Chapter 3 BIOS Setup
36
User’s Manual
System BIOS Cacheable: Selecting
Enabled
allows caching of the system BIOS ROM at F0000h - FFFFFh,
resulting in better system performance. However, if any program writes to this memory area, a system error
may result. The settings are
Enabled
and
Disabled
.
Video RAM cacheable: The choices: Enabled, Disabled (Default).
Frame Butter Size: The choices: 2M, 4M, 8M(Default), 16M, and 32M.
AGP Aperture Size: Select the size of the Accelerated Graphics Port (AGP) aperture. The aperture is a
portion of the PCI memory address range dedicated for graphics memory address space. Host cycles that hit
the aperture range are forwarded to the AGP without any translation.
AGP 4X Mode: Setting AGP rate to 4X or 2X.
AGP Driving Control: This item allows you to adjust the AGP driving force. Choose Manual to key in an AGP
Driving Value in the next selection. This field is recommended to set in
Auto
for avoiding any error in your
system. The default setting is
Auto
.
AGP Driving Value: This item allows you to adjust the AGP driving force.
Panel Type: Please select the type of panel you are incorporating with our single board computer. Consult your
panel manual for detail information.
CPU to PCI Write Buffer: When this field is
Enabled
, writes from the CPU to the PCI bus is buffered, to
compensate for the differences between the CPU and the PCI bus. When disabled, the writes are not buffered
and the CPU must wait until the write is complete before starting another cycle. The default setting is
Enabled
.
PCI Dynamic Bursting: This item allows you to enable or disable the PCI dynamic bursting function. The
settings are
Enabled
or
Disabled
.
PCI Master 0 WS Write: When enabled, writes to the PCI bus and are executed with zero wait states. The
settings are
Enabled
or
Disabled
.
PCI Delay Transaction: The chipset has an embedded 32-bit posted write buffer to support delay
transactions cycles. Select
Enabled
to support compliance with PCI specification version 2.1. The settings are
Enabled
or
Disabled
.
Summary of Contents for EM-568 Series
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Page 8: ...Chapter 1 Introduction 4 User s Manual 1 5 Board Layout...
