    AST RESEARCH, INC.        TECHNICAL BULLETIN # 1530          7-19-96

    TITLE: Adv! 600/800 CD-ROM, HD Restore Diskette

    SUMMARY

       The Hard Disk Restore kit may not recognize the Torisan CD-ROM
       drive on the Advantage! 600 and 800 series.

       This issue only affects systems fitted with the Torisan CDR-S1G
       drive, and shipped with restore diskettes older than version 1.03
       (AST part number 912406-XXX).  The issue resides in the CD
       Autodetect program's index table.

    ISSUE

       After booting with the Hard Disk Restore diskette, the system may
       report the following messages:

          Device driver not found 'IDECD_00'
          No valid CDROM device driver selected.

          Drive Number=1
          No CD-ROM found

          Drive Number=2
          No CD-ROM found

          The CD-ROM drive is not responding or can not be identified!

          The software restore is INCOMPLETE.

    BACKGROUND

       The utility is not able to find Torisan CD-ROM drive with firmware
       2.15, with the embedded name:

          CD-ROM  CDR_S1G

       It is only able to detect earlier revisions of firmware 2.14 and
       older, where the name is CD-ROM CDR-S1G.

    ACTION

       Download the file 12406032.EXE from one of AST's On-Line! services
       as follows:

          AST WWW Site:  http://www.ast.com
          AST On-Line! BBS*:  See IB0001.TXT
          CompuServe:  GO: ASTFORUM
          Prodigy: Jump: astsupport

       * Refer to IB0001.TXT for a list of AST's international BBS
         numbers.

       To decompress this file, create a temporary directory on your
       hard drive, copy the downloaded file to that directory, and run
       the file.

    NOTES

       Systems carrying diskette part number 912591-XXX have been amended.

       The CDDATA.txt file on the Hard Disk Restore diskette has been
       modified to include the Torisan CD-ROM Drive Model CDR_S1G.

    TAN 000136KN

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