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1-8 Product Information HP OmniBook 4100/4150
Table 1-9. System Input/Output Addresses (100-3FF)
120-127 Audio (OmniBook 4150† only)
170-177 Internal CD-ROM drive (secondary IDE controller)
1F0-1F7 Internal hard disk (primary IDE controller)
220-22F Audio
376 Internal CD-ROM drive (secondary IDE controller)
378-37F LPT1 (printer port)
388-38B Audio
3B0-3BB VGA adapter
3C0-3DF VGA adapter
3E0-3E1 PCMCIA controller
3F0-3F5 Floppy controller
3F6 Internal hard disk (primary IDE controller)
3F7 Floppy controller
3F8-3FF COM1 (serial port)
† Models called 4150† in this manual have no marking in the serial number,
whereas models called 4150B have 4150 B after the serial number.
Table 1-10. DMA Channels
0 Sound record (OmniBook 4100/4150†)
Free (OmniBook 4150B)
1 Sound playback
2 Floppy drive
3 LPT1 (ECP parallel port)
4 Cascade
5 Free
6 Free
7 Free
† Models called 4150† in this manual have no marking in the serial number,
whereas models called 4150B have 4150 B after the serial number.