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3078
September 12th, 2016 18:00
XPS 9350 CPU temperature issues
Hi everyone. I recently ordered an XPS 9350 (i7-6560U model with 16 Gb ram) and installed 16.04 in combination with a mainline kernel (4.8 rc6) to work around issues connecting a 4k monitor (P2451Q) over a displayport connection. Everything is working well but I'm noticing occasional core temperature warnings in the dmesg log (CPU#: Core temperature above threshold, cpu clock throttled) and the laptop is is running fairly warm. The temperature warnings remain even when I use the stock 16.04 kernel so it doesn't appear related to the mainline kernel. Has anyone had similar issues?
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aappddeevv
66 Posts
0
September 13th, 2016 16:00
I seem to recall getting alot more fan activity than I liked. I installed TLP and that seemed to help. I recall adjusting the governor choice. I also found that some gnome utilities would eat my CPU alive so I had to disable some gnome parts (the google email "online" accounts) in particular. You may want to keep an eye on the software side and see if that causes it to spike the CPU.
hvbakel
9 Posts
0
September 18th, 2016 14:00
Thanks, this turned out to be a hardware issue. A dell technician replaced the heatsink and fan, and the CPU is now idling about 20C lower than before and doesn't peak above 85C when under high load (which would previously push the core temperatures to above the critical 100C limit). I suspect this was a case of a badly installed heatsink with either too much or too little thermal paste applied.