Owner's Manual

K8VGA-M BIOS Setup
User’s Manual
18
4.2 DRAM CONFIGURATION
4.2.1 Max Memclock (MHz)
Places an artifical memory clock limit on the system. Memory is
prevented from running faster than this frequency.
The Choices: 200 (Default), 166, 133, and 100.
4.2.2 CAS# Latency
This field specify the cas# latency, i.e. cas# to read data valid.
The Choices: CL=2.5 (Default), CL=3.0, CL=2.0
4.2.3 RAS# to CAS# Delay (tRCD)
This field specifies the RAS# to CAS# Delay to read/ write command
to the same bank. Typically -20 Nsec.
The Choices: 3 BUS CLOCKS (Default), 2 BUS CLOCKS, 4 BUS
CLOCKS, 5 BUS CLOCKS, 6 BUS CLOCKS, 7 BUS CLOCKS
4.2.4 Min RAS# active time (tRAS)
This field specifies the minimum RAS# active time. Typically -45-60
Ns ec.
The Choices: 6 BUS CLOCKS (Default), 13 BUS CLOCKS, 14 BUS
CLOCKS, 15 BUS CLOCKS.
4.2.5 Row Precharge Time (tRP)
This field specifies the Row precharge Time. Precharge to Active or
Auto-Refresh of the same bank. Typically 20-24 Nsec.
The Choices: 3 BUS CLOCKS (Default), 2 BUS CLOCKS, 4 BUS
CLOCKS, 5 BUS CLOCKS, 6 BUS CLOCKS.