> APPLE COMPUTER, INC. 820-0511-A
> APPLE ETHERNET NB TWISTED-PAR CARD (C) 1993
>
> SONIC-T DP83934AVQB K9336AJ PANTENTED (C)(M) 1992
>
> SN74BCT2425PQ 9336AR 3167617
>
> SN74ACT2441PQ 9334XN 3167236
> ----
> 
> The card's interface is 10 BASE-T. There is `COMPAQ' mark on the card. 
> The card also has SONIC chip, but no 68000 cpu. Then I tried the card 
> under GENERIC-29. At the booting:
>
> ----
> ae0 at nubus0: failed to determin size of RAM.
> ----

  Since the ae driver is trying to control it, the Nubus drhw and drsw
  must not be recognized correctly.

  Could you get the "Slots" program from 
ftp.apple.com://devworld/Tool_Chest/Devices_-_Hardware/NuBus_Slot_Manager/Slots
.sit.hqx,
  run it under MacOS on your machine, and send the results to me?
  Slots will decode the Nubus declaration area which should provide
  enough info to get the card recognized.

> Ummm. DP83934-SONIC is also not supported?

  The original SONIC is 83932. The 83934 is the SONIC plus the twisted
  pair ENDEC, which is slightly cheaper than using external componentry.
  The sn driver should support both chips, there is little software-visible
  difference.