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This parameter allows you to enable or disable the video cache buffer feature.
When you set this parameter to USWC, the uncacheable, speculative write-
combining (USWC) buffer in the CPU temporarily stores video write data. When
the USWC buffer is full, the CPU eventually writes the data to the memory
address A0000h~BFFFFh reserved for video data.
The default setting, Non-
cacheable, disables this feature.
To prevent memory address conflicts between the system and expansion boards,
reserve this memory range for the use of either the system or an expansion board.
Before setting this parameter, check your add-on card manual to determine if
your add-on card needs this memory space. If not, leave this parameter at the
default setting of System Use.
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