IMac 24" 2007, 2.8Ghz

iMac has been shutdown for three days. Upon startup, the fan runs continusously.  Restarting does not help.  Any suggestions?

Reset the > System Management Controller (SMC)
1. Shut down the computer.
2. Unplug the computer's power cord.
3. Wait fifteen seconds.
4. Attach the computer's power cord.
5. Wait five seconds, then press the power button to turn on the computer.

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    Insert the Disc 1 that came with your computer and press D key while your computer is starting to run an extended test on Apple Hardware Test

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    Hello,
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  • IMac Mid 2007 (OS X Mavericks 10.9.4) doesn't go to sleep

    Hello, i have an issue with my iMac Mid 2007 with OS X Mavericks :
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    No i've checked that before posting and i did all that steps... anyway i think i resolved my issue...
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       id=501  level=255 0x4=USB mod=16/09/14 23:19 description=EHC2 owner=AppleUSBEHCI
       id=503  level=255 0x4=USB mod=16/09/14 23:27 description=UHC3 owner=AppleUSBUHCI
       id=505  level=255 0x4=USB mod=16/09/14 23:24 description=UHC4 owner=AppleUSBUHCI
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    Hi
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