Dram Cas Latency; Dram Command Rate - Albatron K8X890 Series User Manual

KM400A Series

DRAM CAS Latency

This item determines CAS Latency. When synchronous DRAM is installed, the number of clock
cycles of CAS latency depends on the DRAM timing. Do not reset this field from the default value
specified by the system designer. Options: 1.5、2、2.5、3
Precharge to Active (Trp)
You can set the time to precharge. Options: 5T、2T、3T、4T
Active to Precharge (Tras)
This item allows you to select DRAM Active to Precharge Delay.
Options: 7T、6T、8T、9T
Active to CMD (Trcd)
Select the DRAM delay time when being read. Options: 5T、2T、3T、4T

DRAM Command Rate

This item determines DRAM Command Rate.
Options: 2T Command (default)、1T Command
AGP & P2P Bridge Control
Press <Enter> to enter next page for AGP & P2P Bridge Control.
AGP Aperture Size
Select the size of the Accelerated Graphics Port (AGP) aperture. The aperture is a portion of the PCI
memory address range dedicated for graphics memory address space. Host cycles that hit the aperture
range are forwarded to the AGP without any translation.
Options: 1G、512M、256M、128M (default)、64M、32M、16M、8M、4M
(The 1G and 512M options only appear when you install 8X AGP card.)
AGP Mode
This item allows you to select the AGP Mode. Options: 1X、2X、4X (default)
(*If you install the 8X AGP card, then the item will be lock in 8X option.)
AGP Driving Control
By choosing "Auto" the system BIOS will automatically set the AGP output buffer drive strength. By
choosing "Manual", it allows user to set the AGP output buffer driver strength.
AGP Driving Value
While the AGP Driving Control option is set to "Manual", it allows the user to set AGP Driving
Value. Options: DA (default)、00~FF
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