HP DM4 - Manual (Page 94)

Hard drive specifications
750 GB* 640 GB* 500 GB* 320 GB*
Dimensions
Height 9.5 mm
Width 70 mm
Weight 101 g
Interface type SATA
Transfer rate 100 MB/sec
Security ATA security
Seek times (typical read, including setting)
Single track 1.0 ms 1.0 ms 1.0 ms 1.5 ms
Average 14.0 ms 14.0 ms 14.0 ms 12.0 ms
Maximum 22.0 ms 22.0 ms 22.0 ms 22.0 ms
Logical blocks 1,465,149,168 1,250,263,728 976,773,168 625,142,448
Disc rotational speed 7200 rpm 7200 rpm 7200 rpm 7200 rpm
Operating temperature 5°C to 35°C (41°F to 95°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.
86 Chapter 6 Specifications