W D 9 5 0 3 8 X WESTERN DIGITAL NO MORE PRODUCED Native| Translation ------+-----+-----+----- Form 5.25"/HH Cylinders 782| 615| | Capacity form/unform 30/ MB Heads 3| 6| | Seek time / track 70.0/ ms Sector/track 27| | | Controller IDE / XT Precompensation 784 Cache/Buffer KB Landing Zone 781 Data transfer rate 0.938 MB/S int Bytes/Sector 512 MB/S ext Recording method RLL 2/7 operating | non-operating -------------+-------------- Supply voltage 5/12 V Temperature *C 4 50 | -40 60 Power: sleep W Humidity % 8 80 | 5 95 standby W Altitude km -0.458 3.040| -0.458 12.192 idle W Shock g 10 | 40 seek W Rotation RPM 3567 read/write W Acoustic dBA 40 spin-up W ECC Bit 56 MTBF h 40000 Warranty Month Lift/Lock/Park NO Certificates FCC ********************************************************************** L A Y O U T ********************************************************************** WESTERN WD93028/-38/-48-X/95028/-38-48-X INSTALL. GUIDE 79-000-352 +---------------------------------------------------------+ | |XX I | |XX N | |XX T | |XX E | |XX R | |*X F J2 | |XX A | |XX C | |XX E | |XX | |XX1 | |6-5 J8 | || | ++LED |2-1 ++ |XX J1 | |XX Power +---------------------------------------------------------+ J2 J8 J1 +39------------------------------------1++5-3-1++-------+ |o o o o o o o o o o o o o o o o o o o o||o o o||O O O O| |o o o o o o o o o o o o o o o o o o o||o o o||1 2 3 4| --+40------------------------------------2++6-4-2+++-+-+-++---- | | | +5V (Pin 20 keyed) | | +- GND | +--- GND +----- +12V ********************************************************************** J U M P E R S ********************************************************************** WESTERN WD93028/38/48-X/WD95028/38/48-X INSTALLATION GUIDE 79-000-35 Jumper Setting ============== Jumper Option ------------- The following option can be selected on the 6-pin header J8. Pins 1, 3, and 5 are connected to the port pins on the 8052 microcomputer IC while pins 2, 4, and 6 are tied to ground. Disable Translation ------------------- You drive may be configured for the translation mode or the non- translation mode. The translation mode allows you to your Western Digital drive with an older S#system BIOS and/or operating systems which only support MFM drives with 17 sectors per track. The non- translation mode accommodates an RLL drive with 27 sectors per track. When pins 1 and 2 are shorted together, the translate option is disabled. If pin 1 is open, the translate option is enabled, and the drive can be used with any BIOS that has a drive table listing less than total sectors than your Western Digital drive (less than 42,228 sectors for the two-head drive assembly; and 84,456 for the four-head drive assembly). For example, a Western Digital drive in translation mode may replace a drive which has 615 cylinders, four heads and 17 sectors. Dual Drive Operation -------------------- If you are installing two physical drives in your XT system, the first drive must be selected at port address 320H. Its BIOS resides at address C800H. Select the second drive at port address 324H. Its BIOS resides at CA00H. Both drives must therefore have seperate cables connectinmg them to the motherboard. You will require Western Digital's XT140 adapter card which has two 40-pin connectors. Plug drive 0 into J1 connector and Drive 1 into J2 connector on the adapter card. ********************************************************************** I N S T A L L ********************************************************************** WESTERN WD93028/38/48-X/WD95028/38/48-X INSTALL. GUIDE 79-000-352 Notes on installation ===================== System Requirements ------------------- You can use your drive in an IMB PC/XT or compatible system that has these operating systems: MS-DOS version 2.0 and higher or Novell NetWare. Contact your Western Digital dealer if you need informations about other operating systems. Gather Supplies --------------- If your computer's motherboard has a 40-pin connector for installa- tion of a hard disk drive, you will need the following items: +----------+-------------+------------+ |Capacity | 3.5 Inch | 5.25 Inch | | | Form Factor | Frame | | | | | |20 MBytes | WD93028-X | WD95028-X | |30 MBytes | WD93038-X | WD95038-X | |40 MBytes | WD93048-W | WD95048-X | +----------+-------------+------------+ - Your Western Digital drive: - One 40-pin interface cable (Maximum length of 18 inches) - Optional mounting frame, bezel and LED - IDE SUPERBIOS program for low-level formatting If there is not a 40-pin connector on the motherboard or you intend to place two hard disk drives in your system, your drive will additionally require: - Western Digital's XT140R adapter card with IDE SUPERBIOS or XT150R adapter card with IDE SUPERBIOS and power connector. - Additional 40-pin interface cable, if installing a second drive. Mount the disk drive to the host using four 6-32 screws. After securely mounting the drive, verify that nothing interferes with the free movement of the drive's shock mounts. WARNING The only electrical ground contact should be from universal mounting bracket to the frame on the host system. Do not ground to the hard drive assembly (HDA) casting. Screws which are too long will cause a ground loop to the HDA and defeat the shock mounting or possibly damage board components. The screw should engage no more than six threads (3/16 inch). Connectors ---------- Interface Connector: 2 x 20 pin right angle .1" Berg stick (pin 20 keyed) Cable type: 40-conductor mass terminated flat ribbon Cable length: 18 inches maximum ********************************************************************** F E A T U R E S ********************************************************************** WESTERN WD93028/38/48-X/WD95028/38/48-X INSTALL. GUIDE 79-000-352 Product Description ------------------- Western Digital's WD93028-X, WD93038-X, and WD93048-X are intelligent drive products for the IBM PC/XT and compatibles. Their architectures integrate an ST-412/ST-506 compatible hard drive assembly with a controller on a single printed circuit board that is mounted on the disk drive's chassis. The integration of disk drive and controller increases reliability and performance by eliminating redundant circuitry. Models WD93028-X, WD93038-X, and WD93048-X offer 20, 30, and 40 MB of storage, respectively, in a 3.5 inch form factor. These drives are also available in 5.25-inch frame (WD95028-X, WD95038-X, and WD95048-X). Formatting Your Drive --------------------- Use the IDE SUPERBIOS program to perform a low-level format of your drive. The WDXT140R or WDXT150R adapter card contains the IDE SUPER- BIOS program. If you have an XT compatible with a drive interface connector on the motherboard, it must provide a SUPERBIOS program. Do no use the IBM Advanced Diagnostic Format Option. The low-level format is performed just once for each physical drive. When you dynamically configure a drive as two virtual drives (partions), perform the low-level format only on drive C and the run the DOS FDISK and FORMAT utilities on both logical drives (C and D). MFM Drive Tables (Translation Mode) ----------------------------------- +--------+--------+--------+--------+ |TABLE 1 |TABLE 2 |TABLE 3 |TABLE 0 | +--------+--------+--------+--------+ |20 MB |30 MB |40 MB |20 MB | +--------+--------+--------+--------+ |615 Cyl.|615 Cyl.|977 Cyl.|612 Cyl.| |4 Heads |6 Heads |5 Heads |4 Heads | |616 RWC |616 RWC |978 RWC |450 RWC | |616 WPC |616 WPC |978 WPC |450 WPC | |11 EBL |11 EBL |11 EBL |11 EBL | |5 CCB |5 CCB |5 CCB |5 CCB | +--------+--------+--------+--------+ RLL Drive Tables (Non-translation Mode) --------------------------------------- +--------+--------+--------+--------+ |TABLE 4 |TABLE 5 |TABLE 6 |TABLE 0 | +--------+--------+--------+--------+ |20 MB |30 MB |40 MB |20 MB | +--------+--------+--------+--------+ |782 Cyl.|782 Cyl.|782 Cyl.|615 Cyl.| CCB = Command control block |2 Heads |3 Heads |4 Heads |4 HEads | option byte |784 RWC |784 RWC |784 RWC |616 RWC | Cyl. = Cylinders |784 WPC |784 WPC |784 WPC |616 WPC | RWC = Reduced write current |11 EBL |11 EBL |11 EBL |11 EBL | WPC = Write precompensation |7 CCB |7 CCB |7 CCB |7 CCB | EBL = Maximum correctable +--------+--------+--------+--------+ error burst rate Interleave ---------- 5:1 interleave for optimum data throughput (3:1 interleave when in burst mode)