Correct BIOS setting for APIC?

[Bearzilla]

I'm installing my new P4 2.8G in an IT7-MAX2 v2.0 (845PE chipset) motherboard . There is an option in the BIOS for enable/disable APIC (Advanced Programmable Interrupt Controller). I know the APIC is necessary for SMP and Hyperthreaded CPU's (like the 3.06G) to extend IRQ sharing. I heard that disabling the APIC on single-processor non-HT machines is better.

Anyone know the correct BIOS setting for the APIC on a single processor?

[Caleb]

im really not that good with hardware..

but as far as i heard, disabling APIC will result in less IRQ sharing, but you will lose power saving capabilities and auto shutdown and stuff..

but hey, i may be wrong.

[Inertia]

less irq sharing could be a bad thing, theres only 15 of em :p , and it could result in conflicts, i like the ACPI (Advanced Configuration and Power Interface) setup

Edited December 15, 2002 by Inertia