Edward wrote: >> ata1: SATA max UDMA/133 cmd 0xC000 ctl 0xC402 bmdma 0xD000 irq 177 >> ata2: SATA max UDMA/133 cmd 0xC800 ctl 0xCC02 bmdma 0xD008 irq 177 > Jonathan, I'm not sure about the controller itself, but don't forget a > lot of hard drives are still not really native UDMA/150. A lot are still > parallel hard disk drive interfaces 'converted' to a SATA interface. > PATA is currently at a limit of UDMA/133, so that may be what you're > seeing? > I think you could be right. It's a Samsung drive, but I've read that Seagate are currently the only ones making a native SATA drive. It's hard to find out the truth, and isn't it a bit misleading when they all advertise them as being UDMA/150? However, I don't think that explains what I'm seeing as ata2 also shows "SATA max UDMA/133", yet I don't have a device connected to it. Jonathan