BIOS Setup Program
97
4.2.1 Extended Configuration Submenu
To access this submenu, select Maintenance on the menu bar and then Extended Configuration.
Maintenance
Main Advanced Security Power Boot Exit
Extended Configuration
The submenu represented by Table 62 is for setting video memory cache mode. This submenu
becomes available when User Defined is selected under Extended Configuration.
Table 62. Extended Configuration Submenu
Feature Options Description
Extended Configuration • Default
(default)
• User Defined
User Defined
allows you to set memory control and video
memory cache mode. If selected here, it will also display
in the Advanced menu as “Extended Menu: Used.”
Video Memory Cache Mode • USWC
• UC (default)
Selects Uncacheable Speculative Write-Combining
(USWC) video memory cache mode. Full 32-byte contents
of the Write Combining buffer are written to memory as
required. Cache lookups are not performed. Both the
video driver and the application must support Write
Combining.
Selects UnCacheable (UC) video memory cache mode.
This setting identifies the video memory range as
uncacheable by the processor. Memory writes are
performed in program order. Cache lookups are not
performed. This setting is well suited for applications that
do not support Write Combining.
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