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I have a Lenovo Z570 Thinkpad with windows 7. One of my friends suggested that a 4GB RAM is much more effective when working on Linux than on Windows, so I searched a lot and installed Ubuntu 12.04LTS. Now my system fan is running faster and the CPU temperatures increased. Then for a number of days I compared the CPU temperature between Ubuntu and Windows 7: I found that when working on Ubuntu the temperatures are considerably higher even though the %CPU usage is less than 5 in both. Is this normal? Is there any way to reduce the CPU temperature?

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Still not reason to use capitals? <:) – Rinzwind Mar 5 '13 at 10:38
If this is a version with a nvidia card you may want to try bumblebee. – Brandon Bertelsen Mar 5 '13 at 11:27
Are you sure CPU frequency scaling is working correctly? You can check this for example with the terminal command cat /proc/cpuinfo | grep -i "cpu mhz". – pileofrocks Mar 5 '13 at 11:29

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