
Intellio PCI Family Note for DOS Driver
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Warning: 
Before configuring the PCI board under DOS environment, you must to run 
"mxupdate.exe" to change the PCI board's memory resource requirement
to "under 1MB". 

The Intellio Family multiport boards need the 16k bytes memory resource.
For ISA board, you only need to set the dip-switch (refer the user's manual).
But for PCI board, the memory resource is assigned by BIOS. Because the
MOXA DOS API-232 only can access the memory under 1MB, so we must to modify
the MOXA PCI board settings to force the BIOS to assign the memory under 1MB. 
MOXA offers the utility "mxupdate.exe" to let you to configure the PCI board.
You can select "under 1MB" option and restart the PC. Then you can use the 
MOXA PCI board under DOS environment. 

Note 1:
Intellio PCI Family board with "under 1MB" configuration can not work on
PCI Bus number 1 or above. That is, these boards only can work on PCI 
Bus number=0.

Note 2:
On some motherboard, the some 640k~1MB memory bank is reserved for system.
In this situation, MOXA PCI board CAN NOT be used under DOS environment with
such motherboard.
