I have a desktop PC, which was mounted for me by a friend. It is running OpenSUSE 13.2. This is the installed configuration:

  • Motherboard: ASUS P9X79 Pro
  • Processor: Intel Xeon E5/Core i7
  • RAM: 4 x 4 GB G.SKill Ripjaws 1333MHz DDR3 F3-10666CL9D-8GBRL
  • Hard disks: two SATA 2TB disks and one SATA 3TB disk
  • Graphics card: GeForce GTS 450 Rev. 2

The cabinet has four fans (front, top, back and bottom), the CPU has its fan, and the GPU has its fan as well.

Even with all of these fans, when the system is running light, core temperatures are about 43° Celsius (111° F). Whenever I start something a bit more demanding, like a video conversion with ffmpeg, core temperatures double, and there are a lot of CPU clock throttle messages in dmesg.

I'd like to reduce the heat in my system. How can I do that?

  • Hi Iclaudius, it might help people if you can provide details of what parts you've got: the current CPU fan, the model of case, how old is the machine are a few important ones. Link to an uploaded image if you're unsure what they are. The first thing I'd make sure is that while the machine is off make sure all the fans and vents are clear of dust, as this can make a big difference. – Ash Jan 3 '16 at 9:06
  • Hi, @Ash, thank you for your help. Some photos can be found at link . This machine is reasonably dust-free, and even right after a cleaning there is no noticeable improvement. The components were bought and put together in 2013. – lclaudius Jan 3 '16 at 10:47
  • You've got a bird's nest of cables in there -- doing a bit of cable management should help airflow and potentially help with cooling. You've also got what looks like the equivalent of a stock CPU cooler. You haven't provided the CPU model number but a high-end E5 will likely swamp a stock cooler, so you might want to consider an aftermarket cooler. Or at least remount the current cooler. – Ash Jan 11 '16 at 5:59

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