Processor heat sink, Battery, Hard drive, RTC battery

Item	Description	Spare part number

	For use in models with the NVIDIA Quadro K610M graphics card	735375-001

(20)	Processor heat sink

	For use only with computer models equipped with dual-core processors	735371-001

	For use only with computer models equipped with quad-core processors	735372-001

(21)	Battery

	8-cell, Li-ion, 2.8 Ah (83 WHr)	708456-001

	8-cell, Li-ion, 2.8 Ah (75 WHr)	708455-001

(22)	Base enclosure (includes latches)	733641-001

(23)Hard drive

NOTE: The hard drive bracket and screws are included in the Hard Drive Hardware Kit, spare part number 734280-001.

	1 TB, 5400-rpm, 2.5-in		676521-001

	750	GB, 7200-rpm, 2.5-in	633252-001

	500	GB, 7200-rpm, 7 mm	703267-001

	500	GB, 7200-rpm, SED (Self-Encrypting Drive), 7 mm	703268-001

	500	GB, 5400-rpm, FIPS, 7 mm	730946-001

	320	GB, 7200-rpm, 2.5-in	603783-001

(24)	RTC battery		734300-001

(25)	Service door		733635-001