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AST RESEARCH, INC.          SOFTWARE BULLETIN # 0154B               12-1-95

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			   Manhattan SMP System BIOS


Production Release: 1.06
Available: August, 1993

Release 1.06 of the Manhattan Flash BIOS Image provides the following 
problem resolutions and enhancements:

Enabled floppy FIFO.

Reduced the code size of BIOS by changing several long jump instructions to 
short jump ones.     


NOTE

Revision 1.06 is not posted to AST's On-Line forums because it requires a 
silicon upgrade to the Printed Circuit Board (PCB) assembly.  The upgrade 
can not be completed in the field.  For those customers requiring the fixes 
provided with revision 1.06, AST provides the 1.06 upgrade by exchanging 
the IOSM PCB.  Contact AST's Technical Support at (800) 727-1278 and 
request a Return Authorization Number (RAN).



Production Release: 1.05
Available: August, 1995

Release 1.05 of the Manhattan Flash BIOS Image provides the following 
problem resolutions and enhancements:


PROBLEMS RESOLVED

Changed the DMA burst mode to resolve a OS/2 overrun problem.

Changed the system information to report the correct CPU speed and type.


ENHANCEMENTS

Support for 60 ns SIMMs.

Support for the 256 MB memory board with the following features: 

   a. Allows different type of SIMMs to be plugged into the same memory 
      board.  The board sizes each bank of memory and configures hardware 
      accordingly.

   b. Allows both 64 MB and 256 MB memory boards to be plugged into the 
      same system with any order.

NOTE

Revision 1.05 is not posted to AST's On-Line forums because it is not 
compatible with all IOSM PCBs.  The upgrade requires a silicon upgrade to 
the Printed Circuit Board (PCB) assembly.  
The upgrade can not be completed in the field.  For those customers requiring 
the bug fixes, AST provides the 1.06 upgrade by exchanging the IOSM PCB.  
Contact AST's Technical Support at (800) 727-1278 and request a Return 
Authorization Number (RAN).



Production Release: 1.04
Available: August, 1993

Release 1.04 of the Manhattan Flash BIOS Image is the last official BIOS 
release for the Manhattan SMP that will be placed on AST's BBS.  File 
SMP21.EXE can be found on AST's BBS (817) 230-6850 in the Manhattan 
SMP section.  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

Revision 1.04 provides the following problem resolutions and enhancements:


PROBLEMS RESOLVED

When running with multiple CPU boards and executing two warm boot 
sequences with no cold boot in between, the system would hang during POST 
after the second warm boot.

Repaired a floppy drive type setting problem.  The floppy could not be set 
properly if the CMOS setting for floppy drives was out of range.


ENHANCEMENT

Provides support for the MPX Pentium processor board.



Production Release 1.03
Available March, 1993


ENHANCEMENT

This release includes internal system enhancements.


NOTE 

Release 1.03 of this software is located in the Manhattan SMP section of 
AST's BBS and is titled "SMP12.EXE".



Production Release 1.02
Available March, 1993


PROBLEM RESOLVED

Repaired a bug that caused the first key to be lost when entering a password.



Production Release 1.01
Available December, 1992


PROBLEM RESOLUTION

Repaired a bug that would not allow ROM setup to properly save the parallel 
port settings.



Production Release 1.00
Available November, 1992


DESCRIPTION

This is the first release of the BIOS for the Manhattan SMP computer.