User Guide

Introducing the BIOS
User’s Manual
4-17
APIC Select:
Two options are available: Disabled or Enabled. The default setting is Enabled. If you set to Enabled, the
next item will be available to choose. When you set it to Disabled, the system will use the default six PCI
IRQs for all devices, and will not increase the number of PCI IRQs.
MPS Revision:
This option specifies which version of MPS the motherboard will use.
Two options available: 1.1 or 1.4, The default setting is 1.4. MPS stands for Multi-Processor
Specification. If you use an older operating system for dual processor executing, please set this option to
1.1.