Computer Computer Hardware User Manual

3-14
MS-6775 ATX Mainboard
Bank Interleave
This field selects 2-bank or 4-bank interleave for the installed SDRAM.
Disable the function if 16MB SDRAM is installed. Settings: Disabled,
Auto, 2-Way and 4-Way.
SDRAM Burst Length
This setting allows you to set the size of Burst-Length for DRAM. Bursting
feature is a technique that DRAM itself predicts the address of the next
memory location to be accessed after the first address is accessed. To
use the feature, you need to define the burst length, which is the actual
length of burst plus the starting address and allows internal address
counter to properly generate the next memory location. The bigger the
size, the faster the DRAM performance. Settings: 4 QW, 8 QW.
SDRAM 1T Command
This setting controls the SDRAM command rate. Selecting Enabled
allows SDRAM signal controller to run at 1T (T=clock cycles) rate.
Selecting Disabled makes SDRAM signal controller run at 2T rate. 1T is
faster than 2T. Setting options: Disabled, Enabled.
Fast Command
This item controls the internal timing of CPU. Selecting Ultra allows CPU
to handle data/instructions at the fastest speed. Fast enables CPU to
handle at a faster speed, while Normal let CPU handle them at the slowest
rate.
Fast R-2-R Turnaround
Burst read operation can be interrupted by new read of any bank.
Random column access is allowed. READ to READ interval is minimum 1
CLK. Selecting Enabled to shorten the turnaround interval to improve
the performance. Setting options: Disabled, Enabled.
AGP Timing Control
Press <Enter> and the following sub-menu appears.