Desktop computer, Dell XPS 8700, Windows 10 Pro 64 bit version 1803, upgrade from 1709 a couple of weeks ago.
I have an APC UPS and from time to time look at the PowerChute PE panel to check power consumption and available runtime on battery. Looked at it just now (first time since the features upgrade) and found available runtime almost halved (from around 54 minutes down to 30), power consumption during normal computer operation, which has for a very long time been unchanged at around 60 watts, now 100 watts, and (thanks to Speccy) the CPU temperature right around the red line at 58-60 Celsius (red line is at 60).
Yes the weather is warmer now (I'm in south-central California) but last summer this did not happen in spite of outdoor temperatures up to 120 F. (49 Celsius). Of course I run A/C in the computer room, that has not changed in years. Room temperature around 70 degrees F.
I am surprised and rather alarmed by the sudden change in power consumption (no change in the way I use the computer) and the CPU temperature (never before at that high level).
I'm thinking, first thing to try is open up the case and clean out any dust (this is farming country and VERY dusty, my house is surrounded by hundreds of acres of crop fields, mostly alfalfa hay for cattle feed; I have dogs that go in and out through a doggy door, but never into the computer room, that door is always closed).
Any other suggestions? Is there any way this could be related to the features upgrade?