Product Support Bulletin
Subject:
Equity II+, Ill + and 386/20 Compatibility with New Western Digital
Hard Disk Controllers
Date: 9/8/89
PSB No:
S-0101
Page: 1 of 1
Originator:
PNM
Western Digital has introduced a new series of 16 - bit hard disk controllers
that replaces the models previously certified for use in our Equity Series
computers. This bulletin reports on the compatibility of the new model
controllers in our 80286 - and 80386 - based computers.
Current Model
New Model
WD1003A- WAH
WD1003V- MM1
Used in the Equity II + and III +, and currently available from Epson
America, the WD1003A - WAH has been replaced in Western Digital’s product
line by the WD1003V- MM1, The new controller is capable of providing a
2:1 interleave format. This controller card has been tested in the Equity II +
and Ill+ with the Epson 20Mb and 40Mb hard drives as well as the
Seagate ST - 251. Tests were performed using a 2:1 interleave factor and all
tests were completed successfully.
Current Model
New Model
WD1006A - WAH
WD1006V- MM1
The WD1006A - WAH hard disk drive controller card, used in the Equity
386/20 and ‘currently available from Epson America, has been replaced in
Western Digital’s product line by the WD1006V- MM1. The new controller is
capable of providing a 1:1 interleave format. The controller card has been
tested in the Equity II+, Ill+ and 386/20 with the Epson 20Mb and 40Mb
hard drives as well as the Seagate ST-251. All tests were performed using
a 1:1 interleave factor in the test units and were completed successfully.
