README - WDATA66


PROGRAM SUMMARY:

    This program searches for and verifies the Ultra ATA/66 capability of 
    specific Western Digital hard drives. If the drive is Ultra ATA/66 capable 
    you can enable or disable this feature with this utility.
    


TO RUN THE PROGRAM:

    BACK UP DATA: Before running the program, it is recommended that
    users back up all data for all hard drives. The WDATA66 test 
    does not overwrite any data on the drives and if used properly 
    should not result in data loss, but the regular backing up of 
    data is always recommended. 

    STORE THE PROGRAM ON FLOPPY DRIVE: The program must be run
    from a floppy drive, so copy the file WDDIAG.EXE to a formatted 
    bootable floppy diskette in A:.


    
    ENABLING ULTRA ATA/66 CAPABILITY: 
    All of the following conditions must be met before your system will be
    able to utilize Ultra ATA/66:
   	1.  Your host system must support Ultra ATA/66 (Motherboard chipset, 
	    BIOS or add in Controller Card).
	2.  A 40 Pin, 80 conductor cable must be attached between the host
     	    system and the hard drive.
	3.  Your operating must be enabled for DMA transfers
	4.  Your hard drive must support Ultra ATA/66 and this capability must 
	    be enabled.

    START THE PROGRAM: To start the program, type WDATA66 at the
    DOS prompt, A:\WDATA66.
   
    SELECT A DRIVE: 
    You can 'Select a Drive' by using the up/down arrow keys to highlight
    a specific drive.  The utility will tell you if the drives detected are
    'capable' of Ultra ATA/66 and if that feature is 'enabled'.  Hit enter to
    select a drive and then type <y> to enable or disable the feature on 
    supported drives. 

    The WDATA66 utility will support and recognize up to 8 hard drives.

    Enabling or disabling this feature on a selected drive can take up to 
    30 seconds.  When the changes have been performed,  the 'enabled' status
    message will change from "yes" to "no" or vice versa. You can select another
    drive or hit <F10> to exit the utility.
   

    In order for the changes to take effect you must cycle power on your computer.
    A <ctrl - alt - del> or warm boot/reset WILL NOT make the changes effective.
    To cycle power,  turn off your computer,  wait 30 seconds and then power up.

TO CONTACT WD:

      In some cases the user may be requested to contact Western 
      Digital Technical Support. You may contact Western Digital
      Technical Support at www.westerndigital.com or at (949) 932-4900 or 
      (800) 275-4932 in the U.S., or (31) 20.446.7651 in Europe, or 
      consult your drive manual for further information. Alternately, 
      you may contact the OEM or its warranty service provider who can 
      support your needs.