Whiskey wrote on 2020-06-09, 20:07:I'm not familiar with GUS cards or drivers at all, and have been following the guide you provided @TheMobRules. Just checking I'm not missing out some kind of initialisation step like a config.sys or autoexec.bat line or something, the PNPMAP is the first step?
Not necessarily. With R11 in its default position and a functional card, PNPMAP would normally be the first thing you would do, and no entries in CONFIG.SYS or AUTOEXEC.BAT are required. However, this doesn't appear to be the situation at hand.
To simplify matters, I suggested that you move R11 to its alternate position for the time being. In this state, you can set all of the usual environment variables and run IWINIT directly. Plug and Play support will be disabled, and PNPMAP will never work, and is not required.
Make sure you have some no-clean, non-conductive flux, and re-flow the parts mentioned previously. It seems likely that one (or more) of the capacitors in the crystal circuits are not doing the job, one of the other capacitors around the InterWave isn't correctly soldered or one of the critical resistors needed on power-up isn't correctly soldered, causing the chip to enter a different configuration and/or perpetual suspend state. Take your time and re-flow them all with a bit of flux for each joint; they should be smooth and taper away from the component in question, rather than a blob at the end of it. If you're using lead-free solder, it's fine if they aren't shiny. If it's leaded solder, the joints should usually be relatively shiny.
EDIT: Forgot to mention:
Whiskey wrote on 2020-06-09, 20:07:
Will give the R11 change and IW dump a try as well.
For ARGUS and the GUS PnP, tools like IWDUMP will not work if IWINIT cannot find and initialise the card and PNPMAP also fails. IWDUMP depends on the card having I/O addresses assigned (as part of IWINIT or Plug and Play initialisation), as well as the ULTRASND environment variable being correctly set.