Lenovo ThinkStation P310 Hardware Maintenance Manual page 38

Figure 4. Major FRUs and CRUs
The following table lists the major FRUs shown in Figure 4 "Major FRUs and CRUs" on page 32 and identifies
which FRUs are also self-service CRUs or optional-service CRUs.
Notes:
• Self-service CRUs: Parts to be installed or replaced by customer themselves.
• Optional-service CRUs: Parts can be installed or replaced by customers or technicians under certain
terms of the applicable warranty service type for your country or region.
• Non-CRUs: Parts must be installed or replaced only by trained service technicians.
Number
1
Power supply assembly
2
Flex storage enclosure (some models)
3
Front-access storage enclosure (some models)
4
5.25-inch flex module (some models)
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ThinkStation P310 Hardware Maintenance Manual
FRU description
Self-service CRU Optional-service CRU
No
No
No
No
Yes
Yes
Yes
Yes