Interesting. I have a few legacy PATA 120-300GB drives I occasionally need to transfer backup files from, and on my UD3R it is very hit or miss as to whether they will be found at startup. Sometimes they are there at POST, sometimes not.
As soon as I reconnect them back into the old server they are detected every single time. Same IDE cable used btw. Either the socket is badly designed/manufactured and the IDE cable end has to be pushed in just right, or the JMicron firmware on my UD3 is suspect.
Overall, I'm left distinctly underwhelmed with GB quality control, not sure I'll get another GB board next time around. I've always gone with Asus in the past and never had a problem. Ho hum...
Peat