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Replaceable components consist of consumable parts, structural parts, field replaceable units (FRUs), and customer replaceable units (CRUs):

• Consumable parts: Purchase and replacement of consumable parts (components, such as batteries and printer cartridges, that have depletable life) is your responsibility. If Lenovo acquires or installs a consumable component at your request, you will be charged for the service.
• Structural parts: Purchase and replacement of structural parts (components, such as chassis shell, bay fillers, and bezel) is your responsibility. If Lenovo acquires or installs a structural component at your request, you will be charged for the service.
• Field replaceable unit (FRU): FRUs must be replaced only by a trained service technician, unless they are classified as customer replaceable units (CRUs).
• Tier 1 customer replaceable unit (CRU): Replacement of Tier 1 CRUs is your responsibility. If Lenovo installs a Tier 1 CRU at your request without a service contract, you will be charged for the installation.
• Tier 2 customer replaceable unit: 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 Flex System Carrier-Grade chassis.

For information about the terms of the warranty, see the Warranty Information document that comes with the Flex System Carrier-Grade chassis.

1. See the Lenovo ServerProven website for a list of the I/O modules that are compatible with the Flex System Carrier-Grade chassis.
2. Do not mix different types of power supplies. Each chassis must contain either all dc-powered supplies or all ac-powered supplies.

Consumable and structural parts

Consumable and structural parts are not covered by the Statement of Limited Warranty.