Hi
Z97X-UD3H with a 4790K processor.  I'm getting WHEA-Logger warning errors on Win8.1  No BSOD's.   
All default settings on the motherboard, latest BIOS - F7.  All drivers up to date
Screenshots here:  
http://www.programgood.net/2014/07/24/WHEALogger.aspxAny thoughts?  Or just ignore :-)
Cheers
Dave