The system is freezing. Have you tried running something like Furmark to see if you can get a crash? If this happened after a re-paste it could be that some of the paste got where it doesn't belong or you installed the heatsink too tight or the process didn't go as planned and you're actually overheating. I had a new water block that I installed and the system wouldn't boot. After removing the block, cleaning up the excess paste, and reinstalling the block while being careful not to over tighten everything has been running great. I still don't know what was actually causing the problem. If you can duplicate the problem with Furmark then I'd re-do the card again.
A bus station is where a bus stops. A train station is where a train stops. On my desk, I have a work station…