Instruction manual

3-11
BIOS Setup
Boot To OS/2
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.
Internal 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:
APIC Function
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.
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.