When running Ubuntu 12.04 LTS, my Acer Aspire 4530 laptop and its PCI temperatures are around 70 degrees Celsius not even an exterior fan does anything about it. How can I make it run cooler?
When it comes to temperatures there are usually very few sensors in your computer - it'e either the CPU, the Hard Drive or the Motherboard (the chipset or, sometimes the video chip). A PCI is just the interface by which any of these components are connecting, so it could be either one of them. Try to intall a program called
There are other programs that will allow you to scan and monitor the temperature of various components, but you have to figure out which part is causing the overheating -
Some drivers can make your components run beyond their regular idle speed and cause overheating, but it could also be at the hardware level. Let me know when you find out.