abit bg-72 Manual De Usuario

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3-14 Chapter 
DRAM RAS# Precharge 
Select the number of CPU clocks allocated for the Row Address Strobe (RAS#) signal 
to accumulate its charge before the DRAM is refreshed. If insufficient time is allowed, 
refresh may be incomplete and data lost. 
Turbo Mode 
This item allows you to speed up the external clock by approximately 2.5%. This 
feature is used to verify the design flexibility. It is a very important tool for test units 
to verify CPU stability. 
Command Pre Clock 
Leave this item at Auto to enhance the system performance. 
Memory Frequency For 
This item allows you to set the frequency for memory modules. 
System BIOS Cacheable 
This item allows the system to be cached in memory for faster execution. Enable this 
item for better performance. 
Video BIOS Cacheable 
These items allow the video BIOS and RAM to be cached in memory for faster 
execution. Enable these items for better performance. 
Delayed Transaction 
The chipset has an embedded 32-bit posted write buffer to support delayed transaction 
cycles. Enable this item to support compliance with PCI specification version 2.1. 
AGP Aperture Size (MB) 
This item defines the size of the aperture if you use an AGP graphics adapter. The 
AGP aperture refers to a section of the PCI memory address range used for graphics 
memory. We recommend that you leave this item at the default value. 
AGP Data Transfer Rate 
You can select the AGP device data transfer rate capability. 
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