WD1003-WA2 Description The WD1003-WA2 controller interfaces with up to two Winchester ST506/ST412 hard disk drives and up to two floppy disk drives in an IBM PC AT or compatible system. The controller board supports drives with up to 16 read/write heads and 2048 cylinders. The following is a list of the most common hard disk drives which have been found to be compatible with the WD1003-WA2 hard disk controller. For a more complete list of hard disk drives and their parameters, return to the STORAGE CONTROLLERS menu. Controller: WD1003-WAH/WA2 Drive Formatted Capacity Western Digital - WD262 21 Megabyte - WD362 21 Megabyte Tandon - TM252 10 Megabyte - TM3085 71 Megabyte Seagate - ST125 21 Megabyte - ST225 21 Megabyte - ST251 42 Megabyte - ST4096 80 Megabyte - ST4038 38 Megabyte NEC - D5126 20 Megabyte - D5146 40 Megabyte Miniscribe - 3650 42 Megabyte - 8425 21 Megabyte Micropolis - 1304 40 Megabyte Maxtor - 1085 71 Megabyte - 1140 119 Megabyte CMI - 3426 20 Megabyte - 6640 33 Megabyte CDC - 94155-36 36 Megabyte Western Digital is a registered trademark of Western Digital Corporation; IBM PC, AT and XT are registered trademarks of the International Business Machines Corporation; MS DOS, OS2 and PC DOS are registered trademarks of Microsoft Corporation. WD1003-WA2 User Guide The WD1003-WA2 controller is designed to interface with up to two Winchester ST506/ST412 hard disk drives and up to two floppy disk drives in an IBM PC AT or compatible system and will support drives with up to 16 read/write heads and 2048 cylinders. Each drive may be a different configuration. The WD1003-WA2 can operate in computer systems with bus speeds up to 8MHz. The WD1003-WA2 REV E044 can operate in systems with bus speeds up to 12MHz. If you do not know your system's bus speed, contact your system manufacturer. Bus speed and clock speed are not the same number. Installation of the controller requires three steps: 1) verifying jumper settings; 2) installing into the host computer; 3) formatting the hard disk drives. To complete installation, you will need the following: Two hard disk cables (3 if using 2 hard disk drives); one 34 pin floppy drive cable (a daisy chain type cable if using two floppy disk drives); Winchester hard disk drive; floppy disk drive; screwdriver; MSDOS Version 2.0 or later; IBM Advanced Diagnostic diskette (or similar program for IBM compatibles); System Diagnostic Diskette (or equivalent); FDISK and Format utility (normally included with MSDOS). Preparation of Controller WARNING HANDLE THE CONTROLLER BY THE ENDS OF THE BOARD SOME OF THE CHIPS ARE STATIC SENSITIVE AND DAMAGE MAY OCCUR IF THE BOARD IS INCORRECTLY HANDLED Before you can install your WD1003-WA2, you will need to be certain that the jumpers (small shorting plugs) are correctly set. Refer to Table 1 for correct jumper settings. Modification of factory jumper settings is rarely necessary. Modify jumpers only under the direction of a qualified individual; i.e. your dealer. ÚÄÄLEDÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿ ³ ÚÄJ6 J3¿ ÚJ4 ÚJ5ÚJ1 ³ ³ ÀÄÙ ³³ ³³ ³³ ³³ ³ ³ 1 2 3 ÀÙ ÀÙ ³³ ³³ ³ ³ E ù ù ù ³³ ³³ ³ ³ E ù ù ù ÀÙ ÀÙ ³ ³ 4 5 6 ÚÄÄÄÄÄÄ¿ ùE7 ³ ³ ³ U10 ³ ÚU26¿ ùE8 ³ ³ WD1003-WA2 ÀÄÄÄÄÄÄÙ ÀÄÄÄÙ ùE9 ³ ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿ ÚÄÄ¿ ÚÄÄÄÙ ÀÁÁÁÁÁÁÁÁÁÁÙ ÀÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÙ Table 1 WD1003-WA2 Jumper Settings Pin Connects Description DO NOT MOVE PRIMARY ADDRESS JUMPERS UNLESS YOUR OPERATING SYSTEM IS CONFIGURED TO ACCEPT TWO HARD DISK CONTROLLERS. CERTAIN OPERATING SYSTEMS SUPPORT TWO CONTROLLERS IN THE SAME SYSTEM. IBM DOS AND MANY IBM-COMPATIBLE OPERATING SYSTEMS DO NOT SUPPORT THIS FEATURE E2-E3 Standard factory setting. Selects primary addresses. E5-E6 Standard factory setting. Selects primary addresses. E1-E2 Selects secondary addresses for floppy disk drive. E4-E5 Selects secondary addresses for hard disk drive. E7-E8 Standard factory setting. Supports 360 RPM floppy disk drives. E8-E9 Jumper in this position selects 300 RPM floppy disk drives. Hardware Installation WARNING MAKE SURE COMPUTER IS TURNED OFF AND POWER IS DISCONNECTED 1. Verify that your host computer has a 135 watt power supply. If the disk drive(s) is(are) being installed internally, it is best to locate the controller in the nearest available expansion slot to the drive. 2. Remove the blank expansion slot bracket. Put the bracket away and save it for possible future use. The screw will be used to hold the new controller in place. 3. The terminating resistor must be present only on the last hard disk drive connected. If there are two drives, the terminating resistor must be present on the second drive. Verify proper setting of drive select switches for drive select 1 or 2. Refer to your system owner's manual for information about proper drive termination and select switches. NOTE THE CABLES FOR THE HARD DISK DRIVE AND FLOPPY DISK DRIVES ARE NOT THE SAME. DO NOT USE A FLOPPY CABLE ON A HARD DISK DRIVE. CONSULT YOUR DISTRIBUTOR IF YOU ARE UNABLE TO DISTINGUISH BETWEEN THE CABLE TYPES. 