ADLINK Technology NuPRO-598 Series, Руководство пользователя, Страница: 53 / 90

BIOS Configuration
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8 Bit I/O Recovery Time
The recovery time is the length of time, which the system delays after the
completion of an input/output request. The CPU clocks measure it. This
delay takes place because the CPU is operating much faster than the
input/output bus that the CPU must be delayed to allow for the completion of
the I/O.
This option specifies the length of the delay (in sysclks) inserted between
consecutive 8 -bit I/O operations. The settings are 1, 2, 3, 4, 5, 6, 7, or 8. The
default setting is
NA .
16 Bit I/O Recovery Time
This option specifies the length of the delay (in sysclks) inserted between
consecutive 16-bit I/O operations. The settings are 1, 2, 3, 4.The default
setting is
NA .
Memory Hole at 15MB - 16MB
In order to improve performance, certain space in memory can be reserved
for ISA boards. This field allows you to reserve 15MB to 16MB memory
address space to ISA expansion boards. This makes memory from 15MB
and up unavailable to the system. Expansion boards can only access
memory up to 16MB. By default, this field is set to
Disabled .
Auto Detect DIMM/PCI Clk
When enabled, the system automatically shuts off clocks of unused
DIMM/PCI slots. The default setting is
Disabled .
Power-Supply Type
AT<Default>
This power supply is reserved for traditional system that
uses the AT power supply.
ATX
The ATX power supply is used for more functions about
the system’s power management. Some wake up event
function is provided by this type power supply.
Spread Spectrum
This field sets the value of the spread spectrum. Options are Disabled, 1.8%
(CNTR), 0.6% (CNTR), 1.8% (DOWN), and 0.6% (DOWN). The default
setting is
Disabled . This field is for CE testing use only
.
Case_Open Warning
When the system is power on, to open the system’s case may causes
accidental damage. If this field enabled, it alarms by speaker beeping. You