Cru

The following table lists the major FRUs in your server and the CRU identification information. For a complete listing of FRU information, such as FRU part numbers and supported server models, go to: http://www.lenovo.com/serviceparts-lookup

Description	Self-service CRU	Optional-service
		CRU

Cooling shroud	Yes	No

Diagnostic module	No	Yes

Front panel board	No	Yes

Heat sink	Yes	No

Hot-swap hard disk drive	Yes	No

Hot-swap hard disk drive backplane	No	Yes

Hot-swap redundant power supply	Yes	No

Memory module	Yes	No

Microprocessor	No	Yes

Optical drive (available in some models)	Yes	No

Peripheral Component Interconnect (PCI) card	Yes	No

Rack handles	Yes	No

Riser card assembly	Yes	No

System board	No	No

System board battery	Yes	No

System fan	Yes	No

ThinkServer Management Module Premium (available as an option)	Yes	No

ThinkServer RAID 500 Upgrade Key for Advanced RAID (available as an	No	Yes
option)

ThinkServer RAID 700 Battery (available as an option)	No	Yes

ThinkServer RAID Super Capacitor Module (available as an option)	No	Yes

ThinkServer Trusted Platform Module (available as an option)	Yes	No

Chapter 3. Product overview 29

Lenovo RD540 manual Cru

Models: RD540