MSI MS-6777 User Guide - Page 57

MS-6777 M-ATX Mainboard FSB Spread Spectrum This item is used to enable or disable the FSB clock generator's Spread Specturm feature. When overclocking the FSB, always set it to Disabled. Options: Disabled, 0.50%, 1.00%. AGP Spread Spectrum This item is used to enable or disable the AGP clock generator's Spread Specturm feature. When overclocking the AGP slot, always set it to Disabled. Options: Disabled, 0.50%. AGP 8x Support This item is used to control the functionality of the AGP 3.0 8x interface. Options: Disabled, Enabled. Select Enabled only when your card supports this function. AGP Fast Write Support The item enables or disables the AGP Fast Write feature. The Fast Write technology allows CPU to write directly into the graphics controller without passing anything through system memory and improves 8x speed accordingly. Select Enabled only when your AGP card supports the feature. Options: Disabled, Enabled. System BIOS Cacheable Selecting Enabled allows caching of the system BIOS ROM at F0000hFFFFFh, resulting in better system performance. However, if any program writes to this memory area, a system error may result. Setting options: Enabled, Disabled. Video RAM Cacheable Selecting Enabled allows caching of the video memory (RAM) at A0000h to AFFFFh, resulting in better video performance. However, if any program writes to this memory area, a memory access error may result. Setting options: Disabled, Enabled. AGP Aperture Size This setting controls just how much system RAM can be allocated to AGP for video purposes. The aperture is a portion of the PCI memory address range dedicated to graphics memory address space. Host cycles that hit the aperture range are forwarded to the AGP without any translation. The option allows the selection of an aperture size of 32MB, 64MB, 128MB, 256 MB and 512MB. 3-14