MSI 865PE Neo2-P Platinum Edition User Manual page 54

MPS Revision
This field allows you to select which MPS (Multi-Processor Specification)
version to be used for the operating system. You need to select the MPS
version supported by your operating system. Settings: 1.4 and 1.1.
APIC ACPI SCI IRQ
This field is used to enable or disable the APIC (Advanced Programmable Inter-
rupt 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:
Option
Disabled
Enabled
Cached
Description
The specified ROM is not copied to RAM.
The contents of specified ROM are copied to RAM
for faster system performance.
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.
BIOS Setup
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