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Western Digital WD1004-27X, Installation Manual

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Western Digital WD1004-27X Installation Manual Download Page 1

READ THIS FIRST

INSTALLATION GUIDE

WD1004-27X

WD1004A-27X

Winchester Disk Controller Boards

FEBRUARY 1989

Summary of Contents for WD1004-27X

Page 1: ...READ THIS FIRST INSTALLATION GUIDE WD1004 27X...

Page 2: ...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...

Page 3: ...004 27X and WD1004A 27X These controllers are similar functionally except for a few features These boards are described below WD1004 27X Board Figure 1 1 shows the connector locations J1 J2 J3 J4 and...

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Page 7: ...ins at W17 to W22 and W25 to W28 The WD1004A board has a row of jumper pins at W25 to W28 Adding a jumper shorting plug at any of these locations selects a hardware configurations that is different fr...

Page 8: ...st the jumper settings Default factory settings are marked with a symbol Table B 1 Pre selected Drive Tables Table Number First Drive W17 W18 Second Drive W19 W20 Capacity Heads Cylinders 0 in in in i...

Page 9: ...Table B 3 Select BIOS ROM R23 Select BIOS in selects external BIOS out selects internal BIOS Table B 4 Select Sectors and Configuration Option W25 W26 Table Sectors Translate Dynamic...

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