Finding parts, locations, and addresses
Locate physical part locations and identify parts with system diagrams.
You can identify the enclosure in which a field-replaceable unit (FRU) is plugged by its location
code. The first character of the location code is always U followed by a 4–character feature
code or enclosure type as shown in the following example: U78CB.001.10ABCDE-P3-C31
In this example, the enclosure type is 78CB.
The next 3 characters of the location code indicate the model of the enclosure (001 in the
example). The next string of characters provides the enclosure serial number (10ABCDE in the
example).
Notes:
- On a single-node system, the characters of the location code that indicate the model might be replaced with ND0.
- On a 9080-HEU system, the model number might be replaced by a more specific enclosure indicator. SC1 indicates the system control unit, and ND0 through ND3 indicate system node 0 through system node 3.
Using this information, locate the enclosure with the FRU you want to replace. Find the enclosure
type in the following table and go to the service guide for that enclosure.
| Enclosure number | Systems, expansion drawers, and storage enclosures |
|---|---|
| U78DA.mmm, where mmm is 001 or ND0 | 9824-22A or 9856-22H |
| U78DB.mmm, where mmm is 001 or ND0 | 9824-42A or 9856-42H |
| U780C.mmm, where mmm is 001 or ND0 | 9043-MRU |
| U78D6.SC1 | 9080-HEU system control unit |
| U78D8.mmm, where mmm is ND0, ND1, ND2, or ND3 | 9080-HEU system node |
| U5B61.001 or U5B67.001 | ENZ0 PCIe Gen4 I/O expansion drawer |
| U50EE.001 | NED24 NVMe expansion drawer |
Locate the FRU
The string of characters that follow the enclosure serial number identifies the FRU location
within the enclosure: U78CB.001.10ABCDE-P3-C31 In this example, P3-C31 is
the location of the FRU to be replaced. Use the graphics and tables to locate the FRU and link to
its removal and replacement procedure.