Chapter 5: Running Setup
5-11
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 82443BX when
a AGPset "IDLE" state occurs. This happens when the 82443BX 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 82443BX 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.
AGP Multi-Trans Timer (AGP Clks)
This option sets the AGP multi-trans timer. The settings are in units of AGP
clocks:
32
,
64
,
96
,
128
,
160
,
192
, or
224
.
AGP Low-Priority Timer
This option controls the minimum tenure on the AGP for low priority data
transaction for both read and write. The settings are
Disabled, 32, 64, 96,
128, 160, 192 or 224
.
AGP SERR (Advanced Graphic Port System Error)
BX asserts this signal to indicate a AGP system error condition. The
settings for this option are
Enabled
or
Disabled
. Set to
Enabled
to enable
the AGP SERR# signal.
AGP Parity Error Response
The settings for this option are
Enabled
or
Disabled
. Set to
Enabled
to
enable the AGP (Accelerated Graphics Port) to respond to parity errors.
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