MSI K9AGM - Advanced Chipset Features

BIOS Setup
3-11
Advanced Chipset Features
DRAM Timing
The value in this field depends on performance parameters of the installed memory
chips (DRAM). Do not change the value from the factory setting unless you install
new memory that has a different performance rating than the original DRAMs.
CAS# Latency (Tcl)
This controls the CAS latency, which determines the timing delay (in clock cycles)
before SDRAM starts a read command after receiving it.
Min RAS# Active Time (Tras)
This setting determines the time RAS takes to read from and write to a memory cell.
RAS# Precharge Time (Trp)
This item controls the number of cycles for Row Address Strobe (RAS) to be allowed
to precharge. If insufficient time is allowed for the RAS to accumulate its charge
before DRAM refresh, refreshing may be incomplete and DRAM may fail to retain
data. This item applies only when synchronous DRAM is installed in the system.
RAS# to CAS# Delay (Trcd)
When DRAM is refreshed, both rows and columns are addressed separately. This
setup item allows you to determine the timing of the transition from RAS (row address
strobe) to CAS (column address strobe). The less the clock cycles, the faster the
DRAM performance.
VGA Share Memory Size
The system shares memory to the onboard VGA card. This setting controls the exact
memory size shared to the VGA card.
7327v1.0-3_ami.p65 2007/4/13, 上午 10:4011