Thanks to all who responded to my original post.  I got the number for Western Digital tech support and determined that I need to upgrade the BIOS to the Super BIOS.  It will handle hard drives with up to 16 read/ write heads and up to 1024 cylinders.  The upgrade is $15, payable by check or money order.  Send to:  	Western Digital Corporation 	Technical Support Group 	P.O. Box 19665 	Irvine, CA  92713-9665  The Super BIOS is for any WD XT hard drive controller card in the WD1002 series.  The BIOS on my system would only handle up to 20mb drives.  The responses to my request for help follow my .sig.  Warning: It's long.  Keith  -- _____________________________ __-----____--___--__-----____	D. Keith Rice __--__--___--__--___--__--___	University of North Texas __--___--__--_--____--___--__	Department of Computer Science __--___--__----_____--__--___	Denton, Texas, USA __--___--__--_--____--_--____ __--__--___--__--___--__--___	drice@ponder.csci.unt.edu __-----____--___--__--___--__	drice@cs.unt.edu _____________________________  <========================== responses below ==========================>  From ravalent@mailbox.syr.edu Sat Apr  3 16:45:03 1993 Received: from mailbox.syr.EDU by ponder (5.61/1.36) 	id AA15218; Sat, 3 Apr 93 16:45:00 -0600 From: ravalent@mailbox.syr.edu (Bob Valentine) Received: from mothra.syr.EDU by mailbox.syr.edu (4.1/CNS) 	id AA16647; Sat, 3 Apr 93 17:44:49 EST Received: by mothra.syr.EDU (4.1/Spike-2.0) 	id AA03607; Sat, 3 Apr 93 17:43:27 EST Date: Sat, 3 Apr 93 17:43:27 EST Message-Id: <9304032243.AA03607@mothra.syr.EDU> To: drice@ponder Status: OR  To: drice@ponder.csci.unt.edu Subject: Re: Drive/Controller Compatibility Newsgroups: comp.sys.ibm.pc.hardware In-Reply-To: <drice.733866833@ponder> Organization: Syracuse University, Syracuse, NY Cc:   In article <drice.733866833@ponder> you write: >I recently bought a used Seagate ST-251 hard drive.  The guy told me that >it had been fully tested and that it was good.  I took it home to install >in my Compaq Portable (OK, I'm a little behind in technology).  I already >had an MFM controller. > >I installed the drive and powered up the system.  I got a post error, "1701". > >My controller is a Western Digital WD1002S-WX2 Rev. C. >As I said above, the drive is a Seagate ST-251. >The system is a Compaq Portable (circa 1985).       Ah, finally a question I can answer.   I mess with this older stuff alot.   Kinda fun.  8)       First problem I can forsee is that the ST-251 will not be compadible with that WD card unless it has the right bios rom.        Check the numbers on it.  It should be the only non-smt chip on the board.  Slightly below center, and left.    The bios should read  either :     62-000042-015 or              62-000094-0x2       If the last 3 digits are 013, you got problems.  > >Controller jumpers are set as follows: ("-" represents jumper) >	W1	1-2 3 >       W2      1-2 3 >	W3	1-2 >	W4	1 2-3 >	W5	1 2 3 >	W6	1-2 3 >	W7	1 2 3      Looks right.   W5 and W7 are factory jumped (with a trace) between pins 1 and 2 to select the primary controller address.  >The drive jumpers are as follows: ("8" represents jumper)      Looks right.    [art deleted]  >Here are my questions: > >1.)	Are the drive and controller compatible w/ each other?        I notice you left out the S1 jumper table settings.   Those are what control what drive the controller thinks it has.   If you have the 62-000042-015 rom, set it like this:                5 + +    open               6 + +    open                            7 + +    open                       8 + +    open               4 + +    closed               3 + +    closed               2 + +    open               1 + +    open      Note:   those are how WD runs the numbers on the jumper block. Top to bottom.   +'s represent the jumper pins.    Pins 3,4, and 8 select the first drive setting (drive 0) and pins 1,2 and 7 select the second drive (drive 1).           If you have the 62-000094 rom, it's a auto-config, and I'll have to look up how to do it... I don't have the big book right here.  >2.)	Are the jumpers on the card/drive set correctly?        See above.  You might have problems if the S1 jumpers are not right.   Also,  at the risk of being insulting, make sure the cables are on right and good. 8).    On the jumper on the 251, try moving it to the opposite side of the drive.    It's one or the other.         The narrow data cable goes to J2.   