JETWAY 845CAR1A User Manual

Contents

JETWAY 845CAR1A User Manual Manual pdf 30 page image

273-6 Advanced Chipset FeaturesThe Advanced Chipset Features Setup option is used to change the values of the chipsetregisters. These registers control most of the system options in the computer.CMOS Setup Utility – Copyright(C) 1984-2001 Award SoftwareAdvanced Chipset FeaturesItem Help> DRAM Timing Settings Press EnterSystem BIOS Cacheable EnabledVideo RAM Cacheable EnabledMemory Hole At 15M-16M DisabledDelay Transaction EnabledAGP Aperture Size 64MBMenu Level >Move Enter:Select +/-/PU/PD:Value F10:Save ESC:Exit F1:General HelpF5:Previous Values F6:Optimized Defaults F7:Standard DefaultsDRAM Timing SettingsPlease refer to section 3-6-1System BIOS CacheableSelecting Enabled allows caching of the system BIOS ROM at F0000h-FFFFFh, resulting inbetter system performance. However, if any program writes to this memory area, a systemerror may result. The settings are: Enabled and Disabled.Video RAM CacheableSelect Enabled allows caching of the video BIOS, resulting in better system performance.However, if any program writes to this memory area, a system error may result. Thesettings are: Enabled and Disabled.Memory Hole At 15M-16MYou can reserve this area of system memory for ISA adapter ROM. When this area isreserved, it cannot be cached. The user information of peripherals that need to use this areaof system memory usually discusses their memory requirements. The settings are: Enabledand Disabled.Delay TransactionThe chipset has an embedded 32-bit posted write buffer to support delay transactions cycles.Select Enabled to support compliance with PCI specification version 2.1. The settings are:Enabled and Disabled.