MSI MS-6580 Manual page 59

MS-6580 ATX Mainboard
version supported by your operating system. To find out which version to use,
consult the vendor of your operating system. Settings: 1.4, 1.1.
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) and external cache (also known as L2 or level 2 cache). Setting
options: Disabled, WriteBack, WriteThru. WriteBack & WriteThru refer to the
cache's write policy, which determines how it handles writes to memory loca-
tions that are currently being held in cache. The WriteBack cache policy will
produce the best performance.
Flash Protection
This function protects the BIOS from accidental corruption by unauthorized
users or computer viruses. When enabled, the BIOS data cannot be changed
when attempting to update the BIOS with a Flash utility. To successfully
update the BIOS, you'll need to disable this Flash protection function. Set-
ting options: Enabled, Disabled.
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
3-12
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.