HP Pavilion DV4-2155 Maintenance And Service Manual page 9

Product description
Category
Memory
Hard Drives
Optical drives
Audio
Modem
1–2
Description
2 customer-accessible/upgradable memory module slots
Supports dual-channel memory
Supports up to 8 GB of system RAM
1066-MHz, DDR3
Supports the following configurations:
8192 MB total system memory (4096 × 2, dual-channel)
6144 MB total system memory (4096 + 2048)
4096 MB total system memory (2048 × 2, dual-channel)
3072 MB total system memory (2048 + 1024)
2048 MB total system memory (1024 × 2, dual-channel)
2048 MB total system memory (2048 × 1)
1024 MB total system memory (1024 × 1)
Supports a 9.50-mm, 6.35-cm (2.50-in) hard drive
Supports HP ProtectSmart Hard Drive Protection
Customer-accessible
Serial ATA
Supports the following hard drives:
500 GB, 7200-rpm
320 GB, 7200-rpm
250 GB, 7200-rpm
160 GB, 7200-rpm
12.7-mm tray load
Serial ATA (SATA)
MultiBay weight saver
Customer-accessible
Supports the following drives:
Blu-ray ROM DVD±R/RW SuperMulti DL Drive with LightScribe
DVD±R/RW SuperMulti DL Drive with LightScribe
High-definition audio
Meets SRS logo requirement
Supports Microsoft® premium requirements
Pavilion-branded Altec Lansing speakers
56K MDC V.92 data/fax modem (select models only)
(Continued)
Maintenance and Service Guide