ASRock 775i45GV User Manual - Page 26
SDRAM Precharge Delay
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Chipset Configuration: Advanced AMIBIOS SETUP UTILITY - VERSION 3.31a Chipset Configuration [ Setup Help ] AGP Aperture Size ICH Delayed Transaction USB Controller USB Device Legacy Support CPU Thermal Throttling DRAM Write Throttling AGP/PCI Frequency ******** DRAM Timing ******** SDRAM CAS Latency Configure SDRAM Timing by SPD SDRAM RAS# Precharge 64MB Disabled Enabled Disabled Enabled Enabled 67.2MHz, 33.6MHz Auto Disabled 3 Clocks to select the size of mapped memory for graphics data. F1:Help Esc:Previous Menu :Select Item +/-:Change Values Enter:Select Sub-Menu F9:Setup Defaults F10:Save & Exit AGP Aperture Size: It refers to a section of the PCI memory address range used for graphics memory. We recommend that you leave this field at the default value unless your AGP card requires other sizes. ICH Delayed Transaction: Select [Enabled] will enable delayed transactions for internal register, FWH, and LPC interface accesses. USB Controller: Use this to enable or disable the use of USB controller. USB Device Legacy Support: Use this to enable or disable support to emulate legacy I/O devices such as mouse, keyboard,... etc. CPU Thermal Throttling: Select [Enabled] will enable P4 thermal control circuit to keep CPU from overheated. DRAM Write Throttling: Select [Enabled] will enable north bridge thermal management to keep it from overheated. AGP/PCI Frequency: You may select among four sets of configuration options as the AGP/PCI frequency. The default value is [67.2MHz, 33.6MHz], and other configuration options are: [72.0MHz, 36.0MHz], [64.0MHz, 32.0MHz], [76.0MHz, 38.4MHz]. SDRAM CAS Latency: This parameter controls the latency between the read command and the time the data available. Configure SDRAM Timing by SPD: SDRAM RAS# Precharge: This parameter controls the number of idle clocks after a precharge command is issued. SDRAM RAS# to CAS# Delay: This parameter controls the latency between the active command and the read/write command. SDRAM Precharge Delay: This parameter controls the minimum latency between the active command and the precharge command. No-Excute Memory Protection: 26