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System Cache
The default for the System Cache field is "Enabled." This
field controls both the primary and secondary caches.
Setting the system cache to "Disabled" will hurt
performance, but might be required when running software
which utilizes software timing loops and needs to be slowed
down to execute properly.
Boot Speed
Boot speed refers to the system CPU cycles. The default
boot speed is "Turbo." "De-turbo" mode slows the CPU by
disabling the system cache and adding increased refresh
cycles.
NOTE
8 MHz. If "De-turbo" is selected it will automatically
"Disable" the System Cache.
NumLock
The NumLock field turns controls whether the NumLock
key on the keyboard will be "On" or "Off" at bootup. The
default is "On."
Speaker
The default for the Speaker field is "Enabled." This field
allows you to select the speaker mounted on the system
board or a speaker connected to the internal connector.
(Systems come standard with a speaker mounted on the
system board.) Setting the Speaker field to "Disabled" will
turn off the on-board speaker.
"De-turbo" does not reduce the CPU speed to
NEC Drivers and Utilities 4-11
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