29Block mode is also called block transfer, multiple commands, or multiple sector read/write. Ifyour IDE hard drive supports block mode (most new drives do), select Enabled for automaticdetection of the optimal number of block read/writes per sector the drive can support. Thesettings are: Enabled, Disabled.3-7-2 OnChip Device FunctionCMOS Setup Utility – Copyright(C) 1984-2002 Award SoftwareOnChip Device FunctionItem HelpVIA 1394 Function Enabled →(for P4X400DAZ)VIA LAN Function Enabled →(for P4X400DAP/VIA LAN Function Boot ROM Disabled P4X400DAZ)AC97 Sound Device AutoGame Port Address 201Midi Port Address DisabledMidi Port IRQ 10USB Host Controller EnabledUSB Keyboard Legacy Support DisabledMenu Level >>↑↓→← Move Enter:Select +/-/PU/PD:Value F10:Save ESC:Exit F1:General HelpF5:Previous Values F6:Optimized Defaults F7:Standard DefaultsAC97 Sound DeviceThis item allows you to decide to enable/disable the chipset family to support AC97 Audio.The settings are: Enabled, Disabled.Game Port Address/Midi Port AddressThis will determine which Address the Game Port/Midi Port will use.USB Host ControllerSelect Enabled if your system contains a Universal Serial Bus (USB) controller and you havea USB peripherals. The settings are: Enabled, Disabled.USB Keyboard SupportSelect Enabled if your system contains a Universal Serial Bus (USB) controller and you havea USB keyboard. The settings are: Enabled, Disabled.3-7-3 Onboard Super IO Function