Available OS2 Drivers for RZ1000 Problem Motherboard, Version 1.9

   We have largely completed our investigation of various operating systems

   to determine if they were affected by this problem.  We have found no

   new OSs that are affected.



   IBM has completed work on the OS/2 patch and it is now available.



   We have developed a diagnostic utility which detects the presence of the

   RZ1000 chip. Further details are available in this message or at

   /procs/support/rz1000/ .



   There have been reports, on several usenet newsgroups of a problem with

   PCI computers that use the RZ1000 IDE controller. Motherboards that use

   this chip include Intel motherboards commonly known as Premiere or

   Plato, as well as non-Intel motherboards. The latest Intel motherboards

   which use the 82430FX PCI chipset do not use the RZ1000 chip and do not

   have this problem.



   This problem presents the potential for data corruption which could

   manifest itself as a misspelled word in a document, incorrect values or

   account balances in accounting software, unexplained GP faults when

   program execution reaches a corrupted instruction in the executable

   code, destruction of directory trees, or even corruption of an entire

   partition or drive.



   Most users of early PCI motherboard-based systems are unaffected by this

   problem because it is also dependent on the Operating System (OS), BIOS

   and the IDE hard disk driver and certain operations (e.g. simultaneous

   floppy and IDE hard drive accesses.) 



   Operating systems which are unaffected by this problem when run on Intel

   motherboards include:



        --  Win 95



        --  Win NT ver 3.5 and later  



        --  Win 2.x 



        --  DOS



        --  Win 3.x is unaffected when using 16-bit disk accesses.



        --  Win 3.x is unaffected when using any of the major 32-bit



   IDE Disk Drivers (Microsoft, Western Digital, OnTrack, MicoHouse):



        --  NetWare



        --  Unixware 2.01



        --  NEXTSTEP



        --  Banyan



        --  Solaris 2.4+



        --  SCO Unix 3.1+ 



   Affected operating systems included:



        --  OS/2 and WARP



        --  Win NT 3.1 and earlier versions



        --  LINUX 



   Operating systems affected by this problem can be worked around by

   updating the IDE hard disk device driver.  In the case of Win NT 3.1 a

   patch is available from Microsoft via the world wide web at:

   http://www.microsoft.com/KB/softlib.  The patch is called

   "PCIATDSK.EXE".



   IBM has completed its  work on an updated OS/2 driver. This patch is

   called APAR PJ19409 and is available via a number of IBM on-line

   services, including http://www.ibm.com.



   Intel is committed to ensuring that users of our products are satisfied.

   We have therefore taken the following steps to address the concerns we

   have seen on the various usenet groups:



        --  Fully characterize the problem.



        --  Frequently update the user community on our progress.



        --  Work with OS vendors to develop and distribute patches, as

   required.



        --  Develop a utility program to identify which systems are

   susceptible to this problem.



   The DOS detection utility program is now available and can downloaded

   from the Intel Web site, at /.  This detection

   program will verify the presence of RZ1000 chips.



   Intel Corp.