Intel MB890 user manual Advanced Chipset Features, DRAM Timing Selectable, CAS Latency Time

BIOS SETUP

Advanced Chipset Features

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	2		Menu Level >
Active to Precharge Delay	6
DRAM RAS# to CAS# Delay	3
DRAM RAS# Precharge	3
DRAM Data Integrity Mode	ECC
MGM Core Frequency	Auto Max 266MHz
System BIOS Cacheable	Enabled
Video BIOS Cacheable	Enabled
Memory Hole at 15M-16M	Disabled
Delayed Transaction	Enabled
Delay Prior to Thermal	16 Min
AGP Aperture Size (MB)	64
** On-Chip VGA Setting **
On-Chip VGA	Enabled
On-Chip Frame Buffer Size	32MB
Boot Display	CRT+DVI
TV Standard	Off
Video Connector	Automatic
TV Format	Auto
Panel Scaling	Auto
Panel Number	1024x768	18bit SC

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.

Active to Precharge Delay

The default setting for the Active to Precharge Delay is 7.

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.

32 MB890 User’s Manual