Steve here. I’m Martin’s tech support guy. Thanks for all the replies. We both want to get this system fixed and out the door.
I think that removing the Lacie externals and using all-new internal drives might be the way to go. I’ve seen the Lacie power supply failure a bunch of times, but couldn’t find a problem drive when I looked at the system a couple weeks ago.
The reason we used SoftRAID was to slice the 3 disk RAID into six partitions – Avid Media Composer still requires small, non-TB partitions. I couldn’t find a way to split the RAID using Apple’s Disk Utility.
Even though the RAM passed memtest and Apple Hardware Test, I’m tempted to replace it too with a new 12GB kit.
What about the video card? Any chance it’s a video card failure, or a motherboard problem?