Now this is tricky. I'm not sure whether it's the hard drive, the sata-to-usb controller, or the data dock where the hard drive's caddy slides into that causes the problem. It may be the cable that connect the data dock to a sata connector on the motherboard. It may even be the backup software I use causing the problem. Basically every now end then I notice that the backup takes ages rather than the usual couple of hours. I can see the transfer rate at 1MBps levels. Yet, when I cancel the backup and remove the caddy and then slide it back in nothing indicates that it operates in usb1.1 mode which I've seen happening with different drives on some occasions when the sata/usb controller goes wrong. Is there a way of telling what the system thinks that hard drive is whether it's usb1.1 or 2.0? When tested with HD Tune the transfers are as expected. Both my backup programs have the same problem which kind of eliminates them as a suspect. I changed the cable as well to no avail. What else would you suggest?
No announcement yet.
Problems with an external hard drive