Boca BASIC VGA VGA006, Installation Manual

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3.5 Configuring the Basic VGA on a Network
Some network cards do not fully decode a 16-bit I/O address; these
cards deal only with 10-bits of a 16-bit I/O address. The Basic VGA has
a global set up register at an I/O/ base address of 46E8h. A network
card that improperly decodes I/O addresses will see 46E8h in a 10-bit
format as 02E8h. 02E8h may conflict with a network card in the
02E0h-02E8h range. Such a conflict will prevent access the network
server. If this occurs, choose an alternative base I/O address for your
network card and regenerate the shell; refer to your network
documentation or NetWare vendor if you require additional assistance
in this area. In general, when configuring a network system avoid the
following areas the Basic VGA occupies:
Memory addresses A000h - C7FFh
I/O addresses 03B0h - 03Dfh
and in some instances 02E0h - 02E8h.
The Basic VGA does not require an interrupt (IRQ).
Physical Installation