4-12
Chapter 4
Option
Description
Disabled
The specified ROM is not copied to RAM.
Enabled
The contents of specified ROM are copied to RAM
for faster system performance.
Cached
The contents of specified ROM are not only copied
to RAM, the contents of the ROM area can be writ-
ten to and read from cache memory.
APIC ACPI SCI IRQ
This field is used to enable or disable the APIC (Advanced Programmable
Interrupt Controller). Due to compliance to PC2001 design guide, the system is
able to run in APIC mode. Enabling APIC mode will expand available IRQs
resources for the system. Settings:
Enabled
and
Disabled
.
CPU L1 & L2 Cache
Cache memory is additional memory that is much faster than conventional
DRAM (system memory). When the CPU requests data, the system transfers
the requested data from the main DRAM into cache memory, for even faster
access by the CPU. The setting controls the internal cache (also known as L1
or level 1 cache). Setting to
WriteBack
will speed up the system performance.
System BIOS Cacheable
Selecting
Enabled
allows caching of the system BIOS ROM at F0000h-FFFFFh,
resulting in better system performance. However, if any program writes to this
memory area, a system error may result. Setting options:
Enabled, Disabled
.
C000, 32k Shadow
This item specifies how the contents of the adapter ROM named in the item are
handled. Settings are described below:
