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BIOS SETUP
34 I815E User’s Manual
Advanced Chipset Features
This Setup menu controls the configuration of the chipset.
CMOS Setup Utility – Copyright © 1984-2001 Award Software
Advanced Chipset Features
SDRAM CAS Latency Time 3 ITEM HELP
SDRAM Cycle Time Tras/Trc Auto Menu Level
SDRAM RAS-to-CAS Delay Auto
SDRAM RAS Precharge Time Auto
System BIOS Cacheable Disabled
Video BIOS Cacheable Disabled
CPU Latency Timer Enabled
Delayed Transaction Enabled
AGP Graphics Aperture Size 64MB
System Memory Frequency 100Mhz
On-Chip Video Window Size 64MB
SDRAM CAS Latency Time
You can select CAS latency time in HCLKs of 2/2 or 3/3. The system
board designer should set the values in this field, depending on the
DRAM installed. Do not change the values in this field unless you change
specifications of the installed DRAM or the installed CPU. The choices
are 2 and 3.
SDRAM Cycle Time Tras/Trc
The default setting for the SDRAM Cycle Time Tras/Trc is Auto.
SDRAM RAS-to-CAS Delay
You can select RAS to CAS Delay time in HCLKs of 2/2 or 3/3. The
system board designer should set the values in this field, depending on the
DRAM installed. Do not change the values in this field unless you change
specifications of the installed DRAM or the installed CPU. The choices
are Auto, 2 and 3.
SDRAM RAS Precharge Time
This option defines the length of time for Row Address Strobe is allowed
to precharge. The choices are Auto, 2 and 3.
System BIOS Cacheable
The setting of Enabled allows caching of the system BIOS ROM at
F000h-FFFFFh, resulting in better system performance. However, if any
program writes to this memory area, a system error may result.