ASRock 775i915PL-SATA2 manual Chipset Configuration

3.3.2 Chipset Configuration

BIOS SETUP UTILITY

Advanced
Chipset Configuration			Options
DRAM Frequency	[Auto]	Auto
Flexibility Option	[Disabled]	166MHz		(DDR333)
		200MHz		(DDR400)
Configure DRAM Timing by SPD [Enabled]
DRAM CAS# Latency	[Auto]
Boot Graphic Adapter Priority	[PCIE/PCI]
OnBoard LAN	[Enabled]		Select Screen
OnBoard AC'97 Audio	[Auto]
			Select Item
VCCM	[Auto]	+ -	Change Option
		F1	General Help
VDDQ	[Low]
		F9	Load Defaults
		F10	Save and Exit
		ESC	Exit

v02.54 (C) Copyright 1985-2005, American Megatrends, Inc.

DRAM Frequency

If [Auto] is selected, the motherboard will detect the memory module(s) inserted and assigns appropriate frequency automatically. You may also select other value as operating frequency: [166MHz (DDR 333)], [200MHz (DDR 400)].

Flexibility Option

The default value of this option is [Disabled]. It will allow better tolerance for memory compatibility when it is set to [Enabled].

Configure DRAM Timing by SPD

Select [Enabled] will configure the following items by the contents in the SPD (Serial Presence Detect) device. If you select [Disabled], you will find the items “DRAM RAS# to CAS# Delay”, “DRAM RAS# Precharge”, and “DRAM RAS# Activate to Precharge” appear to allow you adjusting them.

DRAM CAS# Latency

Use this item to adjust the means of memory accessing. Configuration options: [3], [2.5], [2], and [Auto].

DRAM RAS# to CAS# Delay

This controls the latency between the DRAM active command and the read / write command. Configuration options: [2 DRAM Clocks], [3 DRAM Clocks], [4 DRAM Clocks], and [5 DRAM Clocks].

DRAM RAS# Precharge

This controls the idle clocks after a precharge command is issued. Configuration options: [2 DRAM Clocks], [3 DRAM Clocks], [4 DRAM Clocks], and [5 DRAM Clocks].

DRAM RAS# Activate to Precharge

This controls the number of DRAM clocks for TRAS. Configuration options: [4 DRAM Clocks], [5 DRAM Clocks], [6 DRAM Clocks], [7 DRAM Clocks], [8 DRAM Clocks], [9 DRAM Clocks], [10 DRAM Clocks], [11 DRAM Clocks], [12 DRAM Clocks], [13 DRAM Clocks], [14 DRAM Clocks],

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