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Apple Computing Products:
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iMac CPU Temp
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<blockquote data-quote="stingray1965" data-source="post: 1438991" data-attributes="member: 268629"><p><strong>early 2006 iMac running hot?</strong></p><p></p><p>I have an early 2006 iMac - Intel Duo 2.0GHz, 20".</p><p>A month or more ago it started getting sudden random horizontal lines on the display. If inside a document window, I could adjust the window size and the line would go away, but another would usually appear elsewhere soon. Then it started to crash/freeze several times a day. Or sometimes the screen would just go black. In either case I'd have to shut down with the power button on the back, wait a minute or so, then restart. Doing this got really frustrating and boring.</p><p>Then I read that it might be the video card going bad, which on my machine is part of the motherboard, so cannot be replaced separately. Bummer!</p><p>Even tho I'd also read that defraging the drive doesn't make sense on an OSX machine, I did it anyway with TechTool Pro. Took a long time, but maybe it would help? Looked nice in the resulting image, but...nope. </p><p>THEN I read here that it might be running hot and maybe that was causing the video card to freak.</p><p>I downloaded the free iStat Pro AND smcFanControl. I upped the speed by 400 rpms in each of the 3 available fans to ODD = 1200, HDD = 1800, CPU = 1200.</p><p>All of the iStat readings are now between 5 and 14 degrees cooler than before and guess what, NO LINES OR CRASHES!</p><p>What a relief.</p><p>I can't afford a new iMac, so I'm back in business.</p><p>At least I hope this is the answer.</p><p>Thanks. MacForums!!!</p><p>Greg in New Orleans</p></blockquote><p></p>
[QUOTE="stingray1965, post: 1438991, member: 268629"] [b]early 2006 iMac running hot?[/b] I have an early 2006 iMac - Intel Duo 2.0GHz, 20". A month or more ago it started getting sudden random horizontal lines on the display. If inside a document window, I could adjust the window size and the line would go away, but another would usually appear elsewhere soon. Then it started to crash/freeze several times a day. Or sometimes the screen would just go black. In either case I'd have to shut down with the power button on the back, wait a minute or so, then restart. Doing this got really frustrating and boring. Then I read that it might be the video card going bad, which on my machine is part of the motherboard, so cannot be replaced separately. Bummer! Even tho I'd also read that defraging the drive doesn't make sense on an OSX machine, I did it anyway with TechTool Pro. Took a long time, but maybe it would help? Looked nice in the resulting image, but...nope. THEN I read here that it might be running hot and maybe that was causing the video card to freak. I downloaded the free iStat Pro AND smcFanControl. I upped the speed by 400 rpms in each of the 3 available fans to ODD = 1200, HDD = 1800, CPU = 1200. All of the iStat readings are now between 5 and 14 degrees cooler than before and guess what, NO LINES OR CRASHES! What a relief. I can't afford a new iMac, so I'm back in business. At least I hope this is the answer. Thanks. MacForums!!! Greg in New Orleans [/QUOTE]
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