TMC LI7WM, Руководство пользователя

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Chapter 6 BIOS and System Setup
44 LI7WM User’s Manual
6.5 Advanced Chipset Features Setup
This Setup menu controls the configuration of the motherboard chipset.
CMOS Setup Utility – Copyright © 1984-1999 Award Software
Advanced Chipset Features
SDRAM CAS Latency Time Auto ITEM HELP
SDRAM Cycle Time Tras/Trc 6/8 Menu Level
SDRAM RAS-to-CAS Delay 3
SDRAM RAS Precharge Time 3
System BIOS Cacheable Enabled
Video BIOS Cacheable Enabled
Memory Hole At 15M-16M Disabled
CPU Latency Timer Enabled
Delayed Transaction Enabled
On-Chip Video Window Size 64MB
* Onboard Display Cache Setting *
CAS# Latency 3
Paging Mode Control Open
RAS-to-CAS Override By CAS# LT
RAS# Timing Fast
RAS# Precharge Timing Fast
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
Auto , 2 and 3 .
SDRAM Cycle Time Tras/Trc
The settings available for the SDRAM Cycle Time Tras/Trc are 6/8 and
5/7 . The default setting is 6/8 .
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
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
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.