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1990-08-22
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Number: A2TH072790U215
Subject: VGA Address Conflict With Arcnet in PS/2 Machines
Date: August 21, 1990
OS Version: All
Shell Version: All
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GENERAL
INFORMATION: If a PS/2 is running VGA, the reference diskette will not show
that Int 2, or the memory range from A000 to C800 is being
used.
Here is a note from the NetWare 386 v3.1 Supplements Manual
page 3-7. "IMPORTANT: Do not choose an interrupt level that
conflicts with other boards in the station. (IBM's REFERENCE
diskette program allows duplicate interrupt levels in a given
station, but NetWare does not.)". As you may have noticed,
there is nothing to show a user that the VGA is using Int 2
or Mem A000-C800. This is rather important as it means RX-
net/2s or SMC PS110s cannot be configured for these addresses
or interrupt.
(X) This information was verified in the lab.