)
- Nntp-Posting-Host: jagubox.gsfc.nasa.gov
- Reply-To: jim@jagubox.gsfc.nasa.gov (Jim Jagielski)
- Organization: NASA/Goddard Space Flight Center
- References: <9209091623.AA18744@eagle> <Conrad_Nobili-100992121441@c50mac5.harvard.edu>
- Date: Fri, 11 Sep 1992 09:55:26 GMT
-
- Conrad_Nobili@Harvard.EDU (Conrad C. Nobili) writes:
-
- >In article <9209091623.AA18744@eagle>, levan%eagle@EKU (Jerry LeVan) wrote:
-
- >> I have a Mac II with a 40mz 68030 accelerator and I do NOT
- >> have the high density floppy upgrade(just the standard 800k
- >> floppy).
-
- >Are you using the special SIMMs with the PAL in them?
-
- >> With four meg simms installed in bank b I have 20 meg of memory
- >> installed.
-
- >Shouldn't these be done the other way around? You want the higher density
- >SIMMs in bank A. (Although I was somewhat surprised to find yesterday that
- >my new IIci had the 5 megs it came with (from Apple) installed the "wrong"
- >way....) I don't think this matters much with MacOS, but I have heard
- >others say that A/UX is somewhat more picky about this....
-
- Actually, the MacII has a ROM bug that requires that Bank A be fully
- populated with either 256 or 1MB SIMMs before you can fill Bank B (some
- kinda RAM test problem I think). So BankA=1MB SIMMs, BankB=4MB SIMMs will
- work but not the reverse.
- --
- Jim Jagielski | "This is supposed to be a happy occasion.
- jim@jagubox.gsfc.nasa.gov | Let's not bicker and argue about who
- NASA/GSFC, Code 734.4 | killed who."
- Greenbelt, MD 20771 |
-