I've thrown it on J3 a few times and banged my head for a day.....  >3.)	Is my system's BIOS in need of an upgrade?       Dunno.    IBM roms had to be later than 10/27/82.   A quick way to check is to boot dos and run debug.   Enter:                 -d f000:fff5 fffc    (the - is the debug prompt)         This will return the rom date, if it's of any use.  >Keith Rice        If I oversimplified any of the above, I appologize.     It's just hard to know what caliber of person I'm talking to. 8).                       -->   Bob Valentine  <--                     --> ravalent@mailbox.syr.edu <--      From chpp@unitrix.utr.ac.za Mon Apr  5 06:33:46 1993 Received: from unitrix.utr.ac.za by ponder (5.61/1.36) 	id AA16194; Mon, 5 Apr 93 06:32:59 -0500 Received: by unitrix.utr.ac.za (Smail3.1.28.1 #1) 	id m0nfpMA-0001X7C; Mon, 5 Apr 93 13:28 GMT Message-Id: <m0nfpMA-0001X7C@unitrix.utr.ac.za> From: chpp@unitrix.utr.ac.za (Prof P. Piacenza) Subject: ST251 To: drice@ponder Date: Mon, 5 Apr 1993 13:28:49 +0200 (GMT) X-Mailer: ELM [version 2.4 PL11] Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Length: 24559      Status: OR   If you are using a TWISTED 34-way cable then move the jumper  on your drive to the neighbouring pins   :8::::::.  Make sure that the twisted cable is for a hard disk (and not a floppy disk) - the coloured stripe (pin 1) should be furthest from the twist.  This may also help.                                PRODUCTS FOR XT SYSTEMS                  HARD DISK CONTROLLERS FOR MFM HARD DISK DRIVES                                   Reference NOTE 1.                            WD1002A-WX1, feature F300R - Half-slot size hard disk controller            card with an ST506/ST412 interface.  It supports 2 MFM drives            with up to 16 heads and 1024 cylinders and is jumper            configurable for secondary addressing and default drive tables.             Built in ROM BIOS supports non-standard drive types, virtual            drive formatting, dual drive operation, bad track formatting and            dynamic formatting.  This board features a power connector for            filecard applications and it will also operate in AT systems.            Please note that this controller card will be unavailable from            the manufacturer (Western Digital) after March, 1989.  Reference            NOTE 2.                      WDXT-GEN, feature F300R - Half-slot size hard disk controller            card with an ST506/ST412 interface.  It  supports 2 MFM hard            disk drives with up to 8 heads and 1024 cylinders.  Built-in ROM            BIOS supports non-standard drive types, virtual drive            formatting, dual drive operation, bad track formatting and            dynamic formatting.  Please note that this controller card will            be unavailable from the manufacturer (Western Digital) after            March, 1989.                      WD1004A-WX1, feature F300R - Half-slot size disk controller            card  with an ST506/ST412 interface.  It supports 2 MFM drives            with up to 16 heads and 1024 cylinders and is jumper            configurable for secondary addressing and default drive tables.             Built in ROM BIOS supports non-standard drive types, virtual            drive formatting, dual drive operation, bad track formatting and            dynamic formatting.  This board features a power connector for            filecard applications and it will also operate in AT systems.             Reference NOTE 2.                      WDXT-GEN2, feature F300R - Half-slot size hard disk controller              card with an ST506/ST412 interface.  It supports 2 MFM hard disk            drives with up to 8 heads and 1024 cylinders.  Built-in ROM BIOS            supports non-standard drive types, virtual drive formatting,            dual drive operation, bad track formatting and dynamic            formatting.  Reference NOTE 2.                                  HARD DISK CONTROLLERS FOR RLL HARD DISK DRIVES                                   Reference NOTE 2.                            WD1002-27X, feature F301R - Half-slot size hard disk controller            card with an ST506/ST412 interface.  It supports 2 RLL hard disk            drives with up to 16 heads and 1024 cylinders and is jumper            configurable for secondary addressing and default drive tables.             