MSI K9A2VM-FD User Guide - Page 54

MS-7501 Mainboard Advance DRAM Configuration DRAM Timing Mode Setting to [Auto] enables DRAM CAS# Latency automatically to be determined by BIOS based on the configurations on the SPD (Serial Presence Detect) EEPROM on the DRAM module. Bank Interleaving This field selects 2-bank or 4-bank interleave for the installed SDRAM. Disable the function if 16MB SDRAM is installed. 1T/2T Memory Timing This field controls the SDRAM command rate. Selecting [1T] makes SDRAM signal controller to run at 1T (T=clock cycles) rate. Selecting [2T] makes SDRAM signal controller run at 2T rate. Software Memory Hole This field enables software to remap the physical memory to the address higher than 00E0. (This item only works in 64-bit OS.) Dual Channel Mode In Dual-Channel mode, the memory modules can transmit and receive data with two data bus lines simultaneously. Enabling Dual-Channel mode can enhance the system performance. FSB/Memory Ratio This item will allow you to adjust the FSB/Ratio of the memory. Adjusted DRAM Frequency (MHz) It shows the adjusted DDR memory frequency. Read only. HT Link Speed This item allows you to set the Hyper Transport link speed. Adjust PCI-E Frequency (MHz) This item allows you to set the PCI Express frequency (in MHz). 3-20