OK...so this weekend had to move a server into the server room. It is the domain controller, and exchange server. It has an Nvidia nforce motherboard running a RAID 5 array. Moved it and now I have errors left and right. Referenced memory errors, Exchange wont start and one of the HD's is dropped out of the array with an error flag at bios startup. The main thing is the exchange as this is for a business that relies heavily on the shared calendars. Any ideas?