Last Revised
AST RESEARCH, INC.        TECHNICAL BULLETIN # 1733          06/25/97 
 
 
 
TITLE:  Mylex DAC960PL and Manhattan S Server
 
 
ISSUE 
 
   When a Mylex PCI DAC960PL Raid Controller is installed in a 
   Manhattan S series server running Windows NT, the operating 
   system will not see the second CPU. During the installation 
   process, the system will be identified as a standard PC instead 
   of the multiprocessor MPS system required for Windows NT to 
   recognize dual processors. 
   The Mylex 3.x firmware maps itself into a reserved memory space 
   used by the AMI BIOS, causing improper identification. 
   
   This issue affects the following systems : 501832, 503076, 
   503281, and 503282.    

 
BACKGROUND 
 
   N/A    

 
ACTION 
 
   Contact Mylex at (510) 608-2400 to obtain firmware version 2.38 
   as an interim fix. This firmware version is a single chip 
   replacement that  does not exhibit the reserved memory problem.
   
   WARNING: AST highly recommends that the user back up all system 
   drives prior to upgrading the MYLEX BIOS and firmware.    

 
NOTES 
 
   Mylex is currently working on a fix to the 3.X firmware.
   
   Contact Mylex for firmware replacement procedures and further 
   updates on issue.    

 
TAN 000510DG 
 
--------------------------------------------------------------------- 
The information in this data sheet is subject to change without  
notice. AST Research, Inc. shall not be liable for technical or  
editorial errors or omissions contained herein; nor for incidental or  
consequential damages resulting from the furnishing, performance,  
or use of this material. This material contains information protected  
by copyright. No part of this material may be reproduced in any form 
without prior written consent from AST Research, Inc.  
All rights reserved. 
--------------------------------------------------------------------- 
Template Rev 02