HP 550 HP 550 Notebook PC - Maintenance and Service Guide - Page 96
Hard drive specifications
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Hard drive specifications 250-GB* 160-GB* 120-GB* Dimensions Height 9.5 mm 9.5 mm 9.5 mm Width Weight Interface type Transfer rate Security Seek times (typical read, including setting) Single track 70 mm 101 g SATA 100 MB/sec ATA security 3 ms 70 mm 101 g SATA 100 MB/sec ATA security 3 ms 70 mm 101 g SATA 100 MB/sec ATA security 3 ms Average 13 ms 13 ms 13 ms Maximum 24 ms 24 ms 24 ms Logical blocks 488,397,168 312,560,640 234,420,480 Disc rotational speed 5400 rpm 5400 rpm 5400 rpm Operating temperature 5°C to 55°C (41°F to 131°F) *1 GB = 1 billion bytes when referring to hard drive storage capacity. Actual accessible capacity is less. Actual drive specifications may differ slightly. NOTE: Certain restrictions and exclusions apply. Contact technical support for details. 88 Chapter 6 Specifications