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Menu Item
Cache Base 0-512K
Cache Base 512-640K
Cache Extended Memory
Area
Cache C800-CBFF
Cache CC00-CFFF
Cache D000-D3FF
Cache D400-D7FF
Cache D800-DBFF
Cache DC00-DFFF
3-14 Configuring the System
Advanced Menu
Settings (default is bold)
Uncached, Write Through, Write Protect,
Write Back
Controls caching of 512K base memory.
Uncached, Write Through, Write Protect,
Write Back
Controls caching of 512K-640K base
memory.
Uncached, Write Through, Write Protect,
Write Back
Controls caching of system memory above
one MB.
Disabled, Write Through, Write Protect,
Write Back
Setting at Disabled prohibits caching.
Setting at Write Through permits writes to be
cached and sent to main memory at once.
Setting at Write Protect causes the BIOS to
ignore writes.
Setting at Write Back permits write caching
but delays sending data to main memory
until necessary.
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