HP Pavilion DV4-2155 Maintenance And Service Manual page 31

Illustrated parts catalog
Item Description
15 Memory module (1066 MHz, DDR3)
1024 MB
2048 MB
4096 MB
16 Power button board (includes cable)
17 Bluetooth module (select models only)
Bluetooth module cable (select models only)
UMA graphics subsystems
Discrete graphics subsystems
18 USB board
USB board cable
19 RTC battery
20 Audio board
Audio board cable
21 Battery
12-cell Li-Ion (2.2 Ah, 95 Wh)
6-cell Li-Ion (2.55 Ah, 55 Wh)
6-cell Li-Ion (2.2 Ah, 47 Wh)
3-cell Li-Ion (4.4 Ah, 47 Wh)
22 Base enclosure
23 Optical drive (includes bezel and bracket)
DVD±R/RW SuperMulti DL Drive with LightScribe
Blu-ray ROM DVD±R/RW SuperMulti DL Drive with LightScribe
24 Hard Drive (includes hard drive bracket) (for hard drive spare part component information see
devices" on page 3-11
25 Processor (includes replacement thermal material):
Intel Arrandale CPU-uPGA Single-Core i5-520M (2.4 GHz, 3-MB L3 cache, 1066 MHZ SC
Turbo)
Intel Arrandale CPU-uPGA Single-Core i5-540M (2.53 GHz, 3-MB L3 cache, 1066 MHZ SC
Turbo)
26 Mini Card bracket
3–8
for hard drive spare part component information)
Spare part number
590351-001
590352-001
590353-001
486853-001
537921-001
486847-001
488130-001
486842-001
486843-001
486835-001
486840-001
486841-001
484172-001
484171-001
484170-001
516915-001
486848-001
482177-001
508123-001
"Mass storage
594187-001
594188-001
577509-001
Maintenance and Service Guide