B&R Industries Power Panel 300, Руководство пользователя

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Software • Power Panel 300 with BIOS
Power Panel 300/400 User's Manual V 2.30
1.4.5 Memory and cache optimization
Warning!
The parameters in this screen are for system designers, service personnel, and
technically competent users only. Only modify those settings that you completely
understand.
Incorrectly setting "Memory optimization" values can cause instability and even
cause the entire system not to boot. If the Power Panel can no longer be booted,
then the default BIOS values can be restored by pushing the reset button three times
(see section 1.5.8 "Restoring the default BIOS values" on page 479).
Information:
More detailed information about the meaning and effects of the settings can also be
found in the corresponding user's manual for the processor.
Figure 300: Memory and cache optimization
BIOS setting Meaning Setting options Effect
Cache mode Using cache mode, write accesses are
determined on the cache. Write back The data is only written in the main memory if
necessary (main memory and cache do not have
the same
information content).
Write through Data is written to the cache and to the main
memory.
Cache allocate The cache is divided into memory levels. Disabled Disables this function.
Enabled Enables this function.
Table 161: BIOS memory and cache optimization menu
Memory and Cache Optimization
Cache Mode: Write-Back
Cache Allocate: Disabled
>>Refresh Rate: Auto
XpressROM Setup