9-4
Specifications
Track to track seek rate
!
120-MB: 20ms (typ)
!
1.44-MB/720-KB: 25ms (typ)
Hard Disk Drive
Specifications vary depending upon model:
!
Ultra DMA/33 support
!
Capacity — Internal 6, 10, 12, or 20 GB, or higher
!
Drive height — 9.5 mm
!
Read/write track-to-track seek rate — 3 ms – 4.5 ms
!
Average seek time — 12 ms – 14 ms
!
Revolutions per minute — 4000 - 4200
!
Data transfer rate
16.6 MB/sec (PIO mode4/DMA mode2)
33.3 MB/sec (ultra DMA)
!
Media data rates — 88.0 bit/sec – 118.0 bit/sec
!
Mean Time Between Errors (MTBF) — 300,000 hours
24X-speed CD-ROM Drive
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Type — 5-inch CD-ROM Pack
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Average Data Transfer Rates
2550 KB/second (mode 1)
2907 KB/ second (mode2)
!
Read Rate — 3600 KB/sec max, 2550 KB/sec avg
!
Burst Transfer Rate — 16.7 MB/sec, PIO mode4/DMA mode
!
Average Access Time
120 ms (Random)
250 ms (Fullstroke)
!
Memory Buffer — 128 KB
!
Interface — IDE (ATAPI)
!
Photo CD Compatibility — Multisession Photo CD,
Video CD (CD-1, CD-I Ready, CD-G, CD-Plus, CD-DA,
CD-EXTRN, and CD-ROM XA)
Содержание VERSA SXI
Страница 1: ...NEC VERSA SXI SERIES S E R V I C E A N D R E F E R E N C E M A N U A L...
Страница 65: ...4 System Board Layout Connector Board Main Board...
Страница 68: ...5 Illustrated Parts Breakdown Illustrated Parts Breakdown Parts List...
Страница 69: ...5 2 Illustrated Parts Breakdown Illustrated Parts Breakdown...
Страница 75: ...7 Troubleshooting Quick Troubleshooting Helpful Questions...
Страница 83: ...9 Specifications System Components Connector Locations Memory Map Interrupt Controllers...
Страница 104: ...NEC Computers Inc 15 Business Park Way Sacramento CA 95828 www neccomp com 819 200666 002 11 2001...