I have this Asus UX302la Ultrabook and I get various blue screens. They happen when playing games (Hearthstone, Octodad, Civ5) or watching Youtube videos. They are random, but almost guaranteed to happen the those situations.
Most of the BSODs have ntoskrnl.exe involved. The error messages are pretty random, some off the top of my head: IRQL_NOT_LESS_OR_EQUAL, DPC_WATCHDOG_VIOLATION, Kernel_security_check_failure (something like that), and more.
As far as I know, there were no BSODs on Windows 8, and the BSODs occur only after I updated to Windows 8.1.
The laptop came with Windows 8, and I do not remember getting any BSODs while it was still running 8, though I am not certain (This is my GFs laptop, and she never got any BSODs when she first got it, but she also doesn't do much gaming).
Recently, because of all the BSODs, I did a fresh reinstall of Windows 8, and tested it by playing 4+ hours of Youtube videos, and 3+ hours of Hearthstone. I received no BSODs.
The only things I installed after Windows 8 reinstall: the wifi card drivers, Battle.net Client, Hearthstone.
I then updated to 8.1, and afterwards installing only the touch-pad drivers, Speccy, Steam, and the game Prison Architect on Steam.
This takes me here, where I received a BSOD while playing Prison Architect. The message was: WHEA_UNCORRECTABLE_ERROR. BlueScreenView has hal.dll and ntoskrnl.dll highlighted.
Any help or insight would be appreciated.
Edit: I'm fairly certain my temps are OK, and this is a laptop so there was no overclocking or anything. The BIOS was updated in the past, it is on version 209.