Built in ROM BIOS supports non-standard drive types, virtual            drive formatting, dual drive operation, bad track formatting and            dynamic formatting.  This board features a power connector for            filecard applications and it will also operate in AT systems.              Please note that this controller card will be unavailable from            the manufacturer (Western Digital) after March, 1989.  Reference            NOTE 2.                      WD1002A-27X, feature 300R - Half-slot size hard disk controller            with an ST506/ST412 interface.  It supports 2 RLL drives with up            to 16 heads and 1024 cylinders. Built-in ROM BIOS supports non-           standard drive types, virtual drive formatting, bad track            formatting and dynamic formatting.  Please note that this            controller card will be unavailable from the manufacturer                (Western Digital) after March, 1989.                      WD1004-27X, feature F301R - Half-slot size hard disk controller             card with an ST506/ST412 interface.  It supports 2 RLL hard               disk drives with up to 16 heads and 1024 cylinders and is jumper            configurable for secondary addressing and default drive tables.             Built in ROM BIOS supports non-standard drive types, virtual               drive formatting, dual drive operation, bad track formatting                and dynamic formatting.  This board features a power connection            for filecard applications and it will also operate in AT            systems.  Reference NOTE 2.                      WD1004A-27X, feature F300R - Half-slot size hard disk            controller  with an ST506/ST412 interface.  It supports 2 RLL            drives with up to 16 heads and 1024 cylinders.  Built-in ROM            BIOS supports non-standard drive types, virtual drive            formatting, bad track formatting and dynamic formatting.                      NOTE 1:  AT&T 6300 - The AT&T 6300 and the AT&T 6300 PLUS            contain system BIOS chips that support the hard disk drive.             When using a Western Digital XT controller card the system will            not "boot."  To solve this problem, one of the ROM BIOS chips            must be disabled.  To disable the BIOS on your Western Digital             XT controller card, you must remove the jumper at position W-3            or add a jumper at position R-23 (depending on which model of XT            controller you are using).                                                   -2-                        NOTE 2:  TANDY 1000 SYSTEMS - The WD1002A-WX1, WD1004A-WX1,            WDXT-GEN2 and the WD1004-27X can be modified to operate in            Tandy 1000 series computers, models SX, TX and the original or            "A" version.  These computers utilize an interrupt of 2 (IRQ2)            instead of IRQ5, the IBM standard.  To modify the WD1002A-WX1 or            the WD1002-27X to operate in these systems, you must cut the            etch between pin 1 and pin 2 at jumper position W-7.  Then            solder pin 2 and pin 3 at the position (W-7).  To complete the            modification, a jumper must be added to position 7 of switch S-1            (2 rows of 8 pins).  PLEASE NOTE THAT ANY PHYSICAL MODIFICATION            TO YOUR WESTERN DIGITAL HARD DISK CONTROLLER VOIDS THE WARRANTY            ON YOUR BOARD.  To modify the WD1004A-WX1, WDXT-GEN2 or the            WD1004-27X for your Tandy 1000 system, a zero ohm resister must            be soldered to jumper position W-27.  This will change the            interrupt from IRQ5 to IRQ2.                  XT CONTROLLERS FOR FLOPPY DISK DRIVES                            WD1002A-FOX - Half-slot floppy disk controller for XT or AT             systems.  Four versions of the board are available:                 Feature F001 supports two floppy disk drives.                 Feature F002 supports four floppy disk drives and includes                  an optional 37-pin control, data and power connector and                  an optional 4-pin power connector.                 Feature F003 supports two floppy disk drives and includes                 a ROM BIOS that will enable your system to recognize                  floppy disk drive that may not be supported by your AT                 system ROM BIOS.  The optional ROM BIOS will also allow                 this controller card to operate high density floppy disk                 drives in an XT system.                 