Hi, I have a Tyan S2520 motherboard and I am getting IO-APIC errors. I looked in the documentation in IO-APIC.txt and there was the following one-liner: echo -n pirq=; echo `scanpci | grep T_L | cut -c56-` | sed 's/ /,/g' Unfortunately, this doesn't work for me. There is no "T_L" in the output of scanpci for me. Any idea's would be greatly appreciated. Below is the output of scanpci on my system. Thanks for any help. Andy [EMAIL PROTECTED] PCI says configuration type 1 PCI probing configuration type 1 Probing for devices on PCI bus 0: pci bus 0x0 cardnum 0x00 function 0x0000: vendor 0x8086 device 0x1a21 Intel Device unknown pci bus 0x0 cardnum 0x01 function 0x0000: vendor 0x8086 device 0x1a23 Intel Device unknown pci bus 0x0 cardnum 0x02 function 0x0000: vendor 0x8086 device 0x1a24 Intel Device unknown pci bus 0x0 cardnum 0x1e function 0x0000: vendor 0x8086 device 0x244e Intel Device unknown pci bus 0x0 cardnum 0x1f function 0x0000: vendor 0x8086 device 0x2440 Intel Device unknown pci bus 0x0 cardnum 0x1f function 0x0001: vendor 0x8086 device 0x244b Intel Device unknown Probing for devices on PCI bus 1: Probing for devices on PCI bus 2: pci bus 0x2 cardnum 0x1f function 0x0000: vendor 0x8086 device 0x1360 Intel Device unknown Probing for devices on PCI bus 3: pci bus 0x1 cardnum 0x08 function 0x0000: vendor 0x8086 device 0x2449 Intel Device unknown pci bus 0x1 cardnum 0x0b function 0x0000: vendor 0x1002 device 0x4752 ATI Mach64 GR pci bus 0x1 cardnum 0x0d function 0x0000: vendor 0x8086 device 0x1229 Intel 82557/8 10/100MBit network controller Probing for devices on PCI bus 4: pci bus 0x3 cardnum 0x00 function 0x0000: vendor 0x8086 device 0x1161 Intel Device unknown pci bus 0x3 cardnum 0x04 function 0x0000: vendor 0x9005 device 0x00c0 Adaptec Device unknown pci bus 0x3 cardnum 0x04 function 0x0001: vendor 0x9005 device 0x00c0 Adaptec Device unknown pci bus 0x3 cardnum 0x05 function 0x0000: vendor 0x8086 device 0x1004 Intel Device unknown pci bus 0x3 cardnum 0x07 function 0x0000: vendor 0x9005 device 0x00c0 Adaptec Device unknown pci bus 0x3 cardnum 0x07 function 0x0001: vendor 0x9005 device 0x00c0 Adaptec Device unknown - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/