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The left hand side of my 2011 iMac, particularly the top part, get extremely hot and I think it hampers performance. I am also worried about long term heat damage and would like to know if there is a 3rd party heat sink of sorts that could dissipate the excess unwanted heat?
It doesn't have to be pretty, just functional, and at a reasonable price.
Thanks!
Since I last posted I had the fans set to:
..and now:
Which is noticeably different to the touch and I feel much better now. Sometimes the iMac would just freeze up and I'd have to reboot it, or it would do it itself, around 30mins later when I thought I left it on standby, I think it's because it's summer?
Strange because this is the first time that I've ever heard the fans, I thought they might be broken!
Hamper wrote:
Since I last posted I had the fans set to:
..and now:
Which is noticeably different to the touch and I feel much better now. Sometimes the iMac would just freeze up and I'd have to reboot it, or it would do it itself, around 30mins later when I thought I left it on standby, I think it's because it's summer?
Strange because this is the first time that I've ever heard the fans, I thought they might be broken!
All those temps look fine, but you are pushing the fans much too hard (how can those be the default settings?) And you can let the temps get somewhat higher. Just try to keep the drive temp in that range somewhere, but not much higher than about 50C. At those speeds, you will burn up the fan motors, especially the drive fan. Two screenshots follow, first my default speeds, then my "hot" setting--I don't like to use that setting for long. I wouldn't recommend going much higher. If you use the fan at the back you will probably be able to get away with lower internal fan speeds.
Oh, there's always a catch. I was hoping to be able to speed up the fans more often, not all the time because of the heat but really, just ~1300 odd, that's not much to play with.
Don't go completely by my speeds, that's just to give you a rough idea. You have to make a guess based on what your default speeds are. And it is guesswork. No one can say exactly how high you should push the fans before you start damaging them. And there's another tradeoff. Faster speeds more dust gets sucked in. Make sure all the vents and intakes are vacuumed periodically--long slot at top, grille behind stand, and along the bottom, where the RAM and speakers are located.
I have four or five of those presets, graduated, which I switch to depending on how the temps look.
I have recently purchased a second hand MacBook Air and it came with Fan Control on it, here is a screen shot of the Preferences and I just wanted to know if these were normal temperatures please?
Regarding this issue of the Thread and my iMac I am about 99% certain it's Safari causing the problems, too many windows and it's game over 😟
Sorry, I'm not familiar with the Airs and don't know what that 51.2C is for exactly. I'd post again in the Air forum, if there is one.
External heat-sink for iMac?
