Ibook hotter than usual

I have a 2 year old ibook g4 1.42ghz with 512 ram and lately the fan has been going off constantly. I don't know if it's the hard drive's fan or the computer's fan (Although by looking at the temps I think is the CPU). The computer always seats on my desk, so I don't think it has trouble to get air. The applications that I usually run are Mail, Safari, Adium, and iTunes. This is what I always have running on the computer but lately, as i said, the fan goes off very frequently. My temperatures are these:
CPU top 69 C
Battery 32 C
Memory/Power 53 C
HD 47 C
I was wondering what can I do to lower the temperature on the CPU. Or, perhaps, am i starting to see a problem with the logic board?
thank you in advance.

So I opened the computer, took a look at it and everything seemed fine.. So I turned it back on and figured that it wouldnt hurt to take a look at the processes and to my surprise I had a printer driver eating over 60% of my memory even though I wasnt connected to a printer. So I killed it, and within few minutes my computer went back to the normal temperature.
thanks a lot all of you guys,
-IR

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Apple can replace the battery for $79 US.
http://support.apple.com/kb/index?page=servicefaq&product=iphone

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If the machine suddenly shuts down on its own or kernel panics, I'd be concerned. Do not attempt to modify anything internally except ensuring the RAM is to stated to be Late 2009 iMac compatible. Not all 1066 MHz PC3-8500 DDR3 SO-DIMMs (204-pin) RAM are alike. http://www.crucial.com/ http://www.macsales.com/ and http://www.datamem.com/ all sell RAM by age of computer and model name. Do not get ValueRAM. Only get lifetime warranty RAM.

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Hey everyone,
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Thanks a lot for your reply. I did run the Apple Hardware Test and after running both normal and extended tests no trouble was found. I managed to download the widget called iStat Pro, I realized that my CPU was idling at 50%, and the CPU temperature was 80 degrees Celsius. This caused my fans to run consistently at 6000RPM. I discovered that the random shut down while running on the battery was caused by too much current being drained by the system. So as you suggested, it was indeed happening for safety reasons.
By looking at the Activity Monitor and selecting all processes I saw that a process called printjobmgr was utilizing 100% of the CPU. I found this strange as I had performed several restarts and would have expected this process to terminate on its own. As soon as I used Force Quit, everything returned to normal. Strangely, every time I print something, the printjobmgr starts up and utilizes 100% of the CPU. This lasts until the printing is finished. I still was unable to find a permanent solution to this.

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Hi all
So my computer usually gets hot even just idling, and the fans start revving up from just watching a few SD vids in quicktime, but now after this update my computer gets even hotter.
Playing standard definition videos would just get to a little over 70˚C ish but now it's about 81˚C. I have to use SMC fan control and set the RPM to max (6k RPM) in order to bring temps back down to 69-70˚C. It seems with every update the temps go up, but this one is the most dramatic. I'm using the integrated graphics chip instead of the dedicated chip. I could only imagine how hot this thing would get if I were using that beast >.<
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Does the macbook air get as hot as the MBP? I don't have any use for the dedicated GPU anymore.
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You don't have to underclock your MBP to achieve acceptable temps. Just move away from Arizona's hot summer climate or get an air conditioner for your workspace. Pay attention to the maximum ambient air temperature spec for the MBP (95°F), and minimize the use of it at air temps close to that, because 95° air doesn't absorb heat as efficiently as your MBP expects it to. Get the MBP off your lap, where it shouldn't be, so air can circulate freely across the bottom of its case. Keep it out of the sun at all times. Turn off BlueTooth and Wifi when you aren't using them. Disconnect peripherals you're not using. Quit apps you're not using. Check Activity Monitor to see whether you have any hidden processes using lots of CPU cycles and raising the machine's temperature unnecessarily. Never rest the MBP on any soft surface, particularly when it's playing videos, gaming, or doing any other processor-intensive task.
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It's gonna be hotter than my metal PowerBook G4?

One thing I learned to deal with when I upgraded from my iBook G3 to my PowerBook G4 12" is that the aluminum casing did get hot..and I mean HOT! But I would say that most of the time it was just warm, even "cool" when just checking email for a short time...certainly not hot when it had just been sitting there in sleep mode connected to the AC adapter.
I was hoping returning to the plastic casing would mean not getting scorched and sweaty from a hot metal underside. If you are telling me this MacBook is WAYYYY hotter than my PowerBook, man, that sounds bad! Hopefully I will be lucky with my new MacBook.

Note:
"hot" = temperature is high enough to cause pain or at least discomfort
"warm" = not cool and maybe sweat-inducing, but no real discomfort/pain
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CPU2 hotter than CPU1... When to worry?

G'day,
My recently acquired June04 1.8GHz dual processor PowerMac G5 has 1 CPU constantly running at least 10°C hotter than the other CPU.
I've just opened the computer up and had a look... and there are no screws holding either of the CPUs/heatsinks in place.
(I know - not good to be running the computer like that!!!)
Would this alone be a likely cause of the overheating? (Well - and - what IS overheating - at what temperature do you start to worry)
Thanks
cosmic

Hi-
75ºC is probably a good temp under load.
I don't think temps under 80ºC are much to worry about.
Variations between CPU temps are common, though usually a bit closer together.
One CPU will typically be hit with system load more than the other, so one being hotter would be normal.
Also, the upper CPU gets an extra dose from the normal physics of heat.....
However, there should be 4 screws holding the processor heat sink assembly to the board.
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Might use Activity Monitor to see which CPU is getting worked.
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Message was edited by: EdSW

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Ibook hotter than usual

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