Macbook Overheating?

[er15]

Hello there. I have the late 2006 Macbook white model and my temperatures indicate that my laptop is overheating:

HD: 35
CPU:78
Heatsink A: 64
Heatsink B: 64

These temperatures are in celsius and I am not sure what to do in order to reduce my CPU temperature, as generally the fan is on between 6200-7000 rpm, even when I have applications such as MSN, itunes and Safari.

 

[GGJstudios]

Your Mac is not overheating. The Intel processors used in Macs are designed to automatically shut down to prevent damage if they truly overheat (around 100C/212F - 105C/221F, depending on your processor). iStat Pro will give you accurate readings of your temps and fan speeds, among other things.

Unless there is a rare defect in a Mac, most temps are well within the normal operating range, considering the workload being put on it. Websites with Flash content, games and other multimedia apps will put higher demand on the CPU/GPU, generating more heat. This is normal. If you're constantly putting high demands on your system, such as gaming or other multimedia tasks, expect temps to rise and fans to spin up accordingly. It's just your Mac doing its job to maintain temps within the normal range.

Your fans are always on when your Mac is on, spinning at a minimum of 2000 rpm (for MBPs) or 1800 rpm (for MBAs, MBs and minis). They will spin faster as needed to keep temps at a safe level. If they're spinning up without increased heat, try resetting the SMC. PRAM/NVRAM has nothing to do with these issues, so resetting it will not help. Also, make sure you don't block the vents, which are located at the rear, near the hinge.

Learn about the fans in your Mac
Apple Portables: Operating temperature

• Find your Flash version and make sure it's the latest version available.
• Install ClickToFlash to control which Flash content plays on websites.
• Use the YouTube HTML5 Video Player to watch YouTube videos, when available
• Launch Activity Monitor and change "My Processes" at the top to "All Processes", then click on the CPU column heading once or twice, so the arrow points downward (highest values on top). Then look to see what may be consuming system resources.

 

[simsaladimbamba]

It is not overheating, as overheating would cause a shutdown, as GGJstudios probably will already have told you.
Anyway, what application tells you, that your fan spins at 7000 RPM, as the maximum fan speed of the MB is 6000 RPM, though the 2006 model might have been different?

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Have a look at Activity Monitor (Applications / Utilities /) and select All Processes and sort by CPU to see what the culprit may be.
Also check the "System Memory" tab to see what your "Page ins:", "Page outs:" and "Swap used:" are.

image below uses sorting by CPU as an example

Further reading:

Mac OS X: Reading system memory usage in Activity Monitor
Making The Most of Activity Monitor
What Is Activity Monitor (or How to Take Your Mac's Pulse)​

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