Feature F004 supports four floppy disk drives and includes                 an optional 37-pin control, data and power connector, an                 optional 4-pin power connector and a ROM BIOS that will                  enable your system to recognize floppy disk drives that                  may not be supported by your AT system ROM BIOS.  The                  optional ROM BIOS will also allow this controller card to                  operate high density floppy disk drives in an XT system.                                                                          -3-                                 PRODUCTS FOR AT SYSTEMS                   HARD DISK CONTROLLERS FOR MFM HARD DISK DRIVES - NO FLOPPY SUPPORT                            WD1003-WAH, feature F003R - Hard disk controller card with an              ST506/ST412 interface.  It supports 2 MFM drives with up to 16            heads and 2048 cylinders, 3:1 interleave.                      WD1003V-MM1, feature F300R - Hard disk controller card with an             ST506/ST412 interface. It supports 2 MFM drives with up to 16             heads and 2048 cylinders, 2:1 interleave.  The "V" boards can              run in high speed AT systems (10 to 16 megahertz system speed).                      WD1006-WAH , feature F001R - Hard disk controller card with                an ST506/ST412 interface.  It supports 2 MFM drives with up to            16 heads and 2048 cylinders, 1:1 interleave.                          WD1006V-MM1, feature F300R - Hard disk controller card with an             ST506/ST412 interface.  It supports 2 MFM drives with up to 16             heads and 2048 cylinders, 1:1 interleave and faster data                transfer due to "look ahead caching."  The "V" boards can run in            high speed AT systems (10 to 16 megahertz system speed).                            HARD DISK CONTROLLERS FOR MFM HARD DISK DRIVES AND FLOPPY DISK DRIVES                       WD1003-WA2, feature F003R - Hard disk controller card with an             ST506/ST412 interface, full AT form factor.  It supports 2 MFM            drives with up to 16  heads and 2048 cylinders, at 3:1            interleave and 2 floppy disk drives (360K and 1.2 MB).                      WD1003A-WA2, feature F003R - Hard disk controller card with an            ST506/ST412 interface, full XT form factor.  It supports 2 MFM            drives with up to 16 heads and 2048 cylinders, at 3:1 interleave            and 2 floppy disk drives (360K and 1.2 MB).                      WD1003V-MM2, feature F300R - Hard disk controller card with an             ST506/ST412 interface.  It supports a maximum of 2 MFM drives            with up to 16  heads and 2048 cylinders at 2:1 interleave, and 2            floppy disk drives (5-1/4" 360K, 1.2Mb; 3-1/2" 720K, 1.44Mb).              The "V" boards can run in high speed AT systems, (10 to 16            megahertz system speed).                      WD1006V-MM2, feature F300R - Hard disk controller card with an              ST506/ST412 interface.  It supports a maximum of 2 MFM drives            with up to 16 heads and 2048 cylinders at 1:1 interleave and            faster data transfer due to "look ahead caching" and 2 floppy            disk drives (5-1/4" 360K, 1.2 Mb; 3-1/2" 720K, 1.44 Mb).  The            "V" boards can run in high speed AT systems, (10 to 16 megahertz            system speed).                                                         -4-        HARD DISK CONTROLLERS FOR RLL HARD DISK DRIVES - NO FLOPPY SUPPORT                             WD1003-RAH - Hard disk controller card with an ST506/ST412            interface.  It supports 2 RLL hard disk drives with up to 16             heads and 2048 cylinders at 3:1 interleave.                       WD1003V-SR1 - Hard disk controller card with an ST506/ST412            interface.  It supports a maximum of 2 RLL hard disk drives with            up to 16 heads and 2048 cylinders at 2:1 interleave. The "V"            boards can run in high speed AT systems (10 to 16 megahertz            system speed).                 Feature F301R includes an optional ROM BIOS that allows                  the user to define the drive's parameters.                  Feature F300R does not include the ROM BIOS and you must                   use the drive tables on your system's ROM BIOS that must                  contain the appropriate drive parameters.                                       