ASRock X533 User Manual - Page 21

3.6 Advanced Chipset Setup AMIBIOS SETUP UTILITY - VERSION 3.31a Advanced Chipset Setup [ Setup Help ] Spread Spectrum CPU Host Frequency Actual Frequency CPU Ratio Selection SDRAM Frequency AGP Mode AGP Aperture Size CPU Read DRAM Fast Ready Read Around Write CPU R/W DRAM 0WS PCI Delay Transaction USB Controller USB Device Legacy Support Disabled Auto 133MHz Locked 266MHz 4x 64MB Disabled Disabled Disabled Disabled Enabled Disabled to enable or disable the feature of spread spectrum. F1:Help Esc:Previous Menu :Select Item +/-:Change Values Enter:Select Sub-Menu F9:Setup Defaults F10:Save & Exit Spread Spectrum This field should always be "Disabled" for better system stability. CPU Host Frequency This allows you to set the front side bus frequency for the installed processor. [Auto] The motherboard detects the jumper setup and sets the CPU host frequency automatically. [Manual] This allows user to set CPU host frequency manually. However, this is not recommended unless user thoroughly knows the feature. Wrong setup may cause problems during operation. CPU Ratio Selection This shows current CPU host frequency of the installed motherboard. SDRAM Frequency If [Auto] is selected, the motherboard will detect the memory module(s) inserted and assigns appropriate frequency automatically. You may also select [200MHz] or [266MHz] as the operating frequency for DDR, or you may select [100MHz] or [133MHz] as the operating frequency for SDR. AGP Mode The default is 4X. You can also choose 1X or 2X for older version of VGA cards. 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. 21