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

1-TB, 5400-rpm* 750-GB, 5400-rpm** 500-GB, 5400-rpm**
Length 100.4 mm 100.4 mm 100.4 mm
Width 69.9 mm 69.9 mm 69.9 mm
Weight 110 g 110 g 110 g
Interface type SATA SATA SATA
Transfer rate
Synchronous (maximum) 1.1 GB/sec 1.1 GB/sec 1.1 GB/sec
Security ATA security ATA security ATA security
Seek times (typical read, including setting)
Single track 1.5 ms 1.5 ms 1.5 ms
Average (read/write) 11/13 ms 11/13 ms 11/13 ms
Maximum 22 ms 22 ms 22 ms
Logical blocks 1,953,525,168 1,465,149,168 976,766,112
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.
Hard drive specifications (continued)
500-GB, 5400-rpm** 320-GB, 5400-rpm**
Dimensions
Height 9.5 mm 9.5 mm
Length 100.4 mm 100.4 mm
Width 69.9 mm 69.9 mm
Weight 110 g 110 g
Interface type SATA SATA
Transfer rate
Synchronous (maximum) 1.1 GB/sec 1.1 GB/sec
Security ATA security ATA security
Seek times (typical read, including setting)
1.5 ms 1.5 ms 1.5 ms
11/13 ms 11/13 ms 11/13 ms
22 ms 22 ms 22 ms
Hard drive specifications (continued) 129