Thanks! I tried messing with that a few times and it killed more dies. I'll give it another whirl!
Make sure you don't jump up voltage. Just increase it to the next one and then WAIT. Don't rush into it. After my dad changed his SPI to 2.40 he had to wait approx 5 minutes before the DIE came back alive. I think if you shock it too much with increasing it too quickly that won't help.