G5 adding 2nd DVD drive

I purchase a 2nd DVD drive , Pioneer BDC - 207 , it mounts, but, if the computer goes to sleep or I power down, the drive is not found.

I have un-install then re-install the drive.

Pioneer customer service says "

Double check the power setting in the Mac and make sure to disable them.

When the power setting are turned on it will send the drive to sleep when

not in use as an attempt to preserve power. However since our drive is not

equipped with a Mac firmware the computer is not able to wake the drive up

therefore in most cases it requires that it be disconnected to restore

operation. "

Other than the power settings in System Preference, is there another power setting for this 2nd drive ??