WD1006-RAH - Hard disk controller card with an ST506/ST412            interface.  It supports a maximum of 2 RLL hard disk drives with            up to 16 heads and 2048 cylinders, 1:1 interleave.                 Feature F001R includes an optional ROM BIOS that provides                   additional drive parameter tables.                 Feature F300R does not include the ROM BIOS and you must                    use the drive tables on your system's ROM BIOS that must                  contain the appropriate drive parameters.                                       WD1006V-SR1 - Hard disk controller card with an ST506/ST412                interface.  It supports 2 RLL hard disk drives with up to 16            heads and 2048 cylinders, 1:1 interleave and faster data            transfer due to "look ahead caching."  The "V" boards can run in            high speed AT  systems (10 to 16 megahertz system speed).                 Feature F301R includes an optional ROM BIOS that allows                   the user to define the drive's parameters.                            Feature F300R does not include the ROM BIOS and you must                   use the drive tables on your system's ROM BIOS that must                  contain the appropriate drive parameters.                                               HARD DISK CONTROLLERS FOR RLL HARD DISK DRIVES AND FLOPPY DISK DRIVES                       WD1003-RA2, feature F001R -  Hard disk controller card with an             ST506/ST412 interface.  It supports a maximum of 2 RLL hard disk            drives with up to 16  heads and 2048 cylinders, at 3:1            interleave, and 2 floppy disk drives (5-1/4" 360K, 1.2 Mb).                                                                    -5-                       WD1003V-SR2 -  Hard disk controller card with an ST506/ST412               interface.  It supports a maximum of 2 RLL hard disk drives with            up to 16 heads and 2048 cylinders, at 2:1 interleave, and 2            floppy disk drives, (5-1/4" 360K, 1.2 Mb; 3-1/2" 720K, 1.44            Mb).  The "V" boards run in high speed AT systems (10 to 16            megahertz system speed).                 Feature F301R includes an optional ROM BIOS that allows                    the user to define the drive's parameters.                 Feature 300R does not include the ROM BIOS and you must                 use the drive tables on your system's ROM BIOS that must                  contain the appropriate drive parameters.                                       WD1006V-SR2 -  Hard disk controller card with an ST506/ST412              interface.  It supports a maximum of 2 RLL hard disk drives with            up to 16 heads, 2048 cylinders and 2 floppy disk drives (5-1/4"            360K, 1.2 Mb; 3-1/2" 720K, 1.44 Mb).   It also features 1:1            interleave and faster data transfer due to  "look ahead            caching".  The "V" boards can run in high speed AT  systems (10            to 16 megahertz system speed).                               Feature F301R includes an optional ROM BIOS that allows                  the user to define the drive's parameters.                 Feature 300R does not include the ROM BIOS and you must                    use the drive tables on your system's ROM BIOS that must                  contain the appropriate drive parameters.                                               HARD DISK CONTROLLERS FOR ESDI HARD DISK DRIVES - NO FLOPPY SUPPORT -                            WD1007A-WAH - This controller card will support up to 2 ESDI            hard disk drives, 10 megabit per second data transfer rate and            1:1 interleave.                         Feature F301R  includes an optional ROM BIOS with "shadow                  RAM" that will enable the controller card to interface                  with all types of ESDI drives without modifying the system                  ROM BIOS.                 Feature F300R does not include the ROM BIOS and you must                  use the drive tables on your system's ROM BIOS that must                  contain the appropriate drive parameters.                            WD1007V-SE1/ME1 - This controller card will support up to 2 ESDI            hard disk drives, 15 megabit per second data transfer rate and            1:1 interleave.  