User guide

58 CommPlete Series 4000 Server SBC, Model IPC-551
Award BIOS Setup
Video BIOS Cacheable
As with caching the System BIOS above, enabling the Video BIOS cache
will cause access to video BIOS addressed at C0000H to C7FFFH to be
cached.
Enabled Video BIOS access cached
Disabled Video BIOS access not cached
Disabled is the default.
PCI and IDE Configuration
8 Bit I/O Recovery Time
The recovery time is the length of time, measured in CPU clock periods, that
the system will delay after completing an input/output request. This delay
occurs because the CPU operates much faster than the input/output bus
and, therefore, the CPU must be delayed to allow for the completion of the I/
O.
This setting determines the recovery time allowed for 8 bit I/O. Choices are
from 1 to 8 CPU clock periods.
3 clock periods is the default setting.
16 Bit I/O Recovery Time
This setting determines the recovery time allowed for 16 bit I/O. Choices are
from 1 to 4 CPU clock periods.
2 clock periods is the default setting.
Memory Hole At 15M-16M
In order to improve performance, certain space in memory can be
reserved for ISA cards. This memory must be mapped into the memory
space below 16 MB.
Enabled memory hole supported
Disabled memory hole not supported (default)