Q:

I am using a SEAGATE - FreeAgent Desk HDD 500 Gb/Go USB 2.0,
I know it is not on your list of drives that have been tested,
but its one I own so I thought I would try it.

It worked fine for about 5 minutes and would then hang and not work again until the Qu was rebooted.

A:
The problem is caused by the sleep interval time settings on the HDD,
Resetting the sleep interval to NEVER, is discussed on Seagates forum <here>

"
Seagate Engineers did NOT put a sleep interval time adjustment in the OS X version 
of the Freeagent drive manager utilites program, but they did put it in the PC version. 

Seagate Tech Support told me that I would have to reformat the disk for the PC, 
install the Freeagent drive manager software on a PC, 
Set the sleep interval to a longer time or to NEVER, 
Now reformat again to OS X.
This should fix the problem."
 

The FreeAgent drive utility needed to reset the sleep interval from a PC should be available from the Seagate website.
Please contact Seagates Technical Support directly for further assistance.



Related article: Qu-Drive. Understanding Qu-Drive and USB <here>
containing a list of A&H tested and approved HDDs

keywords: Qu-16 Qu-24 Qu-Drive Qu16 Qu24 Q16 Q24 Qu-32 QuDrive HDD Seagate