The "V" boards can run in high speed AT            systems, (10 to 16 megahertz system speed).                 Feature F301R includes an optional ROM BIOS with "shadow                  RAM" that will enable the controller card to interface                  with all types of ESDI drives without modifying the system                  ROM BIOS.                 Feature F300R does not include the ROM BIOS and you must                  use the drive tables on your system's ROM BIOS that must                  contain the appropriate drive parameters.                                                         -6-             HARD DISK CONTROLLERS FOR ESDI HARD DISK DRIVES AND FLOPPY DISK       DRIVES                            WD1007A-WA2 - This controller card will support up to 2 ESDI            hard disk drives, 10 megabit per second data transfer rate, 1:1            interleave and 2 floppy disk drives (5-1/4" 360K, 1.2 Mb; 3-1/2"            720K, 1.44 Mb).                 Feature F301R includes an optional ROM BIOS with "shadow                  RAM" that will enable the controller card to interface                  with all types of ESDI drives without modifying the system                  ROM BIOS.                 Feature F300R does not include the ROM BIOS and you must                  use the drive tables on your system's ROM BIOS that must                  contain the appropriate drive parameters.                                       WD1007V-SE2/ME2 - This controller card will support up to 2 ESDI            hard disk drives, 15 megabit per second data transfer rate, 1:1            interleave and 2 floppy drives (5-1/4" 360K, 1.2 Mb; 3-1/2"            720K, 1.44 Mb).  The "V" boards can run in high speed AT systems            (10 to 12 megahertz bus speed).                 Feature F301R includes an optional ROM BIOS with "shadow                  RAM" that will enable the controller card to interface                  with all types of ESDI drives without modifying the system                  ROM BIOS.                 Feature F300R does not include the ROM BIOS and you must                  use the drive tables on your system's ROM BIOS that must                  contain the appropriate drive parameters.                                             WD1007A-WA4 - This controller card will support up to 2 ESDI            hard disk drives, 10 megabit per second data transfer rate, 1:1            interleave and 2 floppy disk drives (5-1/4" 360K, 1.2 Mb; 3-1/2"            720K, 1.44 Mb).  This board also has a serial port and parallel            port.                 Feature F301R includes an optional ROM BIOS with "shadow                  RAM" that will enable the controller card to interface                  with all types of ESDI drives without modifying the system                  ROM BIOS.                 Feature F300R does not include the ROM BIOS and you must                  use the drive tables on your system's ROM BIOS that must                  contain the appropriate drive parameter.                                                                           -7-               HARD DISK CONTROLLERS FOR SCSI HARD DISK DRIVES                            7000-ASC - A SCSI host adapter that serves as an interface            between the AT bus and the SCSI bus.  All necessary drivers and            receivers are included, permitting direct cable connections to            the SCSI bus through a 50 pin connector and to the AT bus            through two edge connectors.  The 7000-ASC utilizes jumper             configurable options that enable the address space, DMA channels            and interrupt requests to be selected to suit the end user's            application.  The board also features word data transfer at 4            megabytes per second (synchronous), an on-board floppy disk            controller and a ROM BIOS.  Please note that the 7000-ASC            operates using standard DOS 3.2 or DOS 3.3 only.                      7000-FASST2 - This SCSI host adapter card provides the same            features as the 7000-ASC plus additional support capabilities            using software developed by Columbia Data Products.  The 7000-           FASST2 will support MS-DOS 3.2-3.3, Compaq DOS 3.31, PC-DOS 4.0,            PC-MOS/386 version 2.1, XENIX, Microsoft Windows, Novell and            Sytos tape backup.                      WDATXT-FASST KIT - An "unintelligent" SCSI host adapter that is            compatible with the IBM XT, AT and compatible systems.  