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Acer 4000 User Manual

Page 43

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36

Chapter 1

Item

Seagate

Model Name

ST9100822A

Capacity (GB)

100

Guaranteed sectors

195,371,568

Bytes per sector

512P

Physical read/write heads

4

Discs

2

Caches(Mbytes)

8

Recording density, BPI (bits/Inch typical)

703,000

Track density. TPI
(track/Inch typical)

115,000

Areal density (Gbits/Inch max)

86

Rotational speed (RPM)

4200

Internal data transfer rate OD (Mbytes/sec
max.)

48.25

I/O data-transfer rate
(Mbytes/sec max.)

100

ATA data-transfer modes supported

PIO modes 0-4
Multiword DMA mode:0-2
Ultra DMA mode:0-5

Track-to-track seek time (msec typical)

1.0 (read)
1.5 (write)

Average seek time
(msec typical)

12.5

Seek Power

2.3W

Read/Write Power

2.05W/2.1W

Idle mode

0.99W

Standby mode

0.2W

Sleep mode

0.2W

Voltage tolerance
(including noise)

5V

%

Ambient temperature

Operating:

5

o

C to 55

o

C

nonoperating:

-40

o

C to 70

o

C

Temperature gradient (

o

C per hour max,

noncondensing)

20

o

C (operating)

30

o

C (nonoperating)

Relative Humidity gradient

30% per hour max

5

±