My issue with data loss, that I spoke of in earlier posts, was originally thought to be the hard drives. I removed all the originial hard drives, and replaced them with new ones and still experienced data loss. After poking around with the computer hardware it seems to be a bad RAM slot. I recently purchased these real nice PNY 1 Gigabyte DDR2 RAM chips, and they are recognized fine in the BIOS, although during system operation only 1 Gig is recognized and utilized. It seems to be a hardware malfunction on slot 2. With RAM in both slots the RAID drives were crashing while synchronizing, but when the RAM in slot 2 is removed system stability improves dramatically.