Hi I notice my IMAC Optical Drive fan has been staying on lately.

Yes, it is true.
At Idle with no apps other than safari my optical drive fan's RPMS are higher than usual. Is that normal?
My other fans are at their normal idle position, and yes I have Automatic selected in my Energy Savings settings.
I think it's becasue its been warmer lately in my room becasue of the summer.
BUt wouldn't all the fans increase their speed?
THanks

Hi poops-
The optical drive is at the top and heat rises and you did mention that it has been warm.
What happens if you shut it down and leave it to cool down for 30 minutes or so and then power back up?
Luck-
-DaddyPaycheck

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Can aynone confirm whether the deafult speed for the optical diive fan on 2011 i7 iMacs is 1150 RPM, i.e. 150 RPM faster than the 1000 RPM for 2009 / 2010 iMacs?

It is normal for the fans to run, they're there to cool down your machine by >>passing air over parts that heat up, they should be extremely quiet so you >>cannot hear them unless you have extremely sensitive hearing. 3500 RPM is >>extremely fast though so it indicates something else might be going on.
I am noticing the optical fan running quite high. And this is with normal usage. Web surfing, file manager lookups, nothing much else. However, I notice the optical fan speed climbing and getting louder. It will get up to approx. 5000rpms. This i can confirm because I am running hardware monitor and this is what is is showing.
So my question is this. Are the iMacs supposed to be relatively quiet for normal processing? When I say quiet, quiet so that you cannot hear the fans? I can understand a graphics intensive/watching movie causing them to get louder but other than that should they not be relatively noiseless?
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Message was edited by: BGmail

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I bought this Imac last April and I had the fans roaring after 2 weeks of light usage. I followed instructions like resetting the SMC, unplugging the imac and restarted.
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Has anyone experienced this? I hope this is the cause of my problem because this mac is making my life easier at home compared to previous PC and also, I want to know that my hardware is not at fault...
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Hello
at first check that you have no disk left in the drive.
According to Apple Support, reset SMC if the drive or the fan behavior seems not normal.
How to --> http://support.apple.com/kb/ht3964
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