late 2009 imac 21.5 inch sleep/wake problem

[lolzao]

i just bought the imac 21.5 inch with ati radeon 4670 and the base spec.

after few hours of playing with this new toy. i realise that when you press the shutdown button, it will put the imac to sleep instead of showing the shutdown/restart option that i have on my macbook. Is there any way to make it work like a macbook power button.

secondly, whenever my imac wake up after sleeping, the fan will run faster and automatically went to sleep again. this issue just keep repeating itself. i have no choice but to shutdown the imac and boot up again.

Thirdly, i try the machine on WoW and i realise that the sound is rather choppy .

Anyone know the fix for the above problems?

 

[Hellhammer]

1. Nope, you can only force it to shut down by holding it for few secs but that's not recommended. Why don't you use keyboard shortcut for that (command-option-control-eject) or just sleep it?

2. Try SMC reset

3. Are you using internal speakers or 3rd party?

 

[lolzao]

1. Nope, you can only force it to shut down by holding it for few secs but that's not recommended. Why don't you use keyboard shortcut for that (command-option-control-eject) or just sleep it?

2. Try SMC reset

3. Are you using internal speakers or 3rd party?

im using the internal speakers

i've tried the smc restart a several times but it doesn't seems to help

downloaded istat and i realise that the cpu fan is running at 4000 rpm+ -
with no application running and cpu usage 0%