Re: Question about Sun Rem SCSI card

From: James MacPhail <gg__at_email.domain.hidden>
Date: Sat, 26 Jul 2008 22:40:41 -0700

>MW+1.0.18 and a Sun Rem SCSI card
>A 40MB SCSI harddisk was formated with OS7 on my Mac SE/30.

If you boot MW+1.0.18 (eg. from a floppy), it may be able to mount the SCSI disk, it depends on the driver installed on the disk. Some will not load properly with less than 4MB of RAM. For best results, use a formatter/driver from the Mac Plus era.

BTW, versions of MacWorks prior to ~ MW+II 2.3.0 cannot run System 7. MW+1.0.18 is good up to System 6.0.2

>Taking a look into the 2732 eprom, there is no program code in it.
>All datas are $00. Except address $0801 contining the value "1B"
>Is that correct ?

Sounds correct, though the address looks funny to me. The stock SCSI card ROM is only there so MW+ can identify the card.

>Therefore it seems the Sun Rem SCSI card is passive


>I wonder if Lisa can boot from a SCSI device.

Not usually: the Lisa predates SCSI, so the stock Lisa ROM has no idea what to do with it, and the stock SCSI card ROM has no code to execute.

Sun Remarketing expected you to load MW+ from a parallel port disk or from a floppy.

AFAIK, QuickBoot is the only way to "startup from" a SCSI drive... it replaces the stock SCSI card ROM:


For those new to this list, I have a financial interest in sales of QuickBoot, MW+II, the XLerator and the X/ProFile.

HTH, James

James MacPhail                   "Think not of engineering as art,
uo957_at_email.domain.hidden                 but of art as engineering"
Sigma Seven Systems Ltd.
james_at_email.domain.hidden        <>

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