I'll do a search, but it's possible I mentioned that on another forum, or possibly I only imagined mentioning it... but yeah, a pin broke off and now the CPU wont boot in any board.
I had a go at resoldering it, but, well, let's just say my Soltek TX board has a broken-off pin floating around in the socket now...
Edit: Yes, it does seem that I merely imagined posting about the broken pin... My bad.
That doesn't make it suck any less...
Edit2: Found it viewtopic.php?p=258470&
So it seems I didn't realise that part of the pin was left behind at the time... I guess it was just luck that it still booted at the time.
Still, this K6-2+ is one zippy chip!
Edit3: Made that last paragraph sound a bit less derpy.