4. Attach 34-pin control connector pin 1 to J5 on the controller board. Make sure that Pin 1 of the cable connector goes to Pin 1 on the controller board. Pin 1 of the cable connector is typically located on the color coded side of the cable. 5. Connect control cable to drive. 6. Attach 20-pin data connector to J4 (Drive C or 1). 7. Attach 20-pin data connector to J3 (Drive D or 2). 8. Connect data cables to drives. 9. Attach 34-pin floppy cable connector to J1. Connect cable to floppy drive. 10. Attach Winchester activity LED connector to J6. 11. Install controller board into the expansion slot. Make sure that the board is seated properly by pressing down on both ends of the board. Secure the board with the bracket screw. 12. Remove or disable any other floppy controller in your system. CAUTION WHEN ROUTING CABLES, BE CAREFUL NOT TO PINCH THEM. CABLES MUST NOT GET CAUGHT BETWEEN THE COVER AND THE BOARDS, NOR SHOULD THEY OBSTRUCT ANY AIR FLOW PATH FROM FANS OR VENTS. Western Digital is a registered trademark of Western Digital Corporation; IBM PC, AT and XT are registered trademarks of the International Business Machines Corporation; MS DOS, OS2 and PC DOS are registered trademarks of Microsoft Corporation. WD1003A-WA2 Software Installation ...WARNING..................WARNING......................WARNING... THE FOLLOWING LOW-LEVEL FORMAT PROCEDURE WILL DESTROY ALL DATA ON YOUR HARD DRIVE BACK-UP THE DATA ON YOUR DRIVE BEFORE CONTINUING WITH LOW LEVEL FORMAT ROUTINE The format instructions that you follow are simple procedures to tell the computer that you have either one or two Winchester disk drives installed and prepares your operating system to recognize the Western Digital controller. You will need to know the parameters of your hard disk drives. As a convenience to you, we have included a list of the most common hard disk drives and their parameters. To access this list, return to the STORAGE CONTROLLERS menu. If your drive is not listed, contact your drive manufacturer or consult your drive manual to determine drive type and parameters. 1. Insert your system Diagnostic Diskette (or equivalent). 2. Turn on power. 3. Boot diagnostic and select setup option. 4. Set clock, etc. CAUTION Avoid system damage by consulting your Technical Reference manual to ensure that your drive type is supported by your host BIOS drive tables. Not all AT-compatibles share the same drive tables as IBM. 5. Select proper drive type. (Consult your Technical Reference Manual.) NOTE Step 6 requires execution of low level formatting. Use of the IBM Advanced Diagnostic (or similar program for IBM-compatibles) is necessary since these controllers contain no on-board Basic Input/Output System (BIOS) ROM. 6. Insert your Advanced Diagnostic diskette and execute low level Format. Follow instructions in your reference manual. 7. Insert System Diagnostic Diskette (or equivalent) after the system finishes the low level format. 8. Load and execute the FDISK (to partition your drive) and FORMAT (high level format) programs. Follow instructions in your reference manual. Troubleshooting Problem: 1790 Disk 0 Error. Cause: No low level format on hard disk. Wrong drive type selected. Not enough drive power. Bad cables. Improper drive selection or termination. Problem: Drive does not partition. Cause: Check drive types. Note that drive types for the AT and AT-compatibles differ. Problem: "Error Reading Fixed Disk" appears when booting from hard drive. Cause: DOS partition not active. Problem: Winchester activity LED continuously lit. Cause: No problem. Drive LED selected for latched mode. Problem: For systems with two drives, both Winchester activity LEDs light at the same time. Cause: Improper drive selection or termination. Inspect the drive cables. If the controller cable is straight, then set drive C's drive select switches for drive select 1 and drive D's drive select switches for drive select 2. If the controller cable has a twist, set both drives' select switches for drive select 2. Consult your drive manuals or dealer for drive switch settings. Finally, under no circumstances, use twisted floppy cables for the Winchester drive. Floppy and Winchyester drive interface connections differ significantly. Problem: Slow and inefficient operation. Cause: The biggest culprit for this problem is an incorrect interleave factor. Therefore, some experimentation with the interleave factor may be necessary. (Refer to the format instructions for setting interleave factor). Interleave factors are very dependent on the host operating system and application. Problem: Not getting full capacity from drive. Cause: You may have an RLL type drive. Consult your drive manual. The WD1003-WA2 is designed for use with MFM type drives only. DO NOT USE WITH RLL DRIVES.