Western Digital WD1003V-MM1
Logs
typeType
MFM/RLL controller
interfaceInterface
signalSignaling
16-bit ISA
dimSlot height
1
datePCI ID
Empty
dimDimensions
212 mm (width) x 108mm (length)
chip Chips and specs
-> Disk Legacy MFM/RLL
Western Digital WD42C22A Western Digital WD10C22B (Self-Adjusting Data Separator)
-> Processor
Intel 8032 (Microcontroller)
MTL
Chipset Western Digital
Data Bus 16-bit ISA
Card Size Full height, three-quarters length
Hard Drives Supported Two ST506/412(MFM) devices
tag Also known as
portintI/O ports
1x 
  • 2x17 2.54mm pin header
2x 
  • 2x10 2.54mm pin header
powerPower connectors
Empty
notes Notes

The difference between WD1006V and WD1003V appears to be the buffer size.

  • WD1006V-MM1- 8K buffer
  • WD1003V-MM1 - 2K buffer

There are a pair of link contacts (directly below J5) that set which buffer size the card expects. Switching this link and the RAM chip is likely the only requirement for converting a WD1003 to a WD1006 (or vice versa).

See the https://theretroweb.com/expansioncards/s/western-digital-wd1006v-mm2 page for the version of this card equipped with a floppy controller.

Last updated 2025-08-03T18:32:17Z
biosc No BIOS files available
drv No drivers available
doc 4 card documents available
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1999
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1996-03-01
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image1 Image 1 of 3 (Fabio Z)
image2 Image 2 of 3 (Fabio Z)
image3 Image 3 of 3 (Fabio Z)

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