I have a bcm 450 that hdd2 was getting red led every once and a while so I ordered two drives for the system and cloned them to new drives. I replaced the drives with cloned drives and booted up. System comes up but none of the HDD or RAID leds come on at all but the system works and seems to be fine. Does this seems normal? I would think they would be green and seems like before the swap they were always yellow but maybe that meant there was error. I can't find anything in manuals for those leds. Any info would be helpful. Thanks