IBASE FWA8206 - Manual (Page 20)

FWA8206 Series User’s Manual
8
This Setup menu controls the configuration of the chipset.
Phoenix - AwardBIOS CMOS Setup Utility
Advanced Chipset Features
DRAM Timing Selectable By SPD ITEM HELP
CAS Latency Time Auto Menu Level
DRAM RAS# to CAS# Delay Auto
DRAM RAS# Precharge Auto
Precharge Delay Auto
SLP_S4# Assertion Width
System Memory Frequency Auto
System BIOS Cacheable Enabled
Video BIOS Cacheable Enabled
Memory Hole at 15M-16M Disabled
PCI Express Root Press Enter
On-Chip Video Memory Press Enter
On-Chip Frame Buffer Size Memory 8MB
DVMT Version DVMT 3.0
FIXED Memory Size 64MB
DVMT Memory Size 64MB
Boot Display Auto
DRAM Timing Selectable
This option refers to the method by which the DRAM timing is selected. The default is By SPD.
CAS Latency Time
You can configure CAS latency time in HCLKs as 2 or 2.5 or 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.
DRAM RAS# to CAS# Delay
This option allows you to insert a delay between the RAS (Row Address Strobe) and CAS (Column Address Strobe)
signals. This delay occurs when the SDRAM is written to, read from or refreshed. Reducing the delay improves the
performance of the SDRAM.
DRAM RAS# Precharge
This option sets the number of cycles required for the RAS to accumulate its charge before the SDRAM refreshes.
The default setting for the Active to Precharge Delay is Auto.
Precharge Delay
The default setting for the Precharge Delay is Auto.
System Memory Frequency
This field sets the frequency of the DRAM memory installed. The default setting is Auto. The other settings are
DDR266, DDR333, DDR320 and DDR400.
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.
Video BIOS Cacheable
The Setting Enabled allows caching of the video BIOS ROM at C0000h-F7FFFh, resulting in better video
performance. However, if any program writes to this memory area, a system error may result.
Memory Hole At 15M-16M
In order to improve performance, certain space in memory can be reserved for ISA cards. This memory must be
On-Chip Frame Buffer Size Memory
Allow user to select the amount of system memory pre-allocated by the internal graphics device.
Phoenix - AwardBIOS CMOS Setup Utility