I have ever IP build since 14316, all built using Kari's ISO utility from the downloaded ESD creating full, uncompressed .ISOs including 14931, if you need.
Mind you, I just tried get on my computer and it would not wake up either. But typing a bunch of letters and hitting enter it brought up the incorrect password dialog, at which point the screen actually woke up. So I might be facing the same issue as you.
I will investigate it more. The fast startup (I called it fast boot in my last post) setting was, again, enabled....
For the flash drive, it will probably be USB HDD, but you might have more options of the drive is connected before you post on and go into the BIOS.