I have a new Portege R830 with combined eSATA / USB port. It will recognise an external drive in Device Manager as Drive 0 but does not mount the drive under Win 7 x64. The drive mounts and works absolutely normally under USB2 via the combined port or any of the other ports on the PC. The drive runs absolutely normally under eSATA on a different Win 7 x64 desktop PC
Internet research suggests this is a widespread issue with Win 7, but given the above comment re normal operation on my desktop, strongly indicates that this is 'simply' a Toshiba laptop Win 7 x64 Driver issue.
One workaround someone had reported was to boot the PC with the drive connected. This does result in the PC mounting the drive but I have found to be unreliable - tends to freeze the machine unpredictably, though while connected it did show that it was transferring data at reasonable speed.
Searching these forums has not identified any solution...... Toshiba - think you need to address please !
Afetr all is a significant 'feature' on the Portege and rather defeats the point if unable to use......
Firstly this is a user to user forum… so don’t address the issues to Toshiba here in the forum but to other user from this community.
Back to your issue; Does this mean that the HDD connected to eSATA port cannot be recognized as eSATA device but USB device?
Please check if you use the latest BIOS version. On the Toshiba European driver page you can find the BIOS version uploaded at 29/07/11.
Furthermore I would recommend checking the BIOS settings; check if eSATA is enabled there.
Thank you for your comments; in response, some clarification:
Re U to U - understand; however it is usual in my experience for the manufacturer to follow these sorts of issues, so hence request for interest....
Device works fine when connected with USB cable. When attempting to use eSATA, is recognised at Device Manager level as a disc drive, but fails to mount under normal use. However, have found that is connected prior to PC boot, it will then mount and has been possible to transfer data but is unreliable - tends to cause PC freeze after indeterminate time.
Re BIOS - yes have checked BIOS is latest edition. Also that eSATA is defiitely Enabled in the BIOS.
I have had the same problem. I tried rebooting several times with the drive plugged in, to no avail. eSata is enabled. I thought that it might be the cable, but I tried a 2nd cable and had the same problem.