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1 Hardware Overview 1.3 2.5-inch Hard Disk Drive
1-12 [CONFIDENTIAL] Satellite M70 /Satellite Pro M70 Series Maintenance Manual
1.3 2.5-inch Hard Disk Drive
The internal HDD is a random access non-volatile storage device. It has a non-removable 2.5-
inch magnetic disk and mini-Winchester type magnetic heads. The computer supports hard drives
up to 100 GB.
The HDD is shown in Figure 1-1. Specifications are listed in Table 1-1 and Table1-2.
Figure 1-1 2.5-inch HDD
Items 40GB 60GB 80GB 100GB
Formatted capacity (GB) 37.26 55.89 74.52 93.15
Logical Blocks (LBA) 78,125,000 117,187,500 156,301,488 195,371,568
Rotational speed (rpm) 5400
5400 5400 5400
Toshiba HDD Buffer (MB) 16 16 16 16
Hitachi HDD Buffer (MB) 8 8 8 8
Fujitsu HDD Buffer (MB) 8 8 8 8
Bytes per sector 512 512 512 512
Table 1-1 2.5-inch SATA HDD specifications
Items 40GB 60GB 80GB 100GB
Formatted capacity (GB) 37.26 55.89 74.52 93.15
Logical Blocks (LBA) 78,125,000 117,187,500 156,301,488 195,371,568
Rotational speed (rpm) 4,200/5400 4,200/5400 4200/5400 4200/5400
Toshiba HDD Buffer (MB) 8/16 8/16 8/16 8/16
Hitachi HDD Buffer (MB) 2/8 8/8 8/8 8/8
Fujitsu HDD Buffer (MB) 8/8 8/8 8/8 8/8
Bytes per sector 512 512 512 512
Table 1-2 2.5-inch PATA HDD specifications