Hypertherm SuperMicro 370SBA 533Mhz User Manual
Page 61
Chapter 5: Running Setup
5-9
Memory Autosizing Support
The dynamic detection and sizing of SDRAM and EDO is performed by the
BIOS in a system populated with memory which has no SPD information.
When set to
Enable
, memory does not have the SPD information. The
settings for this option are
Auto
or
Enable
.
DRAM Integrity Mode
This option is
grayed out
for the Celeron processor, but is available for the
Pentium II processor.
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-seconds),
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.