Hi, Strange thing that shows up here. Using a MB with a MVP3 chipset I have hda - 13G udma2 hdb - nothing physical but the driver does not always agree hdc - cdrom udma2 sometimes... hdd - HP Colorada 20GB tape dma - sometimes... I say sometimes for the devices ide1 since what /proc/ide/via and hdparm (used only for info) report changes boot to boot. Why is this happening? I am using ac5 but have observed this for a while. Note that everything seem to work fine in both cases (PIO or DMA)... What else would help debuging this? Ed Tomlinson