Asrock P4I48 User Manual

3 3

Configure DRAM Timing by SPD

Select [Enabled] will configure the following items by the contents in the

SPD (Serial Presence Detect) device.

DRAM CAS# Latency

Use this item to adjust the means of memory accessing. Configuration

options: [Auto], [2.5], [2], and [3].

DRAM RAS# Precharge

This controls the idle clocks after a precharge command is issued.

Configuration options: [4 Clocks], [3 Clocks], and [2 Clocks].

DRAM RAS# to CAS# Delay

This controls the latency between the DRAM active command and the

read / write command. Configuration options: [4 Clocks], [3 Clocks],

and [2 Clocks].

DRAM Precharge Delay

This controls the number of DRAM clocks for RAS minimum. Configura-

tion options: [8 Clocks], [7 Clocks], [6 Clocks], and [5 Clocks].

DRAM Burst Length

DRAM Burst length can be set as [8] or [4].

Memory Hole

The default value of this item is [Disabled], or you may set the value of this

item as [15MB-16MB].

Init. Graphic Adapter Priority

This allows you to select [PCI/AGP] or [AGP/PCI] as the initial graphics

adapter priority.

Graphics Aperture  Size

It refers to a section of the PCI memory address range used for graphics

memory. It is recommended to leave this field at the default value unless the

installed AGP  card’s specifications requires other sizes.