[comp.protocols.tcp-ip.ibmpc] ethernet card vs. hard disk

phil@ux1.cso.uiuc.edu (06/07/89)

I am planning to run the IBM NETWATCH program (part of IBM's TCP/IP product)
so I got one of the ONLY TWO ethernet cards it supports (UB's PC/NIC) and
IBM's most powerful machine that still has an AT bus (PS/2-30/286).

Here's the problem I run into.  When I boot from the hard disk (MS-DOS
versions 3.3 and 4.0 have been tried) any attempt to access the ethernet
card with any program will result in the machine locking up with the
screen showing:
  110
 ?????
and I have to power off to fix it.  Also, when I CNTL-ALT-DEL to reboot,
it also locks up then too.  If I boot from the floppy drive things work
OK (both versions of MS-DOS).

Does anyone know anything about the UB PC/NIC card that would make it
sensitive to the disk the machine was booted from, or about the PS/2-30/286
that would make the machine be in a different state such that a hardware
error would appear to happen (or actually happen) just as a result of being
boot from the hard disk?  Does anyone know what the 110 error code really
means?

--Phil howard--  <phil@ux1.cso.uiuc.edu>

BEAME@McMaster.CA (06/07/89)

> I am planning to run the IBM NETWATCH program (part of IBM's TCP/IP product)
> so I got one of the ONLY TWO ethernet cards it supports (UB's PC/NIC) and
> IBM's most powerful machine that still has an AT bus (PS/2-30/286).

> Here's the problem I run into.  When I boot from the hard disk (MS-DOS
> versions 3.3 and 4.0 have been tried) any attempt to access the ethernet
> card with any program will result in the machine locking up with the
> screen showing:

Well we had a similar problem with file transfer for a hard disk on a
PS/2 30/286, the program would lock up when access was attempted to the disk.

We found the problem! PS/2 Model 30/286 are NOT AT class machines, they
are XT class machines when you are dealing with the BIOS and hardware
interrupts. What this means, is that interrupt 5 (Alternate printer on an AT)
is used for the hard disk, just like an XT!!!!!!!

If you have set the interrupt to 5 on the UB card, change it, you are
conflicting with the XT's (model 30/286) hard disk.

        - Carl Beame
          Beame@McMaster.CA