Is this occurring on a Yoga 910 with a FHD IPS display or UHD IPS (4K) display?
Both. I purchased both to compare. (Btw, the 4K display on a 14 inch laptop serves little purpose other than to drain battery -- there's virtually no perceptible difference when your eyes are more than a foot away from the display, at least to my eyes... However, the 1080p panel is significantly worse with colors, brightness, and contrast, so the 4K version is still the one to get)
In the Event Log -> Windows Logs -> System are there any events being reported?
Strangely, yes. There are thousands of them, anywhere from half a dozen to 50+ occuring each second.
The source is "WHEA-Logger", level "Warning", event ID 17.
"A corrected hardware error has occured.
Component: PCI Express Root Port
Error Source: Advanced Error Reporting (PCI Express)
Bus: Device:Function: 0x0:0x1C:0x0
Vendor ID: Device ID: 0x8086:0x9D14
Class Code: 0x30400"
Does changing Power Settings -> Power & Sleep -> Advanced Power Settings -> from Balanced to High Performance resolve the issue? Does changing the settings one more time to Balanced resolve the fan issue for the rest of session? After resuming from sleep? After a reboot?
Not really, no. As far as I can tell, everything is working exactly as intended. This is a high-end mobile processor and it needs to be kept cool, and the only way to do this is with proper cooling design (i.e., a heatsink, a fan, and so on). Customers can't reasonably expect the fan to never come on when the processor is being utilized, and though browsing the web may seem like a low-power activity, the system will use the resources it has in order to keep things running quickly and smoothly. The fan itself is the problem, in my opinion, not the system or CPU or even the cooling design. The fan is just tiny and noisy and there isn't much that can be done about this.
The Forums team is in the process of verifying Melon as a Lenovo employee/vendor.
Thank you, I was curious about this.