Quote Originally Posted by Think View Post
Yes, they are both being sent out with expedited replacement. I can't see it being the powersupply since they were still operating but generating errors until one finally collapsed. The other Velicoraptor that works has always been connected to the same powersupply so the only conclusion could be the motherboard IC9 for those particular ports?.

Don't know but will soon find out with these drives installed and running. I will test them thoroughly to see what happens in the next few days.

Thanks.
Could very easily be the PSU. If your PSU is unhappy with the balance of the load you're splitting across the different rails, or it's just not great quality, you're possibly getting high ripple. Lots of ripple == components that operate fine for a while, since they're getting the "right" voltage, but die because of minute fluctuations. What is your PSU?
It could very well also be your controller, by the way...I've only heard of a controller doing that once before (680i), but I supposed it could happen again.