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Chapter 3 BIOS Description
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400M01 Series User Manual
AGP Aperture Size (Default: 64 M)
This option defines the size of the aperture if you use an AGP graphics adapter.
The aperture is a portion of the PCI memory address range dedicated for
graphic memory address space.
Note: This function does not work when onboard VGA is used.
AGP Mode (Default: 4X)
This option is used to set an appropriate mode for the installed AGP card.
AGP Fast Write (Default: Enabled)
This option enables or disables the AGP Fast Write feature. The Fast Write
technology allows the CPU to write directly to the graphics card without pass-
ing anything through the system memory and improves the AGP 4X speed.
Select “Enabled” only when your AGP card supports the feature. The setting
values are: Disabled and Enabled.
AGP Master 1 WS Write (Default: Disabled)
When “Enabled”, writes to the AGP (Accelerated Graphics Port) are executed
with one wait states. The setting values are: Disabled and Enabled.
AGP Master 1 WS Read (Default: Disabled)
When “Enabled”, reads to the AGP (Accelerated Graphics Port) are executed
with one wait states. The setting values are: Disabled and Enabled.
AGP 3.0 Calibration cycle (Default: Enabled)
This option allows you to enable or disable the AGP 3.0 calibration cycle. This
cycle ensures that the on-die termination impedance signal swing and slew
rate of the AGP signals are calibrated on a periodic basis to ensure signal
integrity. It is recommended to keep this setting enabled.
AGP & P2P Bridge Control Menu
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