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VS440FX Motherboard Technical Product Specification
The audio subsystem requires up to two DMA channels and two IRQs. The following table shows
the IRQ, DMA channel, and base I/O address options.
Resource
Sound Blaster
(DMA playback, DMA / IRQ shared
with Windows Sound System capture)
Windows Sound System
(DMA playback)
MPU-401
(IRQ shared with Sound Blaster)
MIDI / Game Port
FM Synthesis
CS4236 Control
1.9.1 Audio Drivers and Utilities
Audio software and utilities are available from Intel's World Wide Web site (refer to Section 5.2).
1.9.2 CD-ROM Audio Connector
A 1 x 4-pin connector is available for connecting an internal CD-ROM reader to the audio
subsystem's mixer. The connector is compatible with most cables supplied with ATAPI CD-ROM
readers designed to connect to audio add-in cards.
1.9.3 Telephony Connector
A 2 x 2-pin connector is available for connecting the monaural audio signals of an internal
telephony device such as a fax/modem to the motherboard's audio subsection. The mono-in and
mono-out signal interface is necessary for telephony applications such as speakerphones and
answering machines.
1.9.4 Wavetable Connector
An 8-pin connector supports wavetable add-in cards. Most wavetable add-in cards are installed in
a standard ISA slot; a cable is then routed from the card to the connector.
Compatible wavetable cards are available from several vendors. The ICS WaveFront and the
CrystaLake Series 2000 wavetable product families offer general MIDI-compatible audio
operation.
18
IRQ
DMA channel
(Options)
(Options)
5 (best choice)
0 (best choice)
7
3
9
11
5
0
7
1 (best choice)
9 (best choice)
3
11
5 (best choice)
7
9
11
I/O Address
(Options)
210-21Fh
220-22Fh (best choice)
230-234h
240-24Fh
250-25Fh
260-26Fh
534-537h (best choice)
608-60Bh
300-301h
330-331h (best choice)
332-333h
334-335h
200-207h
388-308Bh
FF0-FFFh
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