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SDRAM Configuration [By SPD]
This parameter allows you to set the optimal timings for items 2–5, depending on
the memory modules that you are using. The default setting is [By SPD], which
configures items 2–5 by reading the contents in the SPD (Serial Presence Detect)
device. The EEPROM on the memory module stores critical information about the
module, such as memory type, size, speed, voltage interface, and module banks.
Configuration options: [User Defined] [By SPD]
The SDRAM parameters (items 2~5) become configurable only when
you set the SDRAM Configuration to [User Defined].
SDRAM CAS Latency [2.5T(DDR)]
This item controls the latency between the SDRAM read command and the time
the data actually becomes available.
SDRAM RAS to CAS Delay [3T]
This item controls the latency between the DDR SDRAM active command and the
read/write command.
SDRAM RAS Precharge Delay [3T]
This item controls the idle clocks after issuing a precharge command to the DDR
SDRAM.
SDRAM Active Precharge Delay [7T]
This item controls the number of DDR SDRAM clocks used for DDR SDRAM
parameters.
SDRAM 1T Command Control
Configuration options: [Disabled] [Enabled] [Auto]
SDRAM Bank Interleave
Configuration options: [Disabled] [2 Bank] [4 Bank] [Auto]
Graphics Aperture Size [64MB]
This feature allows you to select the size of mapped memory for AGP graphic data.
Configuration options: [4MB] [8MB] [16MB] [32MB] [64MB] [128MB] [256MB]
[512MB]
AGP Capability [4X Mode]
This motherboard supports the AGP 4X interface that enables enhanced graphics
performance with high bandwidth speeds up to 2.12GB/s. AGP4X is backward-
compatible. When set to [1X Mode], the AGP interface only provides a peak data
throughput of 266MB/s even if you are using an AGP 4X card.
Configuration options: [Auto] [1X Mode] [2X Mode] [4X Mode]
AGP Drive Strength [Auto]
Configuration options: [Auto] [Manual]
2-16
Chapter 2: BIOS Information
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