Use the following table to determine the part number for the field replaceable unit (FRU):
| CCIN or FFC | Type and model | Part number | Description | Location code |
| 2513 | Any | 42R6578 | PCI-X DDR quad channel ultra320 SCSI RAID adapter, the FRU is an assembly of two parts, replace the assembly. The same FRU is used for FFC 252E. | Un-P1-Cx |