User Guide

1 Hardware Overview 1.3 2.5-inch HDD
1.3 2.5-inch HDD
The computer contains an extremely low-profile and lightweight, high-performance HDD.
The HDD incorporates a 2.5-inch magnetic disk and mini-Winchester type magnetic heads.
Storage capacities supported are 20,30, 40, 60 and 80 GB.
The HDD interface is Enhanced IDE, ATA66 (for GB), or ATA100 (for 20/30/40/60/80 GB).
The HDD is shown in Figure 1-4 and its specifications are listed in Table 1-1.
Figure 1-4 2.5-inch HDD
Table 1-1 2.5-inch HDD specifications
Specifications
Toshiba Hitachi Toshiba Toshiba Hitachi Hitachi Toshiba
Item
MK6021
GAS
DK23EB-
60
MK6022
GAX
MK3021
GAS
DK23EB-
40
DK23EA-
30
MK4019
GAX
Formatted
capacity (GB)
60.0116GB 60.0116GB 60.0116GB 30.0058GB 40.0007GB 30.0058GB 40.0007GB
User data
sectors
117,210,24
0
117,210,24
0
117,210,24
0
58,605,120 78,140,160 58,605,120 78,140,160
Bytes/sector 512 512 512 512 512 512 512
Rotational
speed
(RPM)
4200rpm 5400rpm 5400rpm 4200rpm 5400rpm 4200rpm 5400rpm
1-12 Satellite M20 Maintenance Manual