User Guide

system memory usually discusses their memory requirements. The settings are: Enabled and

Disabled.

3-6-1 DRAM Timing Setting

DRAM Timing Setting

Item Help

Auto Configuration Manual

RAS Active Time 6T

RAS Precharg Time 3T

RAS to CAS Delay 3T

Early CKE Delay Adjustment Auto

Early CKE Delay 1T Control Normal

Write Recovery Time 2T

Background Command Lead-off Time Delay 1T

Read/Write Cycles Lead-off Time Delay 1T

CAS Latency Auto

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RAS Active Time

Select the number of SCLKs for an access cycle. The settings are: Auto (Default), 6T, 7T, 5T,

4T.

RAS Precharge Time

If an insufficient number of cycles is allowed for the RAS to accumulate its charge before

DRAM refresh, the refresh may be incomplete and the DRAM may fail to retain date. Fast

gives faster performance; and Slow gives more stable performance. This field applies only

when synchronous DRAM is installed in the system. The settings are: Auto (default), 4T, 2T

and 3T.

RAS to CAS Delay

This field let’s you insert a timing delay between the CAS and RAS strobe signals, used when

DRAM is written to, read from, or refreshed. Fast gives faster performance; and Slow gives

more stable performance. This field applies only when synchronous DRAM is installed in the

system. The settings are: 2 and 3.

CAS Latency

When synchronous DRAM is installed, the number of clock cycles of CAS latency depends

on the DRAM timing. The settings are: Auto (Default) 2T and 3T.

3-6-2 AGP Function Settings