Cool, looking elsewhere I found for optical I changed "F2Mx" to "F0Mx". Worked like a charm. I have temperature monitor so I can keep an eye on things, but this computer gets pretty light usage. For now i need to type this after sleep. Hope to dine script somewhere to automate these, I guess maybe an easy job for Automator.

Do you know a similar command to slow down optical fan. Tis worked for me for CPU, but optical fan is still at 5000rpm. I don't have anything in the DVD. Drive.