2011 iMac red hot

[MythicFrost]

The CPU can do about 100C, which is typical max temp for a CPU. The cooling system won't let it get that hot though. For a hard drive, it's usually either 50 or 60C for the max temp, so yours is pushing it. I would try and speed up the hard drive fan if you can to cool it off, as heat will kill HDDs.

Thanks for the info, I like it silent though so I'll leave the fans as it is. I don't think it'll fail, but if it does I have good backups.

 

[archer75]

My hard drive spends most of it's time 50c+.

Right now I just turned the imac on and it's at 44c. I'm not doing anything but surfing the web. Only the GPU is hotter at 46c. Ambient is currently 19c

 

[bakura]

My hard drive spends most of it's time 50c+.

Right now I just turned the imac on and it's at 44c. I'm not doing anything but surfing the web. Only the GPU is hotter at 46c. Ambient is currently 19c

My hard drive on my iMac 2011 27' i7 is also around 50-55°C most of the time (ambiant around 25-26 those days). Could the new sensor of hard drive introduced for the 2011 iMac be guilty (I mean, it'd report wrong temperatures) ?

However, the GPU is DAMN hot when it's used. I just launched a few minutes the smalluxGPU (quite impressive, btw, real-time global illumination is near my friends), and it reached around 82° (there are two temperatures for the GPU, the other one was around 75°C).

I will download Portal 2 soon, we'll see...

 

[nyukfui]

Have anyone measured on the aluminium casing itself? I've touched the imac 27" casing today in an apple store and feel the casing is real hot. My skin told me that should excess 40C. Any idea?

 

[zorinlynx]

If the machine is working properly, stop worrying about it.

There's a lot of computing power crammed into that tiny space. It has to get rid of its heat somehow; that's what you're feeling.

You can run SMCfancontrol to speed up your fans if you REALLY want to get anal about it, but honestly, all you're doing is putting more wear and tear on your fans, making a ton of noise and sucking more dust into your machine for no good reason.