I still could be heat related problem with PSU or
SATA controller chips. Video is unlikely but not
impossible.

Another possibility is that you used thumb drive
before adding new SATA and now default thumb
drive letter is same has your new HD. Cause could
be dysfunctional HD but it would not explain
functionality of open/closed case.

Toomas






----- Original Message -----
From: "Peter" <[log in to unmask]>


> Thank you for the temp monitor link Toomas. It is a great utility to check
> on drive temps. In my case, the SATA drive is running at 41 degrees while
> the ATA is at 45! So it would appear that the drive temperature is not an
> issue. These measurements were made with the cover on and the computer
> having run for several hours.
>
> So far, no further drive lockup has occurred. I did have another thought,
> however. It is possible for the video driver to cause the SATA driver to
> fail? I did check the status of the SATA driver when the failure did occur,
> and the system reported that the driver was working properly.
>
> Still an mystery unsolved!
>
> Peter
> ----------------------------------
> [log in to unmask]
>

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