Asus A7V8X-X - Manual (Page 47)

ASUS A7V8X-X Motherboard 2-17
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 RAS Active Precharge Delay [7T]
This item controls the number of DDR SDRAM clocks used for DDR SDRAM
parameters.
SDRAM 1T Command Control [Auto]
Configuration options: [Disabled] [Enabled] [Auto]
SDRAM Bank Interleave [Auto]
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] [1024MB]
The [1024MB] and [512MB] configuration options are available only when you
use AGP 8X graphics card.
AGP Capability [8X Mode]
This motherboard supports the AGP 8X interface that enables enhanced graphics
performance with high bandwidth speeds up to 2.12GB/s. AGP8X-X 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 8X card.
Configuration options: [Auto] [1X Mode] [2X Mode] [4X Mode] [8X Mode]