Acer 4000 - Manual (Page 43)

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 ±