----- PB450M PCI PnP x1.0A Release notes (01/27/95) -----

        1. Fixed a bug that wasn't clearing the floppy perpendicular mode for
           drives other than 2.88M.  This fixes the floppy format problem 
           reported by PB Hong Kong.

        2. Fixed a floppy bug, for functions 1-5, that didn't return the 
           correct number of sectors in al, when the requested number of
           sectors was equal to the max number of sectors per track. 

        3. P24T Processor support added. (in Write-Thru Mode only)

        4. DX4 100 5V Processor support added.

        5. Set floppy default as A: 1.44MB and B: None.

	6. Fixed bug that was leaving video bios shadow ram 
	   unwrite-protected at boot.

	7. Modifed code to maintain previous PB450PC langauge support. 

           ----- PB450M PCI PnP x1.09 Release notes (10/12/94) -----

	1. Fixed bug that would display spurious characters accross
	   the screen instead of "100MHz" when a DX4 100 is installed.

           ----- PB450M PCI x1.08 Release notes (09/29/94) -----

        1. Set Cache Read 'Lead-off Cycle' Wait State Control
           to always be 3-X-X-X, no matter what the CPU type
           is.
	
	2. Fixed ZDS MKDSK.EXE problem #121.  
               
	3. Fixed Novell Certificaton Disk problem.

        4. When Floppy check is DISABLED in setup the
           following message is displayed by the BIOS.

                Autotyping adapter 0 master ... Autotype Failed

           After researching this problem, we found that only Western 
           Digital drives are failing post autotyping.  The reason that 
           only WD drives fail, is that they always reset the BUSY bit 
           immediately after a reset command; however, after the power
           up phase has completed they set the DRIVE READY bit.  This is 
           different than most other drives.  Usually the BUSY bit is reset 
           after the drive has spun up.  The reason that this problem occurs, 
           when Floppy check is DISABLED, is simply that the drive has not 
           had time to complete its power up by post autotyping.  We have 
           modified the BIOS to check both the BUSY bit and DRIVE READY bit.
           This will ensure that the drive will be recognized during post 
           autotyping. 

        5. During power up, the HDD post routine doesn't wait the
           required 30 seconds after a reset drive.

                This has been fixed.

        6. The HDD Landing Zone and Write Precomp are setup correctly
           during post auto typing.

           ----- PB450M PCI x1.07 Release notes (09/06/94) -----

        1. Post Auto type will fail non-existent drives
           quickly instead of waiting 20 seconds.  This is
           done by checking the alternate status register for
           FFh.

 	2. Fixed INT 13H Fn 00, 0D (Fixed Disk Reset)
	   to return only after drive is not Busy.

        3. First production release.