Acer Aspire 1690 Series, Service Manual

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44 Chapter 1
Seagate
Specification
Model Name N2-50 ST960821A
60GB, 4200rpm
N2-50 ST9808210A
80GB, 4200rpm
Interface (Mbytes/sec.) Ultra ATA/100 Ultra ATA/100
Performance
Transfer Rate
Max Internal
(Mbytes/sec.)
48.25 48.25
Transfer Rate
Max External
(Mbytes/sec.)
100 100
Cache, Multisegmented
(Mbytes)
8 8
Average Seek (msec) 12.5 12.5
Average Latency (msec) 5.6 5.6
Performance Level
2 4200 4200
Configuration/Orginzation
Discs/Heads 2/3 2/3
Bytes per Sector 512 512
Logical CHS 16383/16/63 16383/16/63
Recording Method RLL 0,11 RLL 0,11
Reliability/Data Integrity
Head-Rest Method Quick Step Ramp Load Quick Step Ramp Load
Nonrecoverable Read
Error per Bits Read
1 per 10
14
bits read
Poewr Management
Temperature, Operating (
o
C) 5
o
C to 55
o
C 5
o
C to 55
o
C
Temperature, Nonoperating (
o
C) -40
o
C to 70
o
C -40
o
C to 70
o
C
Shock, Operating : 2 msec(Gs) 250 250
Shock, Nonoperating : 1 msec
(Gs)
900 900
Acoustics
Idle (bels-sound power)
2.4 2.4
Quick Seek
(bels-sound power)
2.6 2.6
Performance
(bels-sound power)
2.9 2.9
Physical
Height (in/mm) .374/9.5 .374/9.5
Width (in/mm) 2.75/69.85 2.75/69.85
Depth (in/mm) 3.945/100.2 3.945/100.2
Weight (lb/g) .22/98 .22/98