BIOS Manual
5-10
is selected, AMIBIOS automatically enables the
System Management Interface (SMI). If you do not
want to enable power management, set the Power
Management/APM option to
Disabled
and set all
Power Management Setup timeout options to
Disabled
. To enable power management, set Power
Management/APM to
Enabled
and set the power
management timeout options as desired.
DRAM Refresh Rate
This option specifies the interval between Refresh signals to DRAM
system memory. The settings for this option are
15.6 us
(micro-sec-
onds),
31.2 us
,
62.4 us
,
124.8 us
or
249.6 us
.
Memory Hole
This option specifies the location of an area of memory that cannot be
addressed on the ISA bus. The settings are
Disabled
,
15 MB
-
16 MB
, or
512
KB
-
640 KB
.
SDRAM CAS# Latency
This option regulates the column address strobe. The settings are 2 SCLKs,
3 SCLKs or
Auto
.
SDRAM RAS# to CAS# Delay
This option specifies the length of the delay inserted between the RAS and
CAS signals of the DRAM system memory access cycle if SDRAM is
installed. The settings are
Auto
(AMIBIOS automatically determines the
optimal delay),
2 SCLKs
or
3 SCLKs
.
Note: The Optimal default setting is
Auto and the Fail-Safe default setting is 3 SCLKs
.
SDRAM RAS# Precharge
This option specifies the length of the RAS precharge part of the DRAM
system memory access cycle when Synchronous DRAM system memory is
installed in the computer. The settings are
Auto
(AMIBIOS automatically
determines the optimal delay),
2 SCLKs or 3 SCLKs
.
Note: The Optimal
default setting is Auto and the Fail-Safe default setting is 3 SCLKs.
Power Down SDRAM
BX supports SDRAM power down mode to minimize SDRAM power usage.
The settings for this option are
Enabled
or
Disabled
. The
Enabled
setting
enables the SDRAM Power Down feature.
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