American Megatrends MAN-759 manual Disabled

Advanced Setup, Continued

L1/L2 Cache This option sets the type of caching algorithm used by the L1 internal cache memory on the CPU and the L2 secondary cache memory. The settings are WriteBack, WriteThru, or Disabled. The Optimal and Fail-Safe default settings are WriteBack.

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 contents of this memory segment are always copied from the BIOS ROM to system RAM for faster execution. The settings are Enabled or Disabled. The Optimal default setting is Enabled. The Fail-Safe default setting is Disabled.

Caching Controller Set this option to Present if a caching controller is installed in the computer. The settings are Present or Absent. The Optimal and Fail-Safe default settings are Absent.

Video Shadow C000,32K This option specifies how the 32 KB of video ROM at C0000h is treated. The settings are:

Setting	Description
Disabled	The contents of the video ROM are not copied to RAM.
Enabled	The contents of the video ROM area from C0000h - C7FFFh
	are copied (shadowed) from ROM to RAM for faster
	execution.
Cached	The contents of the video ROM area from C0000h - C7FFFh
	are copied from ROM to RAM and can be written to or read
	from cache memory.

The Optimal default setting is Cached. The Fail-Safe default setting is

Disabled.

Cont’d

Chapter 2 WINBIOS Setup 43