MSI K9N2GM-FIH User Guide - Page 55

BIOS Setup tRAS W hen the DRAM Timing Mode sets to [Manual], this field is adjustable. This setting determines the time RAS takes to read from and write to memory cell. tRP W hen the DRAM Timing Mode sets to [Manual], this field is adjustable. This setting 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, refresh may be incomplete and DRAM may fail to retain data. This item applies only when synchronous DRAM is installed in the system. 1T/2T Memory Timing This item controls the SDRAM command rate. Select [1T] makes SDRAM signal controller to run at 1T (T=clock cycles) rate. Selecting [2T] makes SDRAM signal controller run at 2T rate. FSB/DRAM Ratio This setting controls the ratio of CPU FSB Clock & DRAM Frequency to enable the CPU & DRAM to run at different frequency combinations (non-synchronous overclocking). Please note that the setting options vary according to the CPU FSB Clock preset. HT Link Speed This field allows you to select the Hyper transport link speed. Adjust PCI-E Frequency (MHz) This field allows you to select the PCI-Express frequency (in MHz). Auto Disable DRAM/PCI Clock W hen set to [Enabled], the system will remove (turn off) clocks from empty DRAM/ PCI slots to minimize the electromagnetic interference (EMI). CPU Voltage (V) This item allows you to increase the CPU voltage. DRAM Voltage (V) Adjusting the memory voltage can increase the memory speed. NB Voltage (V) Adjust the North Bridge chipset voltage. HT Link Voltage (V) Adjust the Hyper-Transport link voltage. 3-21