Supero SUPER S2DG2, Руководство пользователя и BIOS

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BIOS User's Manual
5-10
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.
ACPI Control Register
The settings for this option are Enabled or Disabled . Set this option to
Enabled to enable the ACPI (Advanced Configuration and Power Interface)
control register.
Gated Clock
Signal GCLKEN enables internal dynamic clock gating in the GX when a
AGPset "IDLE" state occurs. This happens when the GX detects an idle
state on all its buses. The settings for this option are
Enabled
or
Disabled
.
The Enabled setting enables the gated clock.
Graphics Aperture Size
This option specifies the amount of system memory that can be used by the
Accelerated Graphics Port (AGP). The settings are 4 MB , 8 MB , 16 MB , 32
MB , 64 MB , 128 MB , or 256 MB .
Search for MDA (Monochrome Adapter) Range (B0000h-B7FFFh)
Resources
Legacy support requires the ability to have a second graphics controller
(monochrome) in the system. In an AGP system, accesses in the normal
VGA range are forwarded to the AGP bus. Since the monochrome adapter
may be on the PCI (or ISA) bus, the GX must decode cycles in the MDA
range and forward them to PCI. The settings for this option are Yes or No .
Set this option to Yes to let AMIBIOS search for MDA resources.