No signal to the monitor on every first boot - Sapphire R9 290 Tri-X

A full bios reset then the reinstall of the latest bios for my card did wonders...
great stability better FPS much smoother.. Was able to play Watch Dogs with The Worse Mod for like three hours... Knocking down convoys and the likes and then around 01:00am BANG watchdogs.exe stopped working crash to desktop. First time this happened...
No BSOD no hangups
Was able to restart from desktop right back into last autosave
Could be a badly coded game...

 

Also randomly fails to POST - Sapphire R9 290 Tri-X OC

I have a very similar problem with the exact same card model, except it is a bit more severe for me. It seems that my computer will only POST after I've reset the damn thing a few dozen times, in addition to completely removing the card and putting it back in. When it does boot, everything runs fantastically, no stability issues, and stellar performance all day long. When I shut it off for the night, the next morning it will not boot again until I've screwed with it for an hour.

I just put up an RMA with Newegg.