Mitsubishi Electric Apricot XEN pentium, Руководство пользователя

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XEN OWNER'S HANDBOOK 4/15
SETUP
Chapter 4
Advanced Setup
This menu allows you change settings for cache, ROM
shadowing and hard disks. When you select Advanced Setup,
a menu appears which includes a warning telling you that if
these advanced hardware features are incorrectly configured,
the system may malfunction.
Cache Control
When you choose Cache Control, a new two line submenu
appears, the lines are cache state and cache size.
Cache State
Under this category, you can elect to enable or disable the
second level cache i.e. the cache external to the processor.
The default setting is Enabled , and this should normally be
used. If you use old, speed sensitive, software you may find
that it requires the cache to be
Disabled .
Cache Size
This line duplicates one of the items in the System Summary
display. It reports the amount of cache fitted to the
motherboard and is not editable.
ROM Shadowing
ROM shadowing is a process where the contents of Read Only
Memory (ROM) are copied into faster Random Access Memory
(RAM) during system startup. RAM is inherently quicker than
ROM, and once the information is copied into RAM it can be
accessed much faster, improving system performance.
When you choose ROM Shadowing, a submenu containing
seven lines appears. Six of these seven lines split the memory
address range between C0000h and F0000h into 32k segments,
the seventh covers the standard ISA 64k BIOS area from
F0000h to FFFFFh.