Intel D850MD Product Guide - Page 49
Extended Configuration Submenu, Maintenance - drivers
UPC - 735858147149
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Using the Setup Program Extended Configuration Submenu Maintenance Main Advanced Security Extended Configuration Power Boot Exit The submenu shown in Table 9 is used to set system control and video memory cache mode. This submenu becomes available when User Defined is selected under Extended Configuration. Table 9. Extended Configuration Submenu Feature Extended Configuration Video Memory Cache Mode Options • Default (default) • User-Defined • USWC • UC (default) Description User-Defined allows setting memory control and video memory cache mode. If selected here, will also display in the Advanced Menu as "Extended Menu: Used." 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. Well suited for applications not supporting Write Combining. 49