2012 thread on this exact problem. (2nd post is particularly interesting.) http://www.wsgf.org/forums/viewtopic.php?f=66&t=24405&sid=b7d5b709837c32d16154933c45

2012 thread on this exact problem. (2nd post is particularly interesting.) http://www.wsgf.org/forums/viewtopic.php?f=66&t=24405&sid=b7d5b709837c32d16154933c4578b3a9&start=10 http://www.wsgf.org/forums/viewtopic.php?f=66&t=24405&sid=b7... My new video card + 3 different (cheap) DP cables: PC endlessly power cycled every second. Bought proper DP cables from Accell. Problem gone. https://amzn.to/2KWPSDZ https://amzn.to/2KWPSDZ Never cheaping out on DP cables again.