Toshiba Tecra M1 Maintenance Manual page 216

3 Tests and Diagnostics
(b) CPU Cache
Use this option to enable or disable the CPU cache.
Enabled
Disabled
When enabled is selected, a subwindow similar to the one below is displayed to
select the cache write policy. The options for this setting are Write-back (default)
and Write-through for CPU cache.
Write-back policy provides better system performance, because main memory is
accessed only when necessary to update the cache contents with changes in main
memory. Write-through policy accesses main memory every time data is handled by
the processor.
(c) Level 2 Cache
Use this option to enable or disable the level 2 cache.
Enabled
Disabled
(d) Dynamic CPU Frequency mode
Use this option to choose a setting from the followings.
Dynamically Switchable
Always High
Always Low
(e) Auto Power On
3-88
Enables the CPU cache. (Default)
Disables the CPU cache.
OPTION
Write policy
Enables the level 2 cache. (Default)
Disables the level 2 cache.
Enables Intel SpeedStep technology. When the computer is in
use, the CPU power consumption and clock speed are
automatically switched when necessary. (Default)
Disables Intel SpeedStep technology and always runs the
processor at its fastest speed.
Disables Intel SpeedStep technology and always runs the
processor at low power consumption and low speed.
= Write-back
TECRA M1 Maintenance Manual (960-436)
3.29 SETUP