re drive controller compatibility 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 read write heads and up to cylinders the upgrade is payable by check or money order send to western digital corporation technical support group p o box irvine ca the super bios is for any wd xt hard drive controller card in the wd series the bios on my system would only handle up to mb 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 received from mailbox syr edu by ponder id aa sat apr from ravalent mailbox syr edu bob valentine received from mothra syr edu by mailbox syr edu cns id aa sat apr est received by mothra syr edu spike id aa sat apr est date sat apr est message id aa 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 ponder organization syracuse university syracuse ny cc in article drice ponder you write i recently bought a used seagate st 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 my controller is a western digital wd s wx rev c as i said above the drive is a seagate st the system is a compaq portable circa ah finally a question i can answer i mess with this older stuff alot kinda fun first problem i can forsee is that the st 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 or x if the last digits are you got problems controller jumpers are set as follows represents jumper w w w w w w w looks right w and w are factory jumped with a trace between pins and to select the primary controller address the drive jumpers are as follows represents jumper looks right art deleted here are my questions are the drive and controller compatible w each other i notice you left out the s jumper table settings those are what control what drive the controller thinks it has if you have the rom set it like this open open open open closed closed open open note those are how wd runs the numbers on the jumper block top to bottom s represent the jumper pins pins and select the first drive setting drive and pins and select the second drive drive if you have the 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 are the jumpers on the card drive set correctly see above you might have problems if the s jumpers are not right also at the risk of being insulting make sure the cables are on right and good on the jumper on the try moving it to the opposite side of the drive it s one or the other the narrow data cable goes to j i ve thrown it on j a few times and banged my head for a day is my system s bios in need of an upgrade dunno ibm roms had to be later than a quick way to check is to boot dos and run debug enter d f fff 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 bob valentine ravalent mailbox syr edu from chpp unitrix utr ac za mon apr received from unitrix utr ac za by ponder id aa mon apr received by unitrix utr ac za smail id m nfpma x c mon apr gmt message id m nfpma x c unitrix utr ac za from chpp unitrix utr ac za prof p piacenza subject st to drice ponder date mon apr gmt x mailer elm version pl mime version content type text plain charset us ascii content transfer encoding bit content length status or if you are using a twisted way cable then move the jumper on your drive to the neighbouring pins make sure that the twisted cable is for a hard disk and not a floppy disk the coloured stripe pin should be furthest from the twist this may also help products for xt systems hard disk controllers for mfm hard disk drives reference note wd a wx feature f r half slot size hard disk controller card with an st st interface it supports mfm drives with up to heads and 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 reference note wdxt gen feature f r half slot size hard disk controller card with an st st interface it supports mfm hard disk drives with up to heads and 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 wd a wx feature f r half slot size disk controller card with an st st interface it supports mfm drives with up to heads and 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 wdxt gen feature f r half slot size hard disk controller card with an st st interface it supports mfm hard disk drives with up to heads and cylinders built in rom bios supports non standard drive types virtual drive formatting dual drive operation bad track formatting and dynamic formatting reference note hard disk controllers for rll hard disk drives reference note wd x feature f r half slot size hard disk controller card with an st st interface it supports rll hard disk drives with up to heads and 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 reference note wd a x feature r half slot size hard disk controller with an st st interface it supports rll drives with up to heads and 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 wd x feature f r half slot size hard disk controller card with an st st interface it supports rll hard disk drives with up to heads and 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 wd a x feature f r half slot size hard disk controller with an st st interface it supports rll drives with up to heads and cylinders built in rom bios supports non standard drive types virtual drive formatting bad track formatting and dynamic formatting note at t the at t and the at t 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 or add a jumper at position r depending on which model of xt controller you are using note tandy systems the wd a wx wd a wx wdxt gen and the wd x can be modified to operate in tandy series computers models sx tx and the original or a version these computers utilize an interrupt of irq instead of irq the ibm standard to modify the wd a wx or the wd x to operate in these systems you must cut the etch between pin and pin at jumper position w then solder pin and pin at the position w to complete the modification a jumper must be added to position of switch s rows of pins please note that any physical modification to your western digital hard disk controller voids the warranty on your board to modify the wd a wx wdxt gen or the wd x for your tandy system a zero ohm resister must be soldered to jumper position w this will change the interrupt from irq to irq xt controllers for floppy disk drives wd a fox half slot floppy disk controller for xt or at systems four versions of the board are available feature f supports two floppy disk drives feature f supports four floppy disk drives and includes an optional pin control data and power connector and an optional pin power connector feature f 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 f supports four floppy disk drives and includes an optional pin control data and power connector an optional 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 products for at systems hard disk controllers for mfm hard disk drives no floppy support wd wah feature f r hard disk controller card with an st st interface it supports mfm drives with up to heads and cylinders interleave wd v mm feature f r hard disk controller card with an st st interface it supports mfm drives with up to heads and cylinders interleave the v boards can run in high speed at systems to megahertz system speed wd wah feature f r hard disk controller card with an st st interface it supports mfm drives with up to heads and cylinders interleave wd v mm feature f r hard disk controller card with an st st interface it supports mfm drives with up to heads and cylinders interleave and faster data transfer due to look ahead caching the v boards can run in high speed at systems to megahertz system speed hard disk controllers for mfm hard disk drives and floppy disk drives wd wa feature f r hard disk controller card with an st st interface full at form