3-11
BIOS Setup
Boot To OS/2 for DRAM > 64MB
This allows you to run the OS/2
®
operating system with DRAM larger than
64MB. When you choose No, you cannot run the OS/2
®
operating system
with DRAM larger than 64MB. But it is possible if you choose Yes.
APIC Interrupt Mode
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, Disabled.
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 ver-
sion 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 locations 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.
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