Chapter 2:BIOS Configuration

Internal Cache

This option enables or disables the L1 internal Cache.

System BIOS Cacheable

When set to Enabled, the contents of the F0000h system memory segment can be read from or written to cache memory. The content of this memory segment is always copied from the BIOS ROM to system RAM for faster execution. The setting is either Enabled or Disabled.

C000,16K Shadow

C400,16K Shadow

These options specify how the 32 KB of video ROM at C0000h is treated. The settings are: Enabled (default), Disabled and Cached.

C800,16K Shadow

CC00,16K Shadow

D000,16K Shadow

D400,16K Shadow

D800, 16K Shadow

DC00,16K Shadow

These options enable shadowing of the contents of the ROM area named in the option. The ROM area not used by ISA adapter cards is allocated to PCI adapter cards. The settings are: Disabled (default), Cached and Enabled.

Advanced Chipset Setup

USB Function

Set this option to Enabled to enable USB (Universal Serial Bus) support. The setting is either Enabled or Disabled (default).

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Intel Raptor AT manual Advanced Chipset Setup, Internal Cache, System Bios Cacheable, C000,16K Shadow C400,16K Shadow