HD won't spin down automatically

IMac DV+ "450" ruby red. Panther 10.39 - no extra software installed. Firmware update done as recommended. Original HD still inside.
Replaced CD drive with DVD drive >> set HD to slave.
Problem now: Energy saver will not spin down HD although checkbox is checked. Is this normal (in my configuration since HD is on Slave)?
Thanks, Martin

I'm confused now, Martin. Your original post said that this was an "iMac DV+ "450" ruby red"
All of the 450's (they came in Ruby, Sage and Indigo ) had a DV drive fitted as standard. As you say, the 400's didn't.
Can you spin the drive down manually, using the sleep command under the Apple menu?
The slave issue could be involved, but, as I said, this was a very common problem with the Summer 2000's anyway. (I suffered it myself)
David, I must have dealt with hundreds of queries about exactly this issue with the Summer 2000 iMacs here over the years (though I don't look in here as often as I used to). I promise you, at least with the drives originally fitted, the very common problem of spin down failure of the drives in this model was directly asociated with increased bearing whine and wear over time. The hard drives factually fitted to these machines were generally a "LC" (low cost) model, with a reduced warrantee period.
Of course, as you say, if a new drive is fitted this may not be as big an issue.
Cheers
Rod

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