MSI KT4A-V User Manual page 61

Disable the function if 16MB SDRAM is installed. Settings: Disabled,
2-Way and 4-Way.
DDR400 tWRT Timing
This controls the timing delay (in clock cycles) before DDR400 starts a
write command after receiving it. Settings: 1T, 2T, 3T.
the delay time while 1T provides the least timing delay. This option is
effective only if DDR400 is running.
SDRAM Burst Length
This setting allows you to set the size of Burst-Length for DRAM. Burst-
ing 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 ac-
tual 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 al-
lows SDRAM signal controller to run at 1T (T=clock cycles) rate. Se-
lecting 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 mini-
mum 1 CLK. Selecting Enabled to shorten the turnaround interval to
improve the performance. Setting options: Disabled, Enabled.
BIOS Setup
3T increases
3-15