Albert,  The easiest thing to try is to swap the power supply, if that fails to resolve it then you can try moving the drives back over to the other one, but you will need to move the raid controller in the unit as well. That is why you got the previous error, the new system had no configuration data for the array. Let me know how it goes.
Hello, Our Poweredge 745n is not working (4 disks, raid 5). Here are the symtoms: At boot, gets to the Dell screen, then only runs for a few seconds and stops. I opened the case and noticed that the power supply is making a lot of noise. I have an empty 745n that I can swap out the power supply with. But, I wanted to make sure that this problem was with the power supply and not something else. I tried putting the drives in the empty 745n, but I'm getting a Loading PBR for descriptior 1...done error. I can either try to repair the old one or try to get the new one to boot. Any insights would be helpful. Thank you, Albert
Problem with Poweredge 745n