Thanks for your suggestion.   Strangely, I don't have any advanced options under "changed advanced power settings"... All I see is: [IMAGE] Do you have any idea how to get the full options?   I do know that the option that you recommend disables the Intel turbo boost (even at 99% turbo boost gets disabled). Disabling turbo boost was recommended to me in a PM from a Dell representative, which I did via the BIOS. On a Cinebench R20 stresstest the temps now stay at 80 degrees, but the fans do not run at all. Only after the test is completed, the fans start to kick in. The laptop gets super toasty on both the keyboard and the bottom. Moreover, the test score dropped from 3700 to 2400 after disabling the turbo, so I find it hard to call this a "solution". The temperatures and CPU behaviour are much more stable without turbo boost. With turbo boost enabled, I constantly observe CPU and temperature spikes while the laptop is at idle, whereas now the temps and cpu frequency follow a straight line. Is it normal that the turbo boost results in such unstable behaviour?
I am now the proud though concerned owner of a Dell XPS 15 with an i9 configuration (I really need the 8 cores and the i7 8 core version was not available here). The laptop gets hot very fast and does not cool down well at all. Idle temperatures are around 55 degrees celsius at a max core frequency below 3 Ghz and just 2% CPU utilization. Once I start to do some CPU intensive work, even single core applications such as doing some computation in statistical software, the CPU temps spike immediately and frequently hits 100 degrees and starts throttling. I would expect this behaviour on full 100% CPU loads, but even on single core applications? On top of that, when stress testing the CPU the fan profile seems really weird. I currently have it the Dell power manager set to "Ultra Performance" and the fans are not spinning at all when idle (at 55 degrees). Then when I put the CPU under load, it happily lets the CPU reach 100 degrees and starts (unsuccesfully) throttling to reduce temps for like a minute. Only then will the fans kick in and not even at their full potential. On the other hand, when running the "Cool" power plan the fans go into full turbo jet engine mode, even when the laptop is idling. This power plan manages to push temps to 45 degrees at idle, not lower and the fans are working non-stop for that. Unfortunately, undervolting is not possible anymore. I am thinking to repaste the laptop, but I doubt that will make any difference. Especially with such a weird fan profile. Is this fan and temperature behaviour normal for this laptop? Does anybody have any tips on how to improve this?   Thanks!
XPS 15 9500, weird fan profile, high temps