new iMac instable?

[Macintown]

I just got my new iMac (2,66 ghz, 2 gig ram, ati radeon 2600 HD pro, 500 HD).
It seams that every time I play a HD movie, or play a game with windows running on bootcamp, my mac just turn off, because it got too hot. No problem if that happens once, but it happened 7 on one day. I'm going back to the store tomorrow to check what's wrong, but I think it's just too much power without a good cooler. anybody with simular problems?

 

[D4F]

I just got my new iMac (2,66 ghz, 2 gig ram, ati radeon 2600 HD pro, 500 HD).
It seams that every time I play a HD movie, or play a game with windows running on bootcamp, my mac just turn off, because it got too hot. No problem if that happens once, but it happened 7 on one day. I'm going back to the store tomorrow to check what's wrong, but I think it's just too much power without a good cooler. anybody with simular problems?

That sounds like a broken cooler/fan.
Mine can work at 100% both cores in use for over 24 hours during renders and works perfect.
Just go to the store and if you're within 14 days of purchase ask for a replacement. Don't go with all that send it on warranty thing.

 

[Muncher]

Download smcfancontrol. Run it. Rev up each fan one at a time and listen for the corresponding hum. Once you hear it, turn the fan back down, wait a little while, and do the next fan. If you don't hear a hum, something's broken.

 

[xxjuicymintxx]

Download smcfancontrol. Run it. Rev up each fan one at a time and listen for the corresponding hum. Once you hear it, turn the fan back down, wait a little while, and do the next fan. If you don't hear a hum, something's broken.

I'd have to agree. smcfancontrol is useful, and will probably help your situation out. Sorry about the problem w/ your Mac, but hey, at least you're still on the good side. =]