I could give you a couple part numbers to look for, but Dell hasn't sold 73gb drives in several years, so I wouldn't be able to point you in the right direction on where to find them. RW675RW548 (current hard drives part number)  
Hello: I send you this message because a few days ago, our Dell PowerEdge 2970 server that is out of warranty has stopped working and, when we try to start it, always offers the following information:PCIe Training Error: Integrated Storage SlotSystem halted! We are interested in getting it back on track, Does Dell have a repair service for out-of-warranty servers? Otherwise, can someone tell us what could be failing and, if possible, what electronic card should we replace to get it going again? Thank you very much and best regards.[IMAGE]
PowerEdge 2970 PCIe Training Error