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AcerPower 4100 User’s Guide
3-36
External Cache
This parameter enables or disables the secondary cache memory.
The default setting is
Enabled
.
Cache Scheme
This parameter sets the cache to
Write-through
or
Write-back
modes.
Write-back
updates the cache but not the memory when there is a write instruction. It
updates the memory only when there is an inconsistency between the cache and the memory.
Write-through
updates both the cache and the memory whenever there is a write
instruction.
Memory at 15MB-16MB Reserved For
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.
Some VGA cards have required settings for
this feature. Check your VGA card manual
before setting this parameter.
Memory Parity Mode
This parameter allows you to enable or disable the ECC and parity check features. Select
Parity
to enable the parity check feature. Select
ECC
to enable the ECC feature. The ECC
feature enables BIOS to detect and correct data errors.
Disable this parameter if you want to disregard the function.