Hi, I have what seems to be a poorly designed board (based on the number of problems that a Google search turns up). However, since I guess there are still people that have it and I have some capability to do some debugging I thought I should try to fix it rather than throwing it out. It is possible that my problem is caused by a bad cable, bad memory, or a bad drive, but I suspect the board is just temperamental (specifically, the way interrupts are handled). The drive had a lot of bad sectors a while ago but writing over them seemed to have fixed it. The drive was working without errors with another board for a while now. I've tried booting with and without the "noapic" command line option and with the old ide driver and the pata_via driver. Each configuration seems to have its own problems. Certain configurations generated errors like "IRQ nobody cared" and "spurious interrupt". The noapic and ide driver combination results in the following error: [ 366.463909] spurious 8259A interrupt: IRQ7. [ 5432.078546] hda: task_no_data_intr: status=0x30 { DeviceFault SeekComplete } [ 5432.078555] hda: possibly failed opcode: 0xb0 [ 5462.224012] hda: lost interrupt The "noapic" and pata_via is what I'm running now. It works for a while and then I get an error like the following: ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 ata4.00: BMDMA stat 0x65 ata4.00: failed command: READ DMA ata4.00: cmd c8/00:18:4f:27:1b/00:00:00:00:00/e0 tag 0 dma 12288 in res 51/10:18:4f:27:1b/00:00:00:00:00/a0 Emask 0x81 (invalid argument) ata4.00: status: { DRDY ERR } ata4.00: error: { IDNF } ata4.00: configured for UDMA/100 ata4.01: configured for UDMA/100 sd 3:0:0:0: [sda] Result: hostbyte=0x00 driverbyte=0x08 sd 3:0:0:0: [sda] Sense Key : 0xb [current] [descriptor] Descriptor sense data with sense descriptors (in hex): 72 0b 14 00 00 00 00 0c 00 0a 80 00 00 00 00 00 00 1b 27 4f sd 3:0:0:0: [sda] ASC=0x14 ASCQ=0x0 sd 3:0:0:0: [sda] CDB: cdb[0]=0x28: 28 00 00 1b 27 4f 00 00 18 00 end_request: I/O error, dev sda, sector 1779535 ata4: EH complete I'm attaching the kernel log for the pata_via and ide setups and the output from lspci. Best regards, Neil