    =

    AST RESEARCH, INC.          TECHNICAL BULLETIN # 1237               6-27-95

    =

    	   DPT 2012B SCSI DRIVER DETECTED A CONTROLLER ERROR WHILE RUNNING
    					    WINDOWS NT SERVER 3.5

    PROBLEM

    The Distributed Processing Technology (DPT) PM 2012B SCSI driver detected a
    controller error on \device\scsiport0 while running Windows NT Server 3.5.
    The occurrence frequency of this error is directly related to the amount of
    hard disk activity.

    Controller: DPT #230193-004 PM2012b V003.G   4.5MB memory.
    Hard Drive: Quantum Empire Series 230135-132 1 GB.

    SYSTEMS AFFECTED
    AST PART NUMBER AND DESCRIPTION

    500999-XXX      Premium SE 4-66D

    230193-004 DPT PM2012b V003.G   4.5MB memory
    230135-132 1GB Quantum Empire Series

    SOLUTION

    Both steps one and two are required to fix the problem.

    1. Use the latest DPT Windows NT 3.5 driver "1JM".
    The current DPT Windows NT v3.5 driver, file name NT351JM.XIP, can be
    downloaded from DPT's BBS (407) 831-6432, Directory #6 SmartDrivers.
    The DPT BBS telephone number can also be found in the DPT User's Manual.

    2. Upgrade Quantum Empire 1GB, 1080s hard drives to the latest AST
    approved firmware 1220.

    The 1220 Quantum firmware, QFLASHJD.EXE, can be accessed from AST BBS.
    Download the self-extracting file QFLASHJD.EXE from AST's BBS and follow
    the README instructions.

    File QFLASHJD.EXE can be found on AST's BBS (817) 230-6850, in the "Systems"
    file area.  AST's BBS supports modem speeds up to 28.8k bps.
    The above file will also be posted on:

    CompuServe
    Go ASTSUPPORT

    AST Worldwide Web Site
    http://www.ast.com

    For further information, see Technical Bulletin # 1161 in the TBS library
    section of AST's BBS.