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CHECKING YOUR PC SETTINGS
A-4
Note: Devices can use 10-bit addresses (up to 03FF), 12-bit
addresses (up to 0FFF) or 16-bit address (up to
3FFF). The Live100 boards use 16-bit addresses, the
Live50 board uses 10-bit addresses.
Boards from other manufacturers which use 10-bit
or 12-bit addresses may accidentally respond to
higher addresses. This is a fairly common problem
due to the continuing evolution of conventions in
the PC hardware industry.
For example, a LAN card which uses the 10-bit
address 0300 might accidentally respond to
commands intended for a different card that uses a
16-bit address such as 1300, since the lower ten bits
of that address are 0300.
Therefore, we recommend that you select a 10-bit
address (below 0400) for the Live100 Audio
Communications board; however, we recommend
that you do not modify the 16-bit address for your
VGA card (27CA), because the lower 10 bits of that
card are avoided by most 10-bit cards.
If you find that a device is using the selected addresses, locate an
available address and write it down:
Available I/O port address: __________________
You'll need to change the setting on the appropriate board, as
described in step 11.
10. Review your PC documentation for additional conflicts.
The Microsoft Diagnostics program does not always report
software IRQ settings or shared memory addresses of devices
that are not currently running.
11. If you found any conflicts, change the settings by running the
PictureTel Live Setup program again and entering the new
settings.
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