Mac Pro won't sleep?

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krumlin


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When I try to put my Mac Pro to sleep, the screen turns black then makes a noise (like a fan) and wakes up immediately. Any Idea what this could possibly be?
 
blackmac11

blackmac11


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Your Mac's Specs
iMac 20" 2.4 GHz Dual Core 3GB Ram 320GB Hard Drive 10.6.2 :: Ipod Touch 8 GB :: Beastly Gaming PC
Could be a few things:

Something you are running (software) is waking the computer up immediately after it goes to sleep.

A bluetooth device is waking the computer up. My wireless keyboard does this when the battery starts to get low. Fix by going to sys prefs/bluetooth/advanced and uncheck "allow bluetooth devices to wake this computer".

There could also be a hardware problem. Hopefully it's just a software issue.
 

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