ASRock 775Dual-915GV User Manual - Page 30

Chipset Configuration, Chipset Configuration

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3.3.2 Chipset Configuration BIOS SETUP UTILITY Advanced Chipset Configuration DRAM Frequency [Auto] Flexibility Option [Disabled] Configure DRAM Timing by SPD [Enabled] DRAM CAS# Latency [Auto] Onboard VGA Selection Aperture Size Select DVMT Mode Select DVMT/FIXED Memory [Auto] [256MB] [DVMT Mode] [Maximum DVMT] OnBoard LAN OnBoard AC'97 Audio OnBoard MC'97 Modem [Enabled] [Auto] [Auto] VCCM VDDQ [Low] [Low] Options Auto 200MHz (DDRII400) 266MHz (DDRII533) +F1 F9 F10 ESC Select Screen Select Item Change Option General Help Load Defaults Save and Exit 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)]. If DDRII DIMM is inserted to DDRII slot, you may select [200MHz (DDRII 400)], [266MHz (DDRII 533)] as operating frequency. 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# 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. For DDR DIMM: Configuration options are [3], [2.5], [2], and [Auto]. For DDRII DIMM: Configuration options are [5], [4], [3], 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]. 30

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3.3.2
3.3.2
3.3.2
3.3.2
3.3.2 Chipset Configuration
Chipset Configuration
Chipset Configuration
Chipset Configuration
Chipset Configuration
BIOS SETUP UTILITY
v02.54 (C) Copyright 1985-2005, American Megatrends, Inc.
Chipset Configuration
DRAM Frequency
Flexibility Option
Configure DRAM Timing by SPD
DRAM CAS# Latency
Onboard VGA Selection
Aperture Size Select
DVMT Mode Select
DVMT/FIXED Memory
OnBoard LAN
OnBoard AC'97 Audio
OnBoard MC'97 Modem
VCCM
VDDQ
[Disabled]
[Enabled]
[Auto]
[Auto]
[256MB]
[DVMT Mode]
[Maximum DVMT]
[Enabled]
[Auto]
[Auto]
[Low]
[Low]
[Auto]
Select Screen
Select Item
+-
Change Option
F1
General Help
F10
Save and Exit
ESC
Exit
F9
Load Defaults
Options
200MHz
(DDRII400)
266MHz
(DDRII533)
Auto
Advanced
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)]. If DDRII DIMM is inserted to DDRII slot, you may select [200MHz
(DDRII 400)], [266MHz (DDRII 533)] as operating frequency.
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# 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. For DDR DIMM:
Configuration options are [3], [2.5], [2], and [Auto]. For DDRII DIMM:
Configuration options are [5], [4], [3], 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].