Lenovo ThinkSystem SR250 V2 Maintenance Manual page 34

• Tier 1 customer replaceable unit (CRU): Replacement of Tier 1 CRUs is your responsibility. If Lenovo
installs a Tier 1 CRU at your request with no service agreement, you will be charged for the installation.
• Tier 2 customer replaceable unit (CRU): You may install a Tier 2 CRU yourself or request Lenovo to
install it, at no additional charge, under the type of warranty service that is designated for your server.
• Field replaceable unit (FRU): FRUs must be installed only by trained service technicians.
• Consumable and Structural parts: Purchase and replacement of consumable and structural parts
(components, such as a cover or bezel) is your responsibility. If Lenovo acquires or installs a structural
component at your request, you will be charged for the service.
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