Hypertherm SuperMicro 370SBA 533Mhz User Manual

Page 62

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SUPER 370SBA/370SBM/370SLA/370SLM

User’s Manual

5-10

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, 16, 32, 48,

64, 80, 96, 112, 128, 144, 176, 192, 208, 224, or 240

.

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.

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