Lenovo ThinkStation P920, Hardware Maintenance Manual, Page: 42 / 246

Major FRUs and CRUs
The following illustrations show the locations of the major FRUs and CRUs in the computer. To remove the
computer cover, see “Preparing your computer and removing the computer cover” on page 103.
The following table lists the major FRUs and CRUs shown in Figure 4 “Major FRUs and CRUs” on page 35
and Figure 5 “Accessories” on page 37 and identify which CRUs are self-service CRUs and optional-service
CRUs.
Notes:
• Self-service CRUs: Refer to parts that can be installed or replaced easily by customer themselves or by
trained service technicians at an additional cost.
• Optional-service CRUs: Refer to parts that can be installed or replaced by customers with a greater skill
level. Trained service technicians can also provide service to install or replace the parts under the type of
warranty designated for the customer’s machine.
• FRUs: Refer to parts that must be installed or replaced only by trained service technicians. If customers
choose to replace the FRUs by themselves, the product warranty might be affected.
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P920 Hardware Maintenance Manual