Am I paranorid?

Nyy8

macrumors 6502a
Original poster
Jun 12, 2011
510
126
New England
So, I open up SMC fancontrol, and I see my iMac running at like.. 120F, I freak out and kick up the fans to from like 1K RPMs to like 2.5K RPMS and knock the temp down to 100F.. Is what im going wrong? I need some guidance here.
 

SandboxGeneral

Moderator emeritus
Sep 8, 2010
25,874
8,979
Detroit
So, I open up SMC fancontrol, and I see my iMac running at like.. 120F, I freak out and kick up the fans to from like 1K RPMs to like 2.5K RPMS and knock the temp down to 100F.. Is what im going wrong? I need some guidance here.
120F is very normal. My iMac (27" i7 2.93GHz) right now is at 142F and all I'm doing is running Chrome, Tweetdeck, iTunes and Firefox as the main apps open.

Don't be paranoid.... enjoy your iMac. ;):)
 
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oscolivar1

macrumors newbie
May 18, 2012
28
0
i get paranoid too but 120 is pretty normal. When i first got the Imac seeing temps in the 165-175+ range i got really paranoid. Before I start playing diablo3, portal, or SC2 I kick up the fans pretty high to stay below 140F(3hr+ gaming) on the GPU. IMO the imac runs to hot just browsing, youtube etc and doing anything CPU heavy. It maybe paranoid that i have fans in the back of my IMAC too, but temps are low and the back of the Imac never gets scorching hot, only warm to the touch. I don't have apple care so I figure being paranoid is fine.
 
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Bendrix

macrumors member
May 9, 2012
93
1
does the iMac's outer shell material affect the heat retention? that and the completely sealed design seem conducive to heat. but maybe there's some engineering built into the iMac to counteract this.
 
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Big-TDI-Guy

macrumors 68030
Jan 11, 2007
2,606
13
What iMac is completely sealed now? I don't think any currently are - even if they were, the aluminum surface area would help keep temps pretty low.

A lot of the iMac hardware is the mobile type - and mobile hardware is designed be able to handle temperatures well in excess of 120F.... Now if you were 120C, I'd be a little concerned...
 
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oscolivar1

macrumors newbie
May 18, 2012
28
0
The aluminum is doing its job of of dissipating heat. Notice Imacs run hot at the top while the bottom stays cool. Thats the way it cools it self. Its true the hardware is safe, but are the LCD's safe being so close to the heat? I dont think they are so I'm keeping mine extremely cool...
 
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12dylan34

macrumors 6502a
Sep 3, 2009
877
3
The aluminum is doing its job of of dissipating heat. Notice Imacs run hot at the top while the bottom stays cool. Thats the way it cools it self. Its true the hardware is safe, but are the LCD's safe being so close to the heat? I dont think they are so I'm keeping mine extremely cool...
I tend to worry about stuff like that too, but just remember that millions of dollars of engineering went into designing every aspect of the machine. The effects of heat is a common concern in electronics, so I'm sure that it was well thought out, especially by Apple. Yes, there's the occasional story of a screen yellowing due to heat, but that's literally one in 100's of thousands if not millions. You'll end up wearing out the fans and they'll start making an awful rattling noise.
 
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oscolivar1

macrumors newbie
May 18, 2012
28
0
I tend to worry about stuff like that too, but just remember that millions of dollars of engineering went into designing every aspect of the machine. The effects of heat is a common concern in electronics, so I'm sure that it was well thought out, especially by Apple. Yes, there's the occasional story of a screen yellowing due to heat, but that's literally one in 100's of thousands if not millions. You'll end up wearing out the fans and they'll start making an awful rattling noise.
Im not wearing out the fans if the fans gradually get that high if not higher when I start gaming. Might as well start the fans up now to prevent the heat. i dont have the yellow tinting, but i do have grey streak marks on the top left of my screen. Only can see it in white/grey background, other than that they're not visible while gaming or watching movies.

Has anyones fans rpm maxed out before? or whats the highest they've seen so far?
 
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Les Kern

macrumors 68040
Apr 26, 2002
3,063
76
Alabama
Odd numbers in temps is normal, even numbers are not. Usually means that there is some kind of trojan that allows the government to monitor you, even letting them take screen shots and trace your internet searches. Your best bet is to cover the laptop in tin foil. That will keep the signals from escaping.
 
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