factor it supports mfm drives with up to heads and cylinders at interleave and floppy disk drives k and mb wd a wa feature f r hard disk controller card with an st st interface full xt form factor it supports mfm drives with up to heads and cylinders at interleave and floppy disk drives k and mb wd v mm feature f r hard disk controller card with an st st interface it supports a maximum of mfm drives with up to heads and cylinders at interleave and floppy disk drives k mb k mb the v boards can run in high speed at systems to megahertz system speed wd v mm feature f r hard disk controller card with an st st interface it supports a maximum of mfm drives with up to heads and cylinders at interleave and faster data transfer due to look ahead caching and floppy disk drives k mb k mb the v boards can run in high speed at systems to megahertz system speed hard disk controllers for rll hard disk drives no floppy support wd rah hard disk controller card with an st st interface it supports rll hard disk drives with up to heads and cylinders at interleave wd v sr hard disk controller card with an st st interface it supports a maximum of rll hard disk drives with up to heads and cylinders at interleave the v boards can run in high speed at systems to megahertz system speed feature f r includes an optional rom bios that allows the user to define the drive s parameters feature f r 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 wd rah hard disk controller card with an st st interface it supports a maximum of rll hard disk drives with up to heads and cylinders interleave feature f r includes an optional rom bios that provides additional drive parameter tables feature f r 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 wd v sr hard disk controller card with an st st interface it supports rll hard disk drives with up to heads and cylinders interleave and faster data transfer due to look ahead caching the v boards can run in high speed at systems to megahertz system speed feature f r includes an optional rom bios that allows the user to define the drive s parameters feature f r 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 wd ra feature f r hard disk controller card with an st st interface it supports a maximum of rll hard disk drives with up to heads and cylinders at interleave and floppy disk drives k mb wd v sr hard disk controller card with an st st interface it supports a maximum of rll hard disk drives with up to heads and cylinders at interleave and floppy disk drives k mb k mb the v boards run in high speed at systems to megahertz system speed feature f r includes an optional rom bios that allows the user to define the drive s parameters feature r 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 wd v sr hard disk controller card with an st st interface it supports a maximum of rll hard disk drives with up to heads cylinders and floppy disk drives k mb k mb it also features interleave and faster data transfer due to look ahead caching the v boards can run in high speed at systems to megahertz system speed feature f r includes an optional rom bios that allows the user to define the drive s parameters feature r 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 wd a wah this controller card will support up to esdi hard disk drives megabit per second data transfer rate and interleave feature f r 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 f r 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 wd v se me this controller card will support up to esdi hard disk drives megabit per second data transfer rate and interleave the v boards can run in high speed at systems to megahertz system speed feature f r 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 f r 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 and floppy disk drives wd a wa this controller card will support up to esdi hard disk drives megabit per second data transfer rate interleave and floppy disk drives k mb k mb feature f r 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 f r 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 wd v se me this controller card will support up to esdi hard disk drives megabit per second data transfer rate interleave and floppy drives k mb k mb the v boards can run in high speed at systems to megahertz bus speed feature f r 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 f r 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 wd a wa this controller card will support up to esdi hard disk drives megabit per second data transfer rate interleave and floppy disk drives k mb k mb this board also has a serial port and parallel port feature f r 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 f r 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 hard disk controllers for scsi hard disk drives 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 pin connector and to the at bus through two edge connectors the 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 megabytes per second synchronous an on board floppy disk controller and a rom bios please note that the asc operates using standard dos or dos only fasst this scsi host adapter card provides the same features as the asc plus additional support capabilities using software developed by columbia data products the fasst will support ms dos compaq dos pc dos pc mos version 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 pin external scsi bus d connector with a standard 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 bit scsi hba board manual fasst software diskettes and an internal scsi cable sytos tape backup utility for fasst fasst sytos fasst version of sytos tape backup utilities ms dos compatible it runs with fasst software products revision hard disk controllers for ps model systems microchannel architecture wd v mc feature f r hard disk controller with an st st interface for microchannel systems it supports mfm drives with up to heads and cylinders interleave and faster data transfer due to look ahead caching the v boards can run in high speed at systems to megahertz system speed wd v mc feature f r this controller card will support up to esdi hard disk drives 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 interleave the v boards can run in high speed at systems to megahertz bus speed controllers for floppy disk drives only wd a fox half slot floppy disk controller for xt or at systems four versions of the board are available feature f supports two floppy disk drives feature f supports four floppy disk drives and includes an optional pin control data and power connector and an optional pin power connector feature f 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 f supports four floppy disk drives and includes an optional pin control data and power connector an optional 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 internet sppp hippo ru ac za from necis mydual uucp olson transfer stratus com mon apr received from transfer stratus com by ponder id aa mon apr received from necis uucp by transfer stratus com jjm id aa mon apr edt received from mydual by necis necis ma nec com id aa apr edt received by mydual uucp smail id aa mon apr est date mon apr est from kirtland h olson mydual olson transfer stratus com message id aa mydual uucp to drice ponder subject re drive controller compatibility newsgroups comp sys ibm pc hardware in reply to drice ponder organization the harvard group reply to necis olson mydual uucp transfer stratus com cc status or suggest you move jumper on drive rightward one position regards kirt kirtland h olson harvard ma usa olson mydual uucp necis ma nec com
