MSI MS-6380 - Manual (Page 56)

Chapter 3
3-12
APIC 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 and Disabled.
MPS Version Control For OS
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. To find out which version to
use, consult the vendor of your operating system. Settings: 1.4 and 1.1.
OS Select for DRAM > 64MB
This allows you to run the OS/2
® operating system with more than 64MB
DRAM. When you choose Non-OS2, you cannot run the OS/2 ® operating
system with more than 64MB DRAM. But it is possible if you choose OS2.
Video BIOS Cacheable
Setting to Enabled allows caching of the Video BIOS ROM at C0000h-
F7FFFh and leads to better video performance. But any program attempt to
write to this memory area will cause a system error.