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Ethernet coprocessor
Checking this box disables the Ethernet coprocessor. You
should only disable the Ethernet coprocessor if you are not
using it.
Disabling the Ethernet coprocessor in SETUP disables the
motherboard hardware and frees the interrupt associated
with the coprocessor. Information on interrupts and their
usage is given in Appendix A at the rear of this guide.
BIOS copy at 16MB
In an ISA compatible system a copy of the system BIOS
appears at 16 Mbytes. Checking this box removes that
copy of the system BIOS from the memory map.
In systems fitted with up to 16 Mbytes of RAM the box can
be either checked, or unchecked, it is unlikely to have a
significant effect.
In systems fitted with more than 16 Mbytes of RAM the box
must be checked.
Memory hole at 16MB
This option is used to enable or disable a hole in
motherboard memory. The hole, when enabled, appears
from 16M-128k to 16M.
This option should normally be disabled, and there is no
hole in the memory map. The hole should only be enabled
when the system RAM capacity is 16Mbytes or greater,
and you have an expansion card which uses memory
mapped I/O.
i486 cache
Checking this box disables the cache memory inside the
i486 processor. There should normally be no reason to
disable the processor cache, it will result in a performance
decrease.
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