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INSTALLATION GUIDE WD1004-27X WD1004A-27X Winchester Disk Controller Boards
FEBRUARY 1989
IDENTIFY DRIVE
The WD1004-27X and WD1004A-27X boards work with any hard disk drive that has the ST506/412 drive interface and no more than 1024 cylinders and 16 heads. The Seagate 238 hard disk drive unit is such a drive. Look in your drive manual to verify that you have an ST506/412 RLL drive or check with your dealer. Then check the drive manual for the drive parameters, such as those listed in Table 1-1. You'll need this information to select the proper low level format. Table 1-1. WD1004 and WD1004A Default Drive Parameters Formatted Number of Number of Sectors per Capacity Heads Cylinders Track 32MB 4 615 26
This board does not work with RLL drives.
WD1004-27x Datasheet