It uses            a 50 pin external SCSI bus "D" connector with a standard 50 pin            internal SCSI cable.  The WDATXT-FASST can be used as  both a            target and an initiator and it serves as an excellent tool for            SCSI designers.  It also provides a low cost alternative for end-           users desiring to install a SCSI peripheral device such as a            hard disk drive or a tape backup unit. The kit includes an 8-bit            SCSI HBA board, manual, FASST software diskettes and an internal            SCSI cable.                      SYTOS TAPE BACKUP - (Utility for 7000-FASST) - FASST-SYTOS -            FASST version of Sytos tape backup utilities.  MS-DOS            compatible, it runs with FASST software products Revision 3.3+.                            HARD DISK CONTROLLERS FOR PS/2 MODEL 50, 60, 80 SYSTEMS        (MICROCHANNEL ARCHITECTURE)                            WD1006V-MC1, feature F300R - Hard disk controller with an            ST506/ST412 interface for microchannel systems.  It supports 2            MFM drives with up to 16 heads and 2048 cylinders, 1:1            interleave and faster data transfer due to "look ahead            caching."  The"V" boards can run in high speed AT systems (10 to            16 megahertz system speed).                                                         -8-                        WD1007V-MC1, feature F300R - This controller card will support            up to 2 ESDI hard disk drives, 15 megabit per second transfer            rate and it contains a ROM BIOS with "shadow RAM" that will            enable the controller card to interface with all types of ESDI            hard disk drives without modifying the system BIOS.  It uses 1:1            interleave.  The "V" boards can run in high speed AT systems,            (10 to 12 megahertz bus speed).                                  CONTROLLERS FOR FLOPPY DISK DRIVES ONLY                            WD1002A-FOX - Half-slot floppy disk controller for XT or AT            systems.  Four versions of the board are available:                 Feature F001 supports two floppy disk drives.                 Feature F002 supports four floppy disk drives and includes                  an optional 37-pin control, data and power connector and                  an optional 4-pin power connector.                 Feature F003 supports two floppy disk drives and includes                  a ROM BIOS that will enable your system to recognize                      floppy disk drives that may not be supported by your AT                  system ROM BIOS.  The optional ROM BIOS will also allow                  this controller card to operate high density floppy disk                 drives in an XT system.                 Feature F004 supports four floppy disk drives and includes                  an optional 37-pin control, data and power connector, an                  optional 4-pin power connector and a ROM BIOS that will                  enable your system to recognize floppy disk drives that                  may not be supported by your AT system ROM BIOS.  The                  optional ROM BIOS will also allow this controller card to                  operate high density floppy disk drives in an XT system.                    --      Prof. L. Piacenza - Chemistry Department - University of Transkei     Internet: chpp@unitrix.utr.ac.za  (preferred).  Tel. 27-471-3022384     Internet: sppp@hippo.ru.ac.za   From necis!mydual.uucp!olson@transfer.stratus.com Mon Apr  5 12:14:06 1993 Received: from transfer.stratus.com by ponder (5.61/1.36) 	id AA29202; Mon, 5 Apr 93 12:14:03 -0500 Received: from necis.UUCP by transfer.stratus.com (4.1/3.12-jjm) 	id AA22183; Mon, 5 Apr 93 13:12:04 EDT Received: from mydual by necis.necis.ma.nec.com id aa21760; 5 Apr 93 12:50 EDT Received: by mydual.UUCP (5.58/smail2.5/09-28-87) 	id AA18009; Mon, 5 Apr 93 13:24:23 EST Date: Mon, 5 Apr 93 13:24:23 EST From: "Kirtland H. Olson" <mydual!olson@transfer.stratus.com> Message-Id: <9304051824.AA18009@mydual.UUCP> To: drice@ponder Subject: Re: Drive/Controller Compatibility Newsgroups: comp.sys.ibm.pc.hardware In-Reply-To: <drice.733866833@ponder> Organization: The Harvard Group, 01451-0667 Reply-To: necis!olson%mydual.uucp@transfer.stratus.com Cc:  Status: OR  Suggest you move jumper on drive rightward one position.  Regards,        --Kirt