Nova 32 bits on older Pentium 4 computer.

Udo Steinberg udo at ...121...
Mon Jan 21 22:08:59 CET 2013

On Mon, 21 Jan 2013 14:54:23 -0500 Paul Dufresne (PD) wrote:

PD> "Oh did I say one more thing? There's more. Some motherboards have a
PD> thingy that you must write to redirect the interrupts from the 8259's
PD> to the IOAPIC. This is done by writing 0x70 to port 0x22 and 0x01 to
PD> port 0x23. Also, you may want to disable the 8259's completely. I do
PD> this by writing 0xFF to ports 0x21 and 0xA1. So I disable the 8259's
PD> first, then program the IOAPIC, then write the ICMR (0x22,0x23) ports
PD> to accept IOAPIC interrupts."

I don't think that applies to your chipset at all.

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