ASUS PCI-AS300 User's Manual
5
Audio Adapter Amplifier
You can Enable or Disable the audio adapter's amplifier feature using the following
jumpers. If you plan on connecting unamplified speakers to the card, enable the
amplifier. If you will use self-amplified speakers, disabling the amplifier on the
card will improve the sound quality.
Audio Adapter Amplifier Selector (JP4, 5)
(Def)
Amplifier
Enable Disable
JP4
[2-3]
[1-2]
JP5
[2-3]
[1-2]
1
JP5
23
JP4
Onboard Audio Amplifier (Enable / Disable)
1
JP5
23
JP4
Enable
Disable
III. INSTALLATION
(Jumpers)
III.
INST
ALLA
TION
Audio Adapter Base I/O Addresses
I/O addresses (or I/O address range) are areas of memory used by your computer's
microprocessor to distinguish among various peripheral devices connected to your
system when sending or receiving data. There are several such devices on your
audio card. These devices are listed with their factory default I/O addresses.
I/O Address occupied by the Audio Card.
I/O Address Range
Usage
200H to 207H
Game Port
220H to 233H
Audio Interface
330H to 331H
MPU-401 UART MIDI Interface
388H to 38BH
FM Music Synthesizer