Subject: Re: Sirius Ram and ROM 00 Question . . . .
Path: lobby!newstf02.news.aol.com!audrey01.news.aol.com!not-for-mail
From: supertimer@aol.com (Supertimer)
Newsgroups: comp.sys.apple2
Lines: 26
NNTP-Posting-Host: ladder05.news.aol.com
X-Admin: news@aol.com
Date: 28 Apr 1999 05:49:20 GMT
Organization: AOL http://www.aol.com
References: <7g27r9$oeo$1@nnrp1.dejanews.com>
Message-ID: <19990428014920.03217.00000342@ng08.aol.com>



hubble1@my-dejanews.com wrote:

>I have an older GS which boots up with a ROM 01 message, but
>it only has 256K of built-in RAM.  Is this what I have heard
>referred to as a ROM 00 GS?

No, you have a ROM 01.  The message is right.  If you have
ROM 00, you won't be able to run GS/OS.

>Also, I recently purchased a Sirius RAM card with 8 megs.
>There is a dip switch setting to choose between "1024K" and
>"256K".  The documentation for the Sirius only lists
>configurations for 1 or 2 megs when that switch is set to
>256K.  Setting up the dip switches for 1024K and 8 megs on
>the card resulted in the system hanging just prior to
>reaching the finder when booting a GS/OS 6.0.1 floppy.
>
>Is my particular GS ROM incapable of supporting more than
>2 megs of additional RAM?

Your IIGS should work with 8 megs fine.  Try shift-booting
to see if you have a software conflict.  If not, do you by any
chance have an Apple High Speed SCSI card or the older
(Rev. C) RamFAST card?  If so, you'll need to turn off DMA
on the card.  Only the RamFAST Rev. D cards can DMA to
more than 4MB on a ROM 01 (more than 5MB on a ROM 3).