Toshiba Satellite A110 Maintenance Manual - Page 22

-inch Hard Disk Drive, Hardware Overview, 4 Optical Device Drives, inch HDD - 195

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1 Hardware Overview 1.4 Optical Device Drives 1.3 2.5-inch Hard Disk Drive The internal HDD is a random access non-volatile storage device. It has a non-removable 2.5inch magnetic disk and mini-Winchester type magnetic heads. The computer supports hard drives up to 120 GB. The HDD is shown in Figure 1-1. Specifications are listed in Table 1-1. Figure 1-1 2.5-inch HDD Items Formatted capacity (GB) Logical Blocks (LBA) Rotational speed (rpm) Toshiba HDD Buffer (MB) Hitachi HDD Buffer (MB) Fujitsu HDD Buffer (MB) Bytes per sector 40GB 37.26 78,125,000 5400 16 8 8 512 60GB 55.89 117,187,500 5400 16 8 8 512 80GB 74.52 156,301,488 5400 16 8 8 512 Table 1-1 2.5-inch HDD specifications 100GB 93.15 195,371,568 5400 16 8 8 512 120GB 111.79 234,441,648 5400 16 None 8 512 1-8 [CONFIDENTIAL] Detroit 20 /Detroit 20E Series Maintenance Manual

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1
Hardware Overview
1.4 Optical Device Drives
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 120 GB.
The HDD is shown in Figure 1-1. Specifications are listed in Table 1-1.
Figure 1-1
2.5-inch HDD
Items
40GB
60GB
80GB
100GB
120GB
Formatted capacity (GB)
37.26
55.89
74.52
93.15
111.79
Logical Blocks (LBA)
78,125,000
117,187,500
156,301,488
195,371,568
234,441,648
Rotational speed (rpm)
5400
5400
5400
5400
5400
Toshiba HDD Buffer (MB)
16
16
16
16
16
Hitachi HDD Buffer (MB)
8
8
8
8
None
Fujitsu HDD Buffer (MB)
8
8
8
8
8
Bytes per sector
512
512
512
512
512
Table 1-1
2.5-inch HDD specifications
1-8
[CONFIDENTIAL]
Detroit 20 /Detroit 20E Series Maintenance Manual