![](/images/new-backgrounds/1266658/26665859x1.webp)
.
Hard Disk Drive Interface
Item |
|
|
|
|
|
|
|
Vendor & Model | HGST Moraga | HGST Moraga | HGST Moraga |
Name | IC25N030ATMR04 | IC25N040ATMR04- | |
| Fujitsu | TOSHIBA Pluto 40G | HGST Fresno |
| Seagate N1 ST93015A | MK4025GAS | TOSHIBA Neptune |
|
| Fujitsu V40+ MHT2040AT | MK6021GAS |
|
| Seagate N1 ST94019A |
|
|
|
|
|
Capacity (MB) | 30000 | 40000 | 60000 |
|
|
|
|
Bytes per sector | 512 | 512 | 512 |
|
|
|
|
Logical heads | 16 | 16 | 16 |
|
|
|
|
Logical sectors | 63 | 63 | 63 |
|
|
|
|
Drive Format |
|
|
|
|
|
|
|
Logical cylinders | 16383 | 16383 | 16383 |
|
|
|
|
Physical read/write | 2/Not show/2 | 2/Not show/2/2 | 3/4 |
heads |
|
|
|
|
|
|
|
Disks | 1/Not show/1 | 1/Not show/1/1 | 2 |
|
|
|
|
Spindle speed (RPM) | 4200RPM | 4200RPM | 4200RPM |
|
|
|
|
Performance Specifications |
|
| |
|
|
|
|
Buffer size | 2MB | 2MB/8MB for Toshiba | 2MB/8MB for HGST |
|
|
|
|
Interface | |||
| 6 for HGST and Toshiba | 6 for HGST | 6 for HGST |
|
|
|
|
Data transfer rate | 350 | 350 | 350 |
|
|
| |
s) |
|
|
|
|
|
|
|
Data transfer, rate | 100 MB/Sec | 100 MB/Sec | 100MB/Sec |
(host~buffer, Mbytes/ |
|
|
|
s) |
|
|
|
|
|
|
|
DC Power Requirements |
|
| |
|
|
|
|
Voltage tolerance | 5 +/- 5% | 5 +/- 5% |
|
|
|
|
|
CD-ROM Interface
Items |
| Specification |
|
| |
Vendor & Model Name | QSI SCR242 | |
| Mitsumi SR244W1 | |
|
|
|
Performance Specification |
|
|
|
| |
Brust Data Transfer rate | PIO mode 4: | |
| 16.7 | MB/sec Max. (Mode 0~4) |
| ||
| 16.7 | MB/sec Max. (Mode 0~2) |
| Ultra DMA mode 2: | |
| 33.3MB/sec Max. | |
|
|
|
Access time (typ.) | QSI- |
|
| Random: 90 ms | |
| Full Stroke: | 180 ms |
| Mitsumi- |
|
| Random: 100 ms | |
| Full Stroke: | 240 ms |
|
|
|
22 | Chapter 1 |