HP ProBook 640 G1, 645 G1, 650 G1, and 655 G1 Notebook PCs - Maintenance and Service Guide

Table Of Contents
500-GB, 5400-rpm** 320-GB, 5400-rpm**
Single track 1.5 ms 1.5 ms
Average (read/write) 11/13 ms 11/13 ms
Maximum 22 ms 22 ms
Logical blocks 976,773,168 628,142,448
Disk rotational speed 5400 rpm
Operating temperature 0°C to 60°C (32°F to 140°F)
*1 TB = 1 trillion bytes when referring to hard drive storage capacity. Actual accessible capacity is less.
**1 GB = 1 billion bytes when referring to hard drive storage capacity. Actual accessible capacity is less.
NOTE: Certain restrictions and exclusions apply. Contact technical support for details.
130 Chapter 10 Specifications