diff -urN --exclude-from=/home/davej/.exclude linux-2.4.15pre6/arch/i386/kernel/io_apic.c linux-ac/arch/i386/kernel/io_apic.c
--- linux-2.4.15pre6/arch/i386/kernel/io_apic.c	Mon Nov 19 13:40:54 2001
+++ linux-ac/arch/i386/kernel/io_apic.c	Mon Nov 19 14:09:18 2001
@@ -753,6 +753,7 @@
 	printk(KERN_DEBUG ".......     : PRQ implemented: %X\n", reg_01.PRQ);
 	printk(KERN_DEBUG ".......     : IO APIC version: %04X\n", reg_01.version);
 	if (	(reg_01.version != 0x01) && /* 82489DX IO-APICs */
+		(reg_01.version != 0x02) && /* 82801BA IO-APICs (ICH2) */
 		(reg_01.version != 0x10) && /* oldest IO-APICs */
 		(reg_01.version != 0x11) && /* Pentium/Pro IO-APICs */
 		(reg_01.version != 0x13) && /* Xeon IO-APICs */