Item Description Spare part
number
For use in models with discrete graphics 646356-001
For use in models with UMA graphics 646357-001
(15) Fan 646358-001
(16) Speaker assembly 646364-001
(17) Base enclosure
For use with 4330s/4331s models 646339-001
For use with 4430s/4431s models 646340-001
(18) USB 2.0 board 646360-001
(19) Optical drive (includes bracket, bezel, and screws)
Blu-ray BD-R/RE DVD±RW SuperMulti DL Drive 647947-001
Blu-ray ROM DVD±RW SuperMulti DL Drive 647948-001
DVD±RW and CD-RW SuperMulti DL Combo Drive 647946-001
DVD-ROM Drive 647945-001
(20) Memory modules (PC3-10600, 1333-MHz, DDR3)
4-GB 621569-001
2-GB 621565-001
1-GB 639736-001
(21) Hard drive
750-GB, 7200-rpm 633252-001
640-GB, 5400-rpm 603785-001
500-GB, 7200-rpm 634925-001
500-GB, 5400-rpm 634932-001
320-GB, 7200-rpm 641672-001
320-GB, 5400-rpm 622643-001
250-GB, 7200-rpm 635225-001
250-GB, 5400-rpm 622641-001
(22) Bottom door 646341-001
(23) Battery, Li-ion
9-cell (93 WHr, 2.8 Ah) 633809-001
6-cell (55 WHr, 2.8 Ah) 650938-001
6-cell (47 WHr, 2.2 Ah) 633805-001
28 Chapter 3 Illustrated parts catalog