http://www.codesrc.com/mediawiki/index.php?action=history&feed=atom&title=Mac_Plus 2026-05-04T21:57:22Z Revision history for this page on the wiki MediaWiki 1.42.7 http://www.codesrc.com/mediawiki/index.php?title=Mac_Plus&diff=468&oldid=prev 2017-08-10T10:06:06Z

<p>Created page with &quot;== SCSI2SD Support for Apple Macintosh Plus Plus == The Mac Plus is troublesome as it&#039;s bootrom code doesn&#039;t follow the SCSI standards. The SCSI standards recommend a SCSI se...&quot;</p> <p><b>New page</b></p><div>== SCSI2SD Support for Apple Macintosh Plus Plus ==<br /> <br /> The Mac Plus is troublesome as it&#039;s bootrom code doesn&#039;t follow the SCSI standards. The SCSI standards recommend a SCSI selection abort timeout of 250ms, but the Mac Plus bootroms quit before even 1ms has expired.<br /> <br /> # Make sure &quot;Enable Unit Attention&quot; is OFF<br /> # Change SCSI Selection Delay to 0<br /> # Enable &quot;Respond to short SCSI selection pulses&quot;